R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f732596d038 R14: 00007f732596cfa0 R15: 00007ffd9a3940a8
---[ end trace c7dead8856dd5fcd ]---
==================================================================
BUG: KASAN: slab-out-of-bounds in rb_buffer_peek+0x71a/0x7a0 kernel/trace/ring_buffer.c:4746
Read of size 4 at addr ffff88810006c040 by task syz.3.1098/2971
CPU: 0 PID: 2971 Comm: syz.3.1098 Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:427 [inline]
kasan_report+0x10f/0x150 mm/kasan/report.c:444
__asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
rb_buffer_peek+0x71a/0x7a0 kernel/trace/ring_buffer.c:4746
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4940
peek_next_entry kernel/trace/trace.c:3571 [inline]
__find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3615
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6821
vfs_read+0x28c/0xc20 fs/read_write.c:483
ksys_read+0x14a/0x260 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
x64_sys_call+0x96d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f73256e50d9
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:00007f732413e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f732596cfa0 RCX: 00007f73256e50d9
RDX: 0000000000002000 RSI: 0000200000001000 RDI: 0000000000000003
RBP: 00007f732577c024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f732596d038 R14: 00007f732596cfa0 R15: 00007ffd9a3940a8
Allocated by task 0:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:433 [inline]
__kasan_slab_alloc+0xb7/0xe0 mm/kasan/common.c:466
kasan_slab_alloc include/linux/kasan.h:217 [inline]
slab_post_alloc_hook+0x4f/0x2b0 mm/slab.h:550
slab_alloc_node mm/slub.c:3245 [inline]
slab_alloc mm/slub.c:3255 [inline]
kmem_cache_alloc+0xf7/0x260 mm/slub.c:3260
kmem_cache_alloc_node include/linux/slab.h:492 [inline]
init_kmem_cache_nodes mm/slub.c:4002 [inline]
kmem_cache_open mm/slub.c:4245 [inline]
__kmem_cache_create+0x184/0x640 mm/slub.c:4921
create_cache mm/slab_common.c:265 [inline]
kmem_cache_create_usercopy+0x155/0x2b0 mm/slab_common.c:367
kmem_cache_create+0x13/0x20 mm/slab_common.c:422
avtab_cache_init+0x24/0x50 security/selinux/ss/avtab.c:673
selinux_init+0x164/0x260 security/selinux/hooks.c:7470
initialize_lsm+0x8d/0x140 security/security.c:240
ordered_lsm_init+0x331/0x390 security/security.c:364
security_init+0xad/0xc0 security/security.c:410
start_kernel+0x422/0x4e0 init/main.c:1136
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:527
x86_64_start_kernel+0x5b/0x60 arch/x86/kernel/head64.c:508
secondary_startup_64_no_verify+0xb1/0xbb
The buggy address belongs to the object at ffff88810006c000
which belongs to the cache kmem_cache_node of size 64
The buggy address is located 0 bytes to the right of
64-byte region [ffff88810006c000, ffff88810006c040)
The buggy address belongs to the page:
page:ffffea0004001b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10006c
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 0000000000000000 dead000000000122 ffff888100042180
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x0(), pid 1, ts 1321836565, free_ts 0
create_dummy_stack mm/page_owner.c:60 [inline]
register_early_stack+0x95/0xf0 mm/page_owner.c:76
init_page_owner+0x32/0x830 mm/page_owner.c:86
invoke_init_callbacks mm/page_ext.c:116 [inline]
page_ext_init+0x371/0x3a0 mm/page_ext.c:510
kernel_init_freeable+0x293/0x3d0 init/main.c:1629
page_owner free stack trace missing
Memory state around the buggy address:
ffff88810006bf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88810006bf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88810006c000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
^
ffff88810006c080: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
ffff88810006c100: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
==================================================================
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Modules linked in:
CPU: 0 PID: 2971 Comm: syz.3.1098 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+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 dd 2e 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 cc 30 3d 00 f0 ff 43 08 <0f> 0b 4c 8b 64 24 38 4d 85 e4 74 3d 43 0f b6 44 3d 00 84 c0 0f 85
RSP: 0018:ffffc90000bc7920 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816bf854
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000bc7a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000000001030
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f732413e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f73257327c0 CR3: 0000000110c7d000 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:4740
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5020
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6845
vfs_read+0x28c/0xc20 fs/read_write.c:483
ksys_read+0x14a/0x260 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
x64_sys_call+0x96d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f73256e50d9
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:00007f732413e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f732596cfa0 RCX: 00007f73256e50d9
RDX: 0000000000002000 RSI: 0000200000001000 RDI: 0000000000000003
RBP: 00007f732577c024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f732596d038 R14: 00007f732596cfa0 R15: 00007ffd9a3940a8
---[ end trace c7dead8856dd5fce ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Modules linked in:
CPU: 0 PID: 2971 Comm: syz.3.1098 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+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 dd 2e 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 cc 30 3d 00 f0 ff 43 08 <0f> 0b 4c 8b 64 24 38 4d 85 e4 74 3d 43 0f b6 44 3d 00 84 c0 0f 85
RSP: 0018:ffffc90000bc7940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816bf854
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000bc7aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000000001030
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f732413e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f73257327c0 CR3: 0000000110c7d000 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:4668
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5023
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6845
vfs_read+0x28c/0xc20 fs/read_write.c:483
ksys_read+0x14a/0x260 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
x64_sys_call+0x96d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f73256e50d9
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:00007f732413e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f732596cfa0 RCX: 00007f73256e50d9
RDX: 0000000000002000 RSI: 0000200000001000 RDI: 0000000000000003
RBP: 00007f732577c024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f732596d038 R14: 00007f732596cfa0 R15: 00007ffd9a3940a8
---[ end trace c7dead8856dd5fcf ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Modules linked in:
CPU: 0 PID: 2971 Comm: syz.3.1098 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+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 dd 2e 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 cc 30 3d 00 f0 ff 43 08 <0f> 0b 4c 8b 64 24 38 4d 85 e4 74 3d 43 0f b6 44 3d 00 84 c0 0f 85
RSP: 0018:ffffc90000bc77e0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816bf854
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000bc7958 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000c9e01035
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f732413e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed1eff8 CR3: 0000000110c7d000 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:4740
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4940
peek_next_entry kernel/trace/trace.c:3571 [inline]
__find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3615
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6821
vfs_read+0x28c/0xc20 fs/read_write.c:483
ksys_read+0x14a/0x260 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
x64_sys_call+0x96d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f73256e50d9
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:00007f732413e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f732596cfa0 RCX: 00007f73256e50d9
RDX: 0000000000002000 RSI: 0000200000001000 RDI: 0000000000000003
RBP: 00007f732577c024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f732596d038 R14: 00007f732596cfa0 R15: 00007ffd9a3940a8
---[ end trace c7dead8856dd5fd0 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Modules linked in:
CPU: 0 PID: 2971 Comm: syz.3.1098 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+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 dd 2e 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 cc 30 3d 00 f0 ff 43 08 <0f> 0b 4c 8b 64 24 38 4d 85 e4 74 3d 43 0f b6 44 3d 00 84 c0 0f 85
RSP: 0018:ffffc90000bc7920 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816bf854
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000bc7a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000c9e01035
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f732413e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed1dff8 CR3: 0000000110c7d000 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:4740
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5020
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6845
vfs_read+0x28c/0xc20 fs/read_write.c:483
ksys_read+0x14a/0x260 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
x64_sys_call+0x96d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f73256e50d9
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:00007f732413e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f732596cfa0 RCX: 00007f73256e50d9
RDX: 0000000000002000 RSI: 0000200000001000 RDI: 0000000000000003
RBP: 00007f732577c024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f732596d038 R14: 00007f732596cfa0 R15: 00007ffd9a3940a8
---[ end trace c7dead8856dd5fd1 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Modules linked in:
CPU: 0 PID: 2971 Comm: syz.3.1098 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+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 dd 2e 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 cc 30 3d 00 f0 ff 43 08 <0f> 0b 4c 8b 64 24 38 4d 85 e4 74 3d 43 0f b6 44 3d 00 84 c0 0f 85
RSP: 0018:ffffc90000bc7940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816bf854
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000bc7aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000c9e01035
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f732413e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed1dff8 CR3: 0000000110c7d000 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:4668
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5023
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6845
vfs_read+0x28c/0xc20 fs/read_write.c:483
ksys_read+0x14a/0x260 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
x64_sys_call+0x96d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f73256e50d9
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:00007f732413e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f732596cfa0 RCX: 00007f73256e50d9
RDX: 0000000000002000 RSI: 0000200000001000 RDI: 0000000000000003
RBP: 00007f732577c024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f732596d038 R14: 00007f732596cfa0 R15: 00007ffd9a3940a8
---[ end trace c7dead8856dd5fd2 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 2971 at kernel/trace/ring_buffer.c:4527 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Modules linked in:
CPU: 0 PID: 2971 Comm: syz.3.1098 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+0xa68/0xc00 kernel/trace/ring_buffer.c:4526
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 dd 2e 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 cc 30 3d 00 f0 ff 43 08 <0f> 0b 4c 8b 64 24 38 4d 85 e4 74 3d 43 0f b6 44 3d 00 84 c0 0f 85
RSP: 0018:ffffc90000bc77e0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816bf854
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000bc7958 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000c9e01039
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f732413e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed1dff8 CR3: 0000000110c7d000 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:4740
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4940
peek_next_entry kernel/trace/trace.c:3571 [inline]
__find_next_entry+0x34d/0x6b0 kernel/trace/trace.c:3615
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6821
vfs_read+0x28c/0xc20 fs/read_write.c:483
ksys_read+0x14a/0x260 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
x64_sys_call+0x96d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f73256e50d9
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:00007f732413e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f732596cfa0 RCX: 00007f73256e50d9
RDX: 0000000000002000 RSI: 0000200000001000 RDI: 0000000000000003
RBP: 00007f732577c024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f732596d038 R14: 00007f732596cfa0 R15: 00007ffd9a3940a8
---[ end trace c7dead8856dd5fd3 ]---