syzbot
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: 12d, last: 2d12h
Sample crash report:
RSP: 002b:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169819 ]---
==================================================================
BUG: KASAN: use-after-free in rb_buffer_peek+0x71a/0x7a0 kernel/trace/ring_buffer.c:4568
Read of size 4 at addr ffff88812472b06d by task syz.8.3404/10745
CPU: 1 PID: 10745 Comm: syz.8.3404 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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
The buggy address belongs to the page:
page:ffffea000491cac0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12472b
flags: 0x4000000000000000()
raw: 4000000000000000 ffffea000491cb08 ffffea000491ca88 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 7253, ts 243380484871, free_ts 361870161330
set_page_owner include/linux/page_owner.h:35 [inline]
post_alloc_hook mm/page_alloc.c:2456 [inline]
prep_new_page+0x176/0x190 mm/page_alloc.c:2462
get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254
__alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384
__vmalloc_area_node mm/vmalloc.c:-1 [inline]
__vmalloc_node_range+0x388/0x7a0 mm/vmalloc.c:2629
vmalloc_user+0x73/0x80 mm/vmalloc.c:2758
kcov_mmap+0x2b/0x130 kernel/kcov.c:465
call_mmap include/linux/fs.h:2071 [inline]
mmap_file+0x60/0xb0 mm/util.c:1085
__mmap_region mm/mmap.c:1884 [inline]
mmap_region+0x11fd/0x19c0 mm/mmap.c:3075
do_mmap+0x85f/0xf50 mm/mmap.c:1661
vm_mmap_pgoff+0x1f4/0x350 mm/util.c:543
ksys_mmap_pgoff+0x16f/0x1e0 mm/mmap.c:1712
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:95 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__x64_sys_mmap+0xfa/0x110 arch/x86/kernel/sys_x86_64.c:86
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
page last free stack trace:
reset_page_owner include/linux/page_owner.h:28 [inline]
free_pages_prepare mm/page_alloc.c:1349 [inline]
free_pcp_prepare mm/page_alloc.c:1421 [inline]
free_unref_page_prepare+0x2b7/0x2d0 mm/page_alloc.c:3336
free_unref_page mm/page_alloc.c:3391 [inline]
free_the_page mm/page_alloc.c:5443 [inline]
__free_pages+0x146/0x390 mm/page_alloc.c:5454
__vunmap+0x801/0x980 mm/vmalloc.c:2307
__vfree mm/vmalloc.c:2356 [inline]
vfree+0x61/0x90 mm/vmalloc.c:2387
kcov_put kernel/kcov.c:408 [inline]
kcov_close+0x2b/0x50 kernel/kcov.c:510
__fput+0x2dc/0x730 fs/file_table.c:281
____fput+0x15/0x20 fs/file_table.c:314
task_work_run+0x127/0x190 kernel/task_work.c:189
exit_task_work include/linux/task_work.h:33 [inline]
do_exit+0xa7c/0x24e0 kernel/exit.c:873
do_group_exit+0x149/0x310 kernel/exit.c:987
__do_sys_exit_group kernel/exit.c:998 [inline]
__se_sys_exit_group kernel/exit.c:996 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:996
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Memory state around the buggy address:
ffff88812472af00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88812472af80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88812472b000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff88812472b080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88812472b100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c005d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dc18ff8 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016981a ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c005d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dc18ff8 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016981b ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7800 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0061
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016981c ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0061
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016981d ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0061
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016981e ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7800 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016981f ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169820 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169821 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7800 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169822 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169823 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169824 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7800 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169825 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169826 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169827 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7800 EFLAGS: 00010012
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169828 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169829 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016982a ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7800 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78eb271d58 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016982b ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9bd12a990 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016982c ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9bd12a990 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016982d ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7800 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9bd12a990 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016982e ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9bd12a990 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e7016982f ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c0079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9bd12a990 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169830 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7800 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7978 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c007d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9bd12a990 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169831 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c007d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9bd12a990 CR3: 00000001158ee000 CR4: 00000000003526a0
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: 0033:0x7fe9be6d10d9
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:00007fe9bd0e8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe9be959180 RCX: 00007fe9be6d10d9
RDX: 0000000000002028 RSI: 0000200000004500 RDI: 0000000000000007
RBP: 00007fe9be768024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9be959218 R14: 00007fe9be959180 R15: 00007fff2de209d8
---[ end trace 9ef9f18e70169832 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 10745 at kernel/trace/ring_buffer.c:4349 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 10745 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: 10745 Comm: syz.8.3404 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 fd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 ec 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90000ce7960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f344
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000ce7ac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000246c007d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007fe9bd0e86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9bd12a990 CR3: 00000001158ee000 CR4: 00000000003526a0
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
Struck through repros no longer work on HEAD.