Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 285 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
RIP: 0010:__queue_work+0x202/0x1240
Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24
RSP: 0018:ffff888014317680 EFLAGS: 00010056
RAX: 0000000000000000 RBX: ffff88800dc8a618 RCX: ffffffff8141f51d
RDX: ffff888014248000 RSI: ffffffff8141ef2b RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000001 R09: fffffbfff0f11ef4
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000001 R15: ffff8880476ac800
FS: 000055556d964400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefbeb109b0 CR3: 0000000045bf0000 CR4: 0000000000350ef0
Call Trace:
queue_work_on+0xd0/0xe0
loop_queue_rq+0x5c8/0x1180
__blk_mq_issue_directly+0xd5/0x260
blk_mq_request_issue_directly+0x11c/0x1e0
blk_mq_issue_direct+0x192/0x640
blk_mq_dispatch_queue_requests+0x4b0/0x7c0
blk_mq_flush_plug_list+0x1ec/0x5b0
__blk_flush_plug+0x25c/0x460
__submit_bio+0x480/0x5b0
submit_bio_noacct_nocheck+0x68e/0xcb0
submit_bio_noacct+0x359/0x1350
ext4_commit_super+0x297/0x4a0
ext4_put_super+0x58a/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: 0033:0x7f100d323f87
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:00007ffddd62ea28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000f RCX: 00007f100d323f87
RDX: 00007ffddd62eaf9 RSI: 000000000000000a RDI: 00007ffddd62eaf0
RBP: 00007ffddd62eaf0 R08: 00000000ffffffff R09: 00007ffddd62e8c0
R10: 000055556d965c7b R11: 0000000000000246 R12: 00007f100d37c105
R13: 00007ffddd62fbb0 R14: 000055556d965c20 R15: 00007ffddd62fbf0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0x202/0x1240
Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24
RSP: 0018:ffff888014317680 EFLAGS: 00010056
RAX: 0000000000000000 RBX: ffff88800dc8a618 RCX: ffffffff8141f51d
RDX: ffff888014248000 RSI: ffffffff8141ef2b RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000001 R09: fffffbfff0f11ef4
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000001 R15: ffff8880476ac800
FS: 000055556d964400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefbeb109b0 CR3: 0000000045bf0000 CR4: 0000000000350ef0
note: syz-executor.5[285] exited with irqs disabled
note: syz-executor.5[285] exited with preempt_count 1
------------[ cut here ]------------
WARNING: kernel/exit.c:898 at do_exit+0x1c36/0x2970, CPU#1: syz-executor.5/285
Modules linked in:
CPU: 1 UID: 0 PID: 285 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:do_exit+0x1c36/0x2970
Code: 96 0a 00 00 c7 43 18 00 00 00 00 e9 21 e6 ff ff e8 bf a4 38 00 bf 02 24 00 00 e8 f5 ab 0b 00 e9 41 ff ff ff e8 ab a4 38 00 90 <0f> 0b 90 e9 87 e4 ff ff e8 9d a4 38 00 4c 89 e6 bf 05 06 00 00 e8
RSP: 0018:ffff888014317e40 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffffffff813b2727
RDX: ffff888014248000 RSI: ffffffff813b42d5 RDI: ffff8880142491e8
RBP: ffff888014248000 R08: 0000000000000001 R09: fffffbfff0f11cd8
R10: 0000000000000200 R11: 0000000000000001 R12: 000000000000000b
R13: 0000000000002710 R14: dffffc0000000000 R15: 0000000000000000
FS: 000055556d964400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefbeb109b0 CR3: 0000000045bf0000 CR4: 0000000000350ef0
Call Trace:
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f100d323f87
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:00007ffddd62ea28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000f RCX: 00007f100d323f87
RDX: 00007ffddd62eaf9 RSI: 000000000000000a RDI: 00007ffddd62eaf0
RBP: 00007ffddd62eaf0 R08: 00000000ffffffff R09: 00007ffddd62e8c0
R10: 000055556d965c7b R11: 0000000000000246 R12: 00007f100d37c105
R13: 00007ffddd62fbb0 R14: 000055556d965c20 R15: 00007ffddd62fbf0
irq event stamp: 167932
hardirqs last enabled at (167931): [] _raw_spin_unlock_irq+0x23/0x40
hardirqs last disabled at (167932): [] _raw_spin_lock_irq+0x42/0x50
softirqs last enabled at (167906): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (167891): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:51
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 285, name: syz-executor.5
preempt_count: 0, expected: 0
RCU nest depth: 2, expected: 0
INFO: lockdep is turned off.
CPU: 1 UID: 0 PID: 285 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: 0033:0x7f100d323f87
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:00007ffddd62ea28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000f RCX: 00007f100d323f87
RDX: 00007ffddd62eaf9 RSI: 000000000000000a RDI: 00007ffddd62eaf0
RBP: 00007ffddd62eaf0 R08: 00000000ffffffff R09: 00007ffddd62e8c0
R10: 000055556d965c7b R11: 0000000000000246 R12: 00007f100d37c105
R13: 00007ffddd62fbb0 R14: 000055556d965c20 R15: 00007ffddd62fbf0
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#2] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 UID: 0 PID: 285 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:__blk_flush_plug+0x11d/0x460
Code: f9 06 3b ff 48 8b 44 24 08 4c 8b 6c 24 58 49 8b 56 30 80 38 00 0f 85 03 03 00 00 48 8d 7a 08 4d 8b 66 38 48 89 f9 48 c1 e9 03 <42> 80 3c 39 00 0f 85 02 03 00 00 48 89 5a 08 48 89 54 24 58 4c 89
RSP: 0018:ffff888014317af0 EFLAGS: 00010212
RAX: ffffed1002862f64 RBX: ffff888014317b48 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8238e087 RDI: 0000000000000008
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff8643ac57 R11: ffff888018bf9a10 R12: 9241db5b0848a500
R13: ffff888014317b48 R14: ffff888014317ae8 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdede270718 CR3: 0000000042edf000 CR4: 0000000000350ef0
Call Trace:
schedule+0x2b9/0x390
synchronize_rcu_expedited+0x353/0x420
namespace_unlock+0x4b6/0x810
put_mnt_ns+0xf5/0x120
free_nsproxy+0x3a/0x400
switch_task_namespaces+0xe2/0x100
do_exit+0x841/0x2970
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f100d323f87
Code: Unable to access opcode bytes at 0x7f100d323f5d.
RSP: 002b:00007ffddd62ea28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000f RCX: 00007f100d323f87
RDX: 00007ffddd62eaf9 RSI: 000000000000000a RDI: 00007ffddd62eaf0
RBP: 00007ffddd62eaf0 R08: 00000000ffffffff R09: 00007ffddd62e8c0
R10: 000055556d965c7b R11: 0000000000000246 R12: 00007f100d37c105
R13: 00007ffddd62fbb0 R14: 000055556d965c20 R15: 00007ffddd62fbf0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0x202/0x1240
Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24
RSP: 0018:ffff888014317680 EFLAGS: 00010056
RAX: 0000000000000000 RBX: ffff88800dc8a618 RCX: ffffffff8141f51d
RDX: ffff888014248000 RSI: ffffffff8141ef2b RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000001 R09: fffffbfff0f11ef4
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000001 R15: ffff8880476ac800
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdede270718 CR3: 0000000042edf000 CR4: 0000000000350ef0
Fixing recursive fault but reboot is needed!
BUG: scheduling while atomic: syz-executor.5/285/0x00000000
INFO: lockdep is turned off.
Modules linked in:
CPU: 0 UID: 0 PID: 285 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
__schedule_bug+0xb9/0x100
__schedule+0x24f3/0x3590
do_task_dead+0xdc/0x110
make_task_dead+0x373/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f100d323f87
Code: Unable to access opcode bytes at 0x7f100d323f5d.
RSP: 002b:00007ffddd62ea28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000f RCX: 00007f100d323f87
RDX: 00007ffddd62eaf9 RSI: 000000000000000a RDI: 00007ffddd62eaf0
RBP: 00007ffddd62eaf0 R08: 00000000ffffffff R09: 00007ffddd62e8c0
R10: 000055556d965c7b R11: 0000000000000246 R12: 00007f100d37c105
R13: 00007ffddd62fbb0 R14: 000055556d965c20 R15: 00007ffddd62fbf0
------------[ 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.5/285
Modules linked in:
CPU: 0 UID: 0 PID: 285 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:ffff888014317d38 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff88806ce37d00 RCX: ffffffff8139de70
RDX: ffff888014248000 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c4801
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888014248000
R13: 0000000000000000 R14: ffff888014248000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdede270718 CR3: 0000000042edf000 CR4: 0000000000350ef0
Call Trace:
__schedule+0x217/0x3590
do_task_dead+0xdc/0x110
make_task_dead+0x373/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f100d323f87
Code: Unable to access opcode bytes at 0x7f100d323f5d.
RSP: 002b:00007ffddd62ea28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000f RCX: 00007f100d323f87
RDX: 00007ffddd62eaf9 RSI: 000000000000000a RDI: 00007ffddd62eaf0
RBP: 00007ffddd62eaf0 R08: 00000000ffffffff R09: 00007ffddd62e8c0
R10: 000055556d965c7b R11: 0000000000000246 R12: 00007f100d37c105
R13: 00007ffddd62fbb0 R14: 000055556d965c20 R15: 00007ffddd62fbf0
irq event stamp: 167932
hardirqs last enabled at (167931): [] _raw_spin_unlock_irq+0x23/0x40
hardirqs last disabled at (167932): [] _raw_spin_lock_irq+0x42/0x50
softirqs last enabled at (167906): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (167891): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 48 8b 6d 00 mov 0x0(%rbp),%rbp
4: e8 4f 9e 79 03 callq 0x3799e58
9: 31 ff xor %edi,%edi
b: 41 89 c5 mov %eax,%r13d
e: 89 c6 mov %eax,%esi
10: e8 93 f3 31 00 callq 0x31f3a8
15: 45 85 ed test %r13d,%r13d
18: 0f 85 e1 05 00 00 jne 0x5ff
1e: e8 55 f8 31 00 callq 0x31f878
23: 48 89 e8 mov %rbp,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 0f 85 a0 0e 00 00 jne 0xed5
35: 4c 8b 75 00 mov 0x0(%rbp),%r14
39: 48 89 df mov %rbx,%rdi
3c: 4c 89 34 24 mov %r14,(%rsp)