------------[ cut here ]------------
WARNING: CPU: 1 PID: 6844 at kernel/trace/ring_buffer.c:3525 check_buffer+0x88a/0x930 kernel/trace/ring_buffer.c:3525
Modules linked in:
CPU: 1 PID: 6844 Comm: syz.5.828 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:check_buffer+0x88a/0x930 kernel/trace/ring_buffer.c:3525
Code: 4c 89 ee e8 48 b3 a6 08 48 c7 c7 20 34 cb 97 be 04 00 00 00 e8 57 50 4e 00 f0 ff 0d 60 b6 45 16 e9 91 fe ff ff e8 d6 ea fc ff <0f> 0b e9 e2 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 20 f8 ff
RSP: 0018:ffffc900033479d0 EFLAGS: 00010283
RAX: ffffffff81857dca RBX: 0000000000000003 RCX: 0000000000080000
RDX: ffffc90003f19000 RSI: 0000000000000044 RDI: 0000000000000045
RBP: ffffc90003347b88 R08: ffff888019218007 R09: 1ffff11003243000
R10: dffffc0000000000 R11: ffffed1003243001 R12: 0000001bf233e515
R13: 0000000000000060 R14: ffff888019218000 R15: dffffc0000000000
FS:  00007fe49cd826c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2907b53000 CR3: 000000003057c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __rb_reserve_next+0x4d9/0xd00 kernel/trace/ring_buffer.c:3621
 rb_reserve_next_event kernel/trace/ring_buffer.c:3756 [inline]
 ring_buffer_lock_reserve+0xafa/0xf10 kernel/trace/ring_buffer.c:3815
 __trace_buffer_lock_reserve kernel/trace/trace.c:956 [inline]
 tracing_mark_write+0x1f6/0x840 kernel/trace/trace.c:7251
 vfs_write+0x2dc/0x9a0 fs/read_write.c:582
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe49bfa94d9
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:00007fe49cd82028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe49c225fa0 RCX: 00007fe49bfa94d9
RDX: 0000000000000005 RSI: 0000200000000440 RDI: 0000000000000003
RBP: 00007fe49c03804e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe49c226038 R14: 00007fe49c225fa0 R15: 00007ffccf0c9518
 </TASK>