audit: type=1400 audit(1756565726.696:12): avc: denied { write } for pid=4004 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
Oops: general protection fault, probably for non-canonical address 0xdffffc0002cf3360: 0000 [#1] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000016799b00-0x0000000016799b07]
CPU: 0 UID: 0 PID: 288 Comm: syz-executor.5 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
kmemleak: Automatic memory scanning thread ended
RIP: 0010:destroy_workqueue+0x5a2/0xa00
Code: 3f 0f 87 24 01 00 00 e8 0c 58 31 00 89 de 48 89 ef e8 52 6b fe ff 49 89 c7 48 85 c0 74 41 e8 f5 57 31 00 4c 89 fa 48 c1 ea 03 <42> 80 3c 22 00 0f 85 89 03 00 00 49 8b 3f e8 bb 50 7b 03 4c 89 ff
RSP: 0018:ffff888018eb7cb8 EFLAGS: 00010216
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8140fc07
RDX: 0000000002cf3360 RSI: ffffffff81428f8b RDI: 0000000000000005
RBP: ffff888047ef5000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffffff85852560 R14: ffffed1008fdea39 R15: 0000000016799b00
FS: 0000555595451400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f75446bf000 CR3: 000000004622f000 CR4: 0000000000350ef0
Call Trace:
ext4_put_super+0x106/0xf30
generic_shutdown_super+0x15a/0x4a0
kill_block_super+0x3b/0x90
ext4_kill_sb+0x6c/0xb0
deactivate_locked_super+0xbf/0x1a0
deactivate_super+0xb1/0xd0
cleanup_mnt+0x2df/0x430
task_work_run+0x172/0x280
exit_to_user_mode_loop+0xef/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3a00341f87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 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:00007fff030bd028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000001c RCX: 00007f3a00341f87
RDX: 00007fff030bd0f9 RSI: 000000000000000a RDI: 00007fff030bd0f0
RBP: 00007fff030bd0f0 R08: 00000000ffffffff R09: 00007fff030bcec0
R10: 0000555595452c7b R11: 0000000000000246 R12: 00007f3a0039a105
R13: 00007fff030be1b0 R14: 0000555595452c20 R15: 00007fff030be1f0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:destroy_workqueue+0x5a2/0xa00
Code: 3f 0f 87 24 01 00 00 e8 0c 58 31 00 89 de 48 89 ef e8 52 6b fe ff 49 89 c7 48 85 c0 74 41 e8 f5 57 31 00 4c 89 fa 48 c1 ea 03 <42> 80 3c 22 00 0f 85 89 03 00 00 49 8b 3f e8 bb 50 7b 03 4c 89 ff
RSP: 0018:ffff888018eb7cb8 EFLAGS: 00010216
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8140fc07
RDX: 0000000002cf3360 RSI: ffffffff81428f8b RDI: 0000000000000005
RBP: ffff888047ef5000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffffff85852560 R14: ffffed1008fdea39 R15: 0000000016799b00
FS: 0000555595451400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f75446bf000 CR3: 000000004622f000 CR4: 0000000000350ef0
BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:51
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 288, name: syz-executor.5
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
INFO: lockdep is turned off.
CPU: 0 UID: 0 PID: 288 Comm: syz-executor.5 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
Call Trace:
dump_stack_lvl+0xfa/0x120
__might_resched+0x2f3/0x510
exit_signals+0x25/0x940
do_exit+0x2db/0x2970
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f3a00341f87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 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:00007fff030bd028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000001c RCX: 00007f3a00341f87
RDX: 00007fff030bd0f9 RSI: 000000000000000a RDI: 00007fff030bd0f0
RBP: 00007fff030bd0f0 R08: 00000000ffffffff R09: 00007fff030bcec0
R10: 0000555595452c7b R11: 0000000000000246 R12: 00007f3a0039a105
R13: 00007fff030be1b0 R14: 0000555595452c20 R15: 00007fff030be1f0
------------[ cut here ]------------
Voluntary context switch within RCU read-side critical section!
WARNING: kernel/rcu/tree_plugin.h:332 at rcu_note_context_switch+0xa96/0x1b00, CPU#0: syz-executor.5/288
Modules linked in:
CPU: 0 UID: 0 PID: 288 Comm: syz-executor.5 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:rcu_note_context_switch+0xa96/0x1b00
Code: 00 00 00 65 48 8b 3d 41 8c 27 06 e8 84 11 fd ff e9 1a f8 ff ff c6 05 9a 42 e4 04 01 90 48 c7 c7 a0 8a c9 84 e8 0b 39 dd ff 90 <0f> 0b 90 90 e9 3a f6 ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea
RSP: 0018:ffff888018eb7a50 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff88806ce37d00 RCX: ffffffff8139de70
RDX: ffff8880156a5280 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c4801
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880156a5280
R13: 0000000000000000 R14: ffff8880156a5280 R15: ffff8880156a5280
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00f633000 CR3: 0000000041c72000 CR4: 0000000000350ef0
Call Trace:
__schedule+0x217/0x3590
schedule+0xdb/0x390
do_wait+0x32a/0x560
kernel_wait4+0x14e/0x260
zap_pid_ns_processes+0x2e6/0x6e0
do_exit+0x2289/0x2970
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f3a00341f87
Code: Unable to access opcode bytes at 0x7f3a00341f5d.
RSP: 002b:00007fff030bd028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000001c RCX: 00007f3a00341f87
RDX: 00007fff030bd0f9 RSI: 000000000000000a RDI: 00007fff030bd0f0
RBP: 00007fff030bd0f0 R08: 00000000ffffffff R09: 00007fff030bcec0
R10: 0000555595452c7b R11: 0000000000000246 R12: 00007f3a0039a105
R13: 00007fff030be1b0 R14: 0000555595452c20 R15: 00007fff030be1f0
irq event stamp: 203847
hardirqs last enabled at (203847): [] cond_local_irq_enable.isra.0+0x2e/0x40
hardirqs last disabled at (203846): [] exc_general_protection+0x32/0x330
softirqs last enabled at (203630): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (203579): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
audit: type=1326 audit(1756565727.433:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4005 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa327e10b19 code=0x0
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 0f 87 24 01 00 00 ja 0x12a
6: e8 0c 58 31 00 callq 0x315817
b: 89 de mov %ebx,%esi
d: 48 89 ef mov %rbp,%rdi
10: e8 52 6b fe ff callq 0xfffe6b67
15: 49 89 c7 mov %rax,%r15
18: 48 85 c0 test %rax,%rax
1b: 74 41 je 0x5e
1d: e8 f5 57 31 00 callq 0x315817
22: 4c 89 fa mov %r15,%rdx
25: 48 c1 ea 03 shr $0x3,%rdx
* 29: 42 80 3c 22 00 cmpb $0x0,(%rdx,%r12,1) <-- trapping instruction
2e: 0f 85 89 03 00 00 jne 0x3bd
34: 49 8b 3f mov (%r15),%rdi
37: e8 bb 50 7b 03 callq 0x37b50f7
3c: 4c 89 ff mov %r15,%rdi