KASAN: use-after-free Read in ring_buffer_peek

Status: premoderation: reported on 2026/08/02 07:28
Reported-by: syzbot+7c4dc8a4b8ab4d38587e@syzkaller.appspotmail.com
First crash: 26d, last: 5h32m
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-6-1 KASAN: slab-out-of-bounds Read in ring_buffer_peek 19 12 5d20h 29d 0/2 premoderation: reported on 2026/07/30 09:52
upstream KASAN: use-after-free Read in ring_buffer_peek prio:normal 19 C 1 16d 12d 2/29 upstream: reported C repro on 2026/08/16 22:10
android-5-15 KASAN: use-after-free Read in ring_buffer_peek origin:lts 19 syz, C 18 1d09h 29d 0/2 upstream: reported C repro on 2026/07/30 13:32

Sample crash report:
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfbb ]---
==================================================================
BUG: KASAN: use-after-free in rb_buffer_peek+0x71a/0x7a0 kernel/trace/ring_buffer.c:4568
Read of size 4 at addr ffff88819e2df071 by task syz.9.2089/8545

CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x100/0x140 mm/kasan/report.c:452
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
 rb_buffer_peek+0x71a/0x7a0 kernel/trace/ring_buffer.c:4568
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868

The buggy address belongs to the page:
page:ffffea000678b7c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19e2df
flags: 0x4000000000000000()
raw: 4000000000000000 ffffea000678b7c8 ffffea000678b7c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffff88819e2def00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88819e2def80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88819e2df000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                             ^
 ffff88819e2df080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88819e2df100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000061
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff37da93ff8 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfbc ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000061
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff37da93ff8 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfbd ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000065
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe562048 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfbe ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000065
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea3e24c000 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfbf ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000065
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea3e24c000 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc0 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000069
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea47e7ddac CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc1 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000069
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea3e24c000 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc2 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000069
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea3e24c000 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc3 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e00006d
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea3e24c000 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc4 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e00006d
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea3e24c000 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc5 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e00006d
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea3e24c000 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc6 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000071
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555adda4e8 CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc7 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000071
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555adda4e8 CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc8 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000071
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555adda4e8 CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfc9 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010012
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000075
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555adda4e8 CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfca ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000075
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557d6604e8 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfcb ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000075
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557d6604e8 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfcc ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000079
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfcd ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000079
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfce ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000079
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfcf ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e00007d
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfd0 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e00007d
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfd1 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e00007d
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfd2 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000081
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfd3 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7940 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000081
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4842
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfd4 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 0 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7960 EFLAGS: 00010006
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000081
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffbe560f6c CR3: 0000000118e94000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4490
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4845
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff37f07d159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff37dab5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ff37f305090 RCX: 00007ff37f07d159
RDX: 0000000000001000 RSI: 0000200000000300 RDI: 000000000000000d
RBP: 00007ff37f114024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff37f305128 R14: 00007ff37f305090 R15: 00007ffdcbd35868
---[ end trace 7c04d6bca3edcfd5 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 8545 at kernel/trace/ring_buffer.c:4349 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Modules linked in:
CPU: 1 PID: 8545 Comm: syz.9.2089 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4348
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 2a 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 2c 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 79 af fd ff e9 45 fe ff ff e8 6f
RSP: 0018:ffffc90000cb7800 EFLAGS: 00010002
RAX: 1ffff11020030701 RBX: ffff888100052600 RCX: ffffffff81670524
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000cb7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000009e000085
R13: 1ffff11020057de3 R14: 1ffff11020057de6 R15: dffffc0000000000
FS:  00007ff37dab56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555adfd948 CR3: 0000000118e94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4562
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4762
 peek_next_entry kernel/trace/trace.c:3495 [inline]
 __find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3539
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/29 00:00 android13-5.10-lts 174d3ccb72b8 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/19 04:57 android13-5.10-lts e334a66065d3 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/18 06:38 android13-5.10-lts e334a66065d3 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/14 22:38 android13-5.10-lts e334a66065d3 6f9b3e89 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/14 22:38 android13-5.10-lts e334a66065d3 6f9b3e89 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/12 02:51 android13-5.10-lts dce28bf8c73c f8d35649 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/11 09:09 android13-5.10-lts dce28bf8c73c 508909ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/09 17:14 android13-5.10-lts 447db0046f21 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/07 11:00 android13-5.10-lts 9fe41ae8657d e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/07 11:00 android13-5.10-lts 9fe41ae8657d e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/04 20:26 android13-5.10-lts 0f73d4924a74 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/03 15:46 android13-5.10-lts 0f73d4924a74 6b7c9f71 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/02 07:27 android13-5.10-lts 50b3a256e550 e611ffe1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
* Struck through repros no longer work on HEAD.