Oops: general protection fault, probably for non-canonical address 0xdffffc0020000032: 0000 [#1] SMP KASAN NOPTI
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
KASAN: probably user-memory-access in range [0x0000000100000190-0x0000000100000197]
CPU: 1 UID: 0 PID: 3998 Comm: kworker/R-ext4- Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
ext4 filesystem being mounted at /syzkaller-testdir104339772/syzkaller.BQV1pQ/3/file0 supports timestamps until 2038-01-19 (0x7fffffff)
RIP: 0010:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff8880473a7800 EFLAGS: 00010212
RAX: 0000000020000032 RBX: 00000000ffffffa0 RCX: 0000000000000002
RDX: ffff888016d7d280 RSI: ffffffff818995b7 RDI: 0000000100000190
RBP: ffff8880473a7a70 R08: ffff88806cf31340 R09: ffffe8ffffd16a50
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000001c R14: ffff88806cf31340 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2cc99f6544 CR3: 000000001e4c1000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_contention_begin+0x235/0x3e0
trace_contention_begin+0xae/0x110
__mutex_lock+0x14b/0x1020
rescuer_thread+0xca/0xd60
kthread+0x3c8/0x740
ret_from_fork+0x34b/0x430
ret_from_fork_asm+0x1a/0x30
Modules linked in:
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
---[ end trace 0000000000000000 ]---
RIP: 0010:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff8880473a7800 EFLAGS: 00010212
RAX: 0000000020000032 RBX: 00000000ffffffa0 RCX: 0000000000000002
RDX: ffff888016d7d280 RSI: ffffffff818995b7 RDI: 0000000100000190
RBP: ffff8880473a7a70 R08: ffff88806cf31340 R09: ffffe8ffffd16a50
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000001c R14: ffff88806cf31340 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2cc99f6544 CR3: 000000001e4c1000 CR4: 0000000000350ef0
note: kworker/R-ext4-[3998] exited with preempt_count 2
Oops: general protection fault, probably for non-canonical address 0xdffffc0020000001: 0000 [#2] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000100000008-0x000000010000000f]
CPU: 1 UID: 0 PID: 3986 Comm: syz-executor.7 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:perf_trace_add+0x21b/0x340
Code: 00 0f 85 3a 01 00 00 4c 89 75 00 4d 85 ed 74 2a e8 da b2 f5 ff 49 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 df 00 00 00 4d 89 75 08 eb 03 45 31 e4 e8 ad b2
RSP: 0018:ffff8880481af418 EFLAGS: 00010012
RAX: dffffc0000000000 RBX: ffff888017264b00 RCX: ffffffff817e33ce
RDX: 0000000020000001 RSI: ffffffff817e34a6 RDI: 0000000100000008
RBP: ffffe8ffffd16a50 R08: ffffffff85ca3e40 R09: ffffed1009035eca
R10: 0000000000000000 R11: 1ffff1100d9e6f7b R12: 0000000000000000
R13: 0000000100000000 R14: ffff888017264b60 R15: ffff888017264b98
FS: 00007fd406b8f700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2cc99f6544 CR3: 000000000e0e5000 CR4: 0000000000350ef0
Call Trace:
event_sched_in+0x446/0xb60
merge_sched_in+0xb4d/0x1810
visit_groups_merge.constprop.0.isra.0+0x8d1/0x1150
ctx_sched_in+0x579/0x9b0
perf_event_sched_in+0x5d/0x90
__perf_event_task_sched_in+0x2ec/0x5e0
finish_task_switch.isra.0+0x410/0x840
__schedule+0xe86/0x3590
schedule+0xdb/0x390
start_this_handle+0x601/0x12d0
jbd2__journal_start+0x393/0x6b0
__ext4_journal_start_sb+0x325/0x5d0
__ext4_new_inode+0x2cbe/0x4d70
ext4_create+0x2e2/0x4e0
vfs_create+0x4e7/0x7a0
do_mknodat+0x4ad/0x560
__x64_sys_mknod+0x87/0xb0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd409619b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd406b8f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007fd40972cf60 RCX: 00007fd409619b19
RDX: 000000000000070f RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007fd409673f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5be4860f R14: 00007fd406b8f300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff8880473a7800 EFLAGS: 00010212
RAX: 0000000020000032 RBX: 00000000ffffffa0 RCX: 0000000000000002
RDX: ffff888016d7d280 RSI: ffffffff818995b7 RDI: 0000000100000190
RBP: ffff8880473a7a70 R08: ffff88806cf31340 R09: ffffe8ffffd16a50
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000001c R14: ffff88806cf31340 R15: dffffc0000000000
FS: 00007fd406b8f700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2cc99f6544 CR3: 000000000e0e5000 CR4: 0000000000350ef0
note: syz-executor.7[3986] exited with irqs disabled
----------------
Code disassembly (best guess), 1 bytes skipped:
0: df 48 89 fisttps -0x77(%rax)
3: 85 a8 fd ff ff 48 test %ebp,0x48fffffd(%rax)
9: c1 e8 03 shr $0x3,%eax
c: 4c 01 e0 add %r12,%rax
f: 48 89 85 c8 fd ff ff mov %rax,-0x238(%rbp)
16: e8 c9 51 ea ff callq 0xffea51e4
1b: 48 8d bb f0 01 00 00 lea 0x1f0(%rbx),%rdi
22: 48 89 f8 mov %rdi,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 74 08 je 0x3a
32: 3c 03 cmp $0x3,%al
34: 0f 8e c5 0b 00 00 jle 0xbff
3a: 44 rex.R
3b: 8b .byte 0x8b
3c: ab stos %eax,%es:(%rdi)
3d: f0 lock
3e: 01 .byte 0x1