KASAN: use-after-free Read in ring_buffer_peek

Status: premoderation: reported on 2026/08/02 07:28
Reported-by: syzbot+7c4dc8a4b8ab4d38587e@syzkaller.appspotmail.com
First crash: 4d04h, last: 1d15h
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-6-1 KASAN: slab-out-of-bounds Read in ring_buffer_peek 19 2 6d11h 7d01h 0/2 premoderation: reported on 2026/07/30 09:52
android-5-15 KASAN: use-after-free Read in ring_buffer_peek 19 syz, C 8 6d18h 6d22h 0/2 upstream: reported C repro on 2026/07/30 13:32

Sample crash report:
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a96202900895 ]---
==================================================================
BUG: KASAN: use-after-free in rb_buffer_peek+0x71a/0x7a0 kernel/trace/ring_buffer.c:4567
Read of size 4 at addr ffff8881be06b071 by task syz.6.414/1856

CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x100/0x140 mm/kasan/report.c:452
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
 rb_buffer_peek+0x71a/0x7a0 kernel/trace/ring_buffer.c:4567
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78

The buggy address belongs to the page:
page:ffffea0006f81ac0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1be06b
flags: 0x4000000000000000()
raw: 4000000000000000 ffffea0006f81ac8 ffffea0006f81ac8 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffff8881be06af00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881be06af80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8881be06b000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                             ^
 ffff8881be06b080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881be06b100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000061
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2c6878 CR3: 000000011a3fd000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a96202900896 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000061
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2c6878 CR3: 000000011a3fd000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a96202900897 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f7c0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6f938 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2c6878 CR3: 000000011a3fd000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a96202900898 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011a3fd000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a96202900899 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000065
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011a3fd000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a9620290089a ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f7c0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6f938 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555c47d908 CR3: 000000011a3fd000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a9620290089b ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffed942df80 CR3: 000000011a3fd000 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:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a9620290089c ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000069
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffed942df80 CR3: 000000011a3fd000 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:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a9620290089d ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f7c0 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6f938 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be00006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555567966948 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a9620290089e ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be00006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555567966948 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a9620290089f ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be00006d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555567966948 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a0 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f7c0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6f938 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f60eaad92f8 CR3: 000000011a3fd000 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:4561
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a1 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f60eaad92f8 CR3: 000000011a3fd000 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:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a2 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000071
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f60eaad92f8 CR3: 000000011a3fd000 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:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a3 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f7c0 EFLAGS: 00010012
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6f938 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2af7ff3000 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a4 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f60eaad92f8 CR3: 000000011a3fd000 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:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a5 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000075
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f60eaad92f8 CR3: 000000011a3fd000 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:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a6 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f7c0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6f938 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2af7ff3000 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a7 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557104e4e8 CR3: 000000011a3fd000 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:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a8 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 0 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 0 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000079
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557104e4e8 CR3: 000000011a3fd000 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:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008a9 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f7c0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6f938 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be00007d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2af7ff3000 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008aa ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be00007d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2af7ff3000 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008ab ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be00007d
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2af7ff3000 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008ac ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f7c0 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6f938 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000081
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2af7ff3000 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_peek+0x183/0x360 kernel/trace/ring_buffer.c:4761
 peek_next_entry+0x141/0x200 kernel/trace/trace.c:3495
 __find_next_entry+0x534/0x6b0 kernel/trace/trace.c:3527
 trace_find_next_entry_inc kernel/trace/trace.c:3619 [inline]
 tracing_read_pipe+0x3b8/0xab0 kernel/trace/trace.c:6410
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008ad ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f940 EFLAGS: 00010002
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fab8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000081
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2af7ff3000 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_buffer_peek+0x60/0x7a0 kernel/trace/ring_buffer.c:4561
 ring_buffer_consume+0x1b2/0x350 kernel/trace/ring_buffer.c:4841
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008ae ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Code: 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 cd 27 38 00 48 8b 1b 48 8d 7b 08 be 04 00 00 00 e8 bc 29 38 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 75 91 e8 89 b2 fd ff e9 45 fe ff ff e8 7f
RSP: 0018:ffffc90001c6f960 EFLAGS: 00010006
RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8166f0e4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608
RBP: ffffc90001c6fac8 R08: ffff88810005260b R09: 1ffff1102000a4c1
R10: dffffc0000000000 R11: ffffed102000a4c2 R12: 00000000be000081
R13: 1ffff1102000a123 R14: 1ffff1102000a126 R15: dffffc0000000000
FS:  00007fbe848056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2af7ff3000 CR3: 000000011a3fd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rb_advance_reader+0x2b/0x6b0 kernel/trace/ring_buffer.c:4489
 ring_buffer_consume+0x1e6/0x350 kernel/trace/ring_buffer.c:4844
 trace_consume kernel/trace/trace.c:3630 [inline]
 tracing_read_pipe+0x599/0xab0 kernel/trace/trace.c:6434
 vfs_read+0x209/0xa50 fs/read_write.c:494
 ksys_read+0x14a/0x260 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fbe85dac019
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:00007fbe84805028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fbe86033fa0 RCX: 00007fbe85dac019
RDX: 0000000000002020 RSI: 0000200000001500 RDI: 0000000000000003
RBP: 00007fbe85e4300c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe86034038 R14: 00007fbe86033fa0 R15: 00007ffef0ef4e78
---[ end trace f744a962029008af ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 arch_atomic_inc include/linux/instrumented.h:101 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 atomic_inc include/asm-generic/atomic-instrumented.h:241 [inline]
WARNING: CPU: 1 PID: 1856 at kernel/trace/ring_buffer.c:4348 rb_get_reader_page+0xa78/0xbf0 kernel/trace/ring_buffer.c:4347
Modules linked in:
CPU: 1 PID: 1856 Comm: syz.6.414 Tainted: G    B   W         syzkaller #0

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/04 20:26 android13-5.10-lts 0f73d4924a74 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/03 15:46 android13-5.10-lts 0f73d4924a74 6b7c9f71 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
2026/08/02 07:27 android13-5.10-lts 50b3a256e550 e611ffe1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 KASAN: use-after-free Read in ring_buffer_peek
* Struck through repros no longer work on HEAD.