RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bcc ]---
==================================================================
BUG: KASAN: use-after-free in rb_buffer_peek+0x71a/0x7a0 kernel/trace/ring_buffer.c:4747
Read of size 4 at addr ffff8881666cb06d by task syz.4.6941/27476
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4747
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
The buggy address belongs to the page:
page:ffffea000599b2c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x100 pfn:0x1666cb
flags: 0x4000000000000000(zone=1)
raw: 4000000000000000 ffffea000599b3c8 ffffea000599b1c8 0000000000000000
raw: 0000000000000100 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Movable, gfp_mask 0x100cca(GFP_HIGHUSER_MOVABLE), pid 25219, ts 1886305575027, free_ts 1979247541987
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2607
prep_new_page+0x1c/0x110 mm/page_alloc.c:2613
get_page_from_freelist+0x2c3a/0x2cd0 mm/page_alloc.c:4487
__alloc_pages+0x1a2/0x460 mm/page_alloc.c:5824
__alloc_pages_node include/linux/gfp.h:595 [inline]
alloc_pages_node include/linux/gfp.h:609 [inline]
alloc_pages include/linux/gfp.h:622 [inline]
shmem_alloc_page mm/shmem.c:1587 [inline]
shmem_alloc_and_acct_page+0x4a2/0x8d0 mm/shmem.c:1612
shmem_getpage_gfp+0x127d/0x2250 mm/shmem.c:1908
shmem_getpage mm/shmem.c:152 [inline]
shmem_write_begin+0xce/0x1b0 mm/shmem.c:2476
generic_perform_write+0x2b7/0x690 mm/filemap.c:3887
__generic_file_write_iter+0x268/0x490 mm/filemap.c:4015
generic_file_write_iter+0xa9/0x1d0 mm/filemap.c:4047
__kernel_write+0x521/0x970 fs/read_write.c:539
__dump_emit+0x255/0x380 fs/coredump.c:880
dump_emit+0x36a/0x3d0 fs/coredump.c:917
dump_user_range+0x86/0x1c0 fs/coredump.c:954
elf_core_dump+0x2aa4/0x2ff0 fs/binfmt_elf.c:2285
do_coredump+0x13c2/0x27d0 fs/coredump.c:831
page last free stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1474 [inline]
free_pcp_prepare mm/page_alloc.c:1546 [inline]
free_unref_page_prepare+0x5fa/0x600 mm/page_alloc.c:3536
free_unref_page_list+0x138/0x9e0 mm/page_alloc.c:3673
release_pages+0x1264/0x12c0 mm/swap.c:1015
__pagevec_release+0x71/0xe0 mm/swap.c:1035
pagevec_release include/linux/pagevec.h:81 [inline]
shmem_undo_range+0x564/0x13b0 mm/shmem.c:965
shmem_truncate_range mm/shmem.c:1064 [inline]
shmem_evict_inode+0x1dc/0x970 mm/shmem.c:1146
evict+0x4b6/0x8b0 fs/inode.c:650
iput_final fs/inode.c:1779 [inline]
iput+0x651/0x7e0 fs/inode.c:1805
dentry_unlink_inode+0x338/0x3e0 fs/dcache.c:380
__dentry_kill+0x45b/0x660 fs/dcache.c:586
shrink_dentry_list+0x38e/0x500 fs/dcache.c:1181
shrink_dcache_parent+0xa9/0x270 fs/dcache.c:-1
do_one_tree+0x27/0xe0 fs/dcache.c:1662
shrink_dcache_for_umount+0x6a/0x110 fs/dcache.c:1679
generic_shutdown_super+0x66/0x330 fs/super.c:447
kill_anon_super fs/super.c:1100 [inline]
kill_litter_super+0x77/0xa0 fs/super.c:1109
Memory state around the buggy address:
ffff8881666caf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff8881666caf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8881666cb000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff8881666cb080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff8881666cb100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07920 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000006666005d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556804d4e8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5021
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bcd ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000006666005d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556804d4e8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4669
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5024
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bce ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d077a0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07918 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660061
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556804d4e8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bcf ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07920 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660061
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000bff030 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5021
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd0 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660061
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000bff030 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4669
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5024
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd1 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d077a0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07918 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556d226948 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd2 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07920 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556d226948 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5021
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd3 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556d226948 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4669
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5024
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd4 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d077a0 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07918 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd5 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07920 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5021
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd6 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4669
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5024
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd7 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d077a0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07918 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000006666006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a39274d320 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd8 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07920 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000006666006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5021
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bd9 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000006666006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4669
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5024
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bda ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d077a0 EFLAGS: 00010012
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07918 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cc22e32f8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bdb ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07920 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cc22e32f8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5021
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bdc ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cc22e32f8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4669
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5024
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bdd ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d077a0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07918 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cc22e32f8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bde ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07920 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cc22e32f8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5021
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525bdf ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 0 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 0 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cc22e32f8 CR3: 00000001266d1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4669
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5024
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525be0 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d077a0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07918 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525be1 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07920 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07a98 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_consume+0x1aa/0x370 kernel/trace/ring_buffer.c:5021
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525be2 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d07940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07aa8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 0000000066660079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4669
ring_buffer_consume+0x1e7/0x370 kernel/trace/ring_buffer.c:5024
trace_consume kernel/trace/trace.c:4007 [inline]
tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6855
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: 0033:0x7f3cdad11559
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:00007f3cd976a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3cdaf98fa0 RCX: 00007f3cdad11559
RDX: 0000000000002020 RSI: 0000200000000280 RDI: 0000000000000003
RBP: 00007f3cd976a090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3cdaf99038 R14: 00007f3cdaf98fa0 R15: 00007ffcbb2da768
---[ end trace 86656d0aad525be3 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
WARNING: CPU: 1 PID: 27476 at kernel/trace/ring_buffer.c:4528 rb_get_reader_page+0xa68/0xc00 kernel/trace/ring_buffer.c:4527
Modules linked in:
CPU: 1 PID: 27476 Comm: syz.4.6941 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:4527
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ad 3d 3d 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 9c 3f 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:ffffc90000d077a0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff816c1ee4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90000d07918 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 000000006666007d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS: 00007f3cd976a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a3924eef98 CR3: 00000001266d1000 CR4: 00000000003506a0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4741
ring_buffer_peek+0x184/0x3b0 kernel/trace/ring_buffer.c:4941
peek_next_entry+0x141/0x200 kernel/trace/trace.c:3571
__find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3603
trace_find_next_entry_inc kernel/trace/trace.c:3996 [inline]
tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6831
vfs_read+0x28c/0xc20 fs/read_write.c:483
ksys_read+0x14a/0x260 fs/read_write.c:623