Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
CPU: 1 UID: 0 PID: 4002 Comm: syz-executor.2 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
audit: type=1400 audit(1756603842.820:10): avc: denied { watch_reads } for pid=4021 comm="syz-executor.3" path="/syzkaller-testdir102391657/syzkaller.fJN0Gy/4/file0" dev="sda" ino=15996 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir permissive=1
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:ffff88800f6d6dc0 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90000fe9000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff88800f6d7030 R08: ffff88806cf31340 R09: ffffe8ffffd16be0
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806cf31340 R15: dffffc0000000000
FS: 00007fc66d54f700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f114517ef64 CR3: 000000001e7a4000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_lock+0x337/0x5d0
lock_release+0x1ab/0x290
bio_associate_blkg_from_css+0x74c/0x1380
bio_associate_blkg+0x10e/0x2a0
bio_init+0x2dd/0x570
bio_alloc_bioset+0x472/0x8c0
iomap_dio_alloc_bio.isra.0+0x88/0xc0
iomap_dio_bio_iter+0x8aa/0x1550
__iomap_dio_rw+0x10a1/0x1cf0
iomap_dio_rw+0x40/0xa0
ext4_file_write_iter+0xe0b/0x1990
iter_file_splice_write+0xa3b/0x11f0
direct_splice_actor+0x192/0x7b0
splice_direct_to_actor+0x347/0x9d0
do_splice_direct+0x179/0x250
do_sendfile+0xa8e/0xdc0
__x64_sys_sendfile64+0x1d3/0x210
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc66fffab19
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:00007fc66d54f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc67010e020 RCX: 00007fc66fffab19
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007
RBP: 00007fc670054f6d R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000a0103 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe49b06fdf R14: 00007fc66d54f300 R15: 0000000000022000
Modules linked in:
loop5: detected capacity change from 0 to 44
---[ end trace 0000000000000000 ]---
nfs4: Unknown parameter '/#{'
loop5: detected capacity change from 0 to 44
RIP: 0010:perf_tp_event+0x175/0xe70
nfs4: Unknown parameter '/#{'
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:ffff88800f6d6dc0 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90000fe9000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff88800f6d7030 R08: ffff88806cf31340 R09: ffffe8ffffd16be0
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806cf31340 R15: dffffc0000000000
FS: 00007fc66d54f700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f114517ef64 CR3: 000000001e7a4000 CR4: 0000000000350ef0
note: syz-executor.2[4002] exited with preempt_count 1
------------[ cut here ]------------
WARNING: kernel/exit.c:898 at do_exit+0x1c36/0x2970, CPU#1: syz-executor.2/4002
Modules linked in:
CPU: 1 UID: 0 PID: 4002 Comm: syz-executor.2 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:ffff88800f6d7e40 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000200 RCX: ffffc90000fe9000
RDX: 0000000000040000 RSI: ffffffff813b42d5 RDI: ffff8880180648e8
RBP: ffff888018063700 R08: 0000000000000001 R09: fffffbfff0f11cd8
R10: 0000000000000200 R11: 0000000000000001 R12: 000000000000000b
R13: 0000000000002710 R14: dffffc0000000032 R15: 0000000000000000
FS: 00007fc66d54f700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f114517ef64 CR3: 000000001e7a4000 CR4: 0000000000350ef0
Call Trace:
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7fc66fffab19
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:00007fc66d54f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc67010e020 RCX: 00007fc66fffab19
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007
RBP: 00007fc670054f6d R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000a0103 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe49b06fdf R14: 00007fc66d54f300 R15: 0000000000022000
irq event stamp: 6659
hardirqs last enabled at (6659): [] cond_local_irq_enable.isra.0+0x2e/0x40
hardirqs last disabled at (6658): [] exc_general_protection+0x32/0x330
softirqs last enabled at (6636): [] kernel_fpu_end+0x59/0x70
softirqs last disabled at (6634): [] kernel_fpu_begin_mask+0x1b7/0x290
---[ 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: 4002, name: syz-executor.2
preempt_count: 0, expected: 0
RCU nest depth: 3, expected: 0
INFO: lockdep is turned off.
CPU: 1 UID: 0 PID: 4002 Comm: syz-executor.2 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: 0033:0x7fc66fffab19
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:00007fc66d54f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc67010e020 RCX: 00007fc66fffab19
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007
RBP: 00007fc670054f6d R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000a0103 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe49b06fdf R14: 00007fc66d54f300 R15: 0000000000022000
loop7: detected capacity change from 0 to 592
syz-executor.2 (4002) used greatest stack depth: 24000 bytes left
=======================================================
WARNING: The mand mount option has been deprecated and
and is ignored by this kernel. Remove the mand
option from the mount to silence this warning.
=======================================================
loop5: detected capacity change from 0 to 44
nfs4: Unknown parameter '/#{'
loop5: detected capacity change from 0 to 44
nfs4: Unknown parameter '/#{'
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#2] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 289 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:__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:ffff88800f9676b0 EFLAGS: 00010056
RAX: 0000000000000000 RBX: ffff88800b8ba218 RCX: ffffffff8141ef1d
RDX: ffff88801393b700 RSI: ffffffff8141ef2b RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff0f11ef4
R10: 0000000000000000 R11: ffff888016720b50 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88800fefe000
FS: 0000555582701400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558270ac58 CR3: 00000000456bf000 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
__sync_dirty_buffer+0x176/0x380
fat_set_state+0x22f/0x360
fat_put_super+0x3f/0xc0
generic_shutdown_super+0x15a/0x4a0
kill_block_super+0x3b/0x90
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: 0033:0x7f1182177f87
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:00007ffff9837ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000e RCX: 00007f1182177f87
RDX: 00007ffff98380c9 RSI: 000000000000000a RDI: 00007ffff98380c0
RBP: 00007ffff98380c0 R08: 00000000ffffffff R09: 00007ffff9837e90
R10: 0000555582702c7b R11: 0000000000000246 R12: 00007f11821d0105
R13: 00007ffff9839180 R14: 0000555582702c20 R15: 00007ffff98391c0
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:ffff88800f6d6dc0 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90000fe9000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff88800f6d7030 R08: ffff88806cf31340 R09: ffffe8ffffd16be0
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806cf31340 R15: dffffc0000000000
FS: 0000555582701400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558270ac58 CR3: 00000000456bf000 CR4: 0000000000350ef0
note: syz-executor.7[289] exited with irqs disabled
note: syz-executor.7[289] exited with preempt_count 1
------------[ cut here ]------------
WARNING: kernel/exit.c:898 at do_exit+0x1c36/0x2970, CPU#0: syz-executor.7/289
Modules linked in:
CPU: 0 UID: 0 PID: 289 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: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:ffff88800f967e40 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffffffff813b2727
RDX: ffff88801393b700 RSI: ffffffff813b42d5 RDI: ffff88801393c8e8
RBP: ffff88801393b700 R08: 0000000000000001 R09: fffffbfff0f11cd8
R10: 0000000000000200 R11: 0000000000000001 R12: 000000000000000b
R13: 0000000000002710 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000555582701400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558270ac58 CR3: 00000000456bf000 CR4: 0000000000350ef0
Call Trace:
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f1182177f87
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:00007ffff9837ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000e RCX: 00007f1182177f87
RDX: 00007ffff98380c9 RSI: 000000000000000a RDI: 00007ffff98380c0
RBP: 00007ffff98380c0 R08: 00000000ffffffff R09: 00007ffff9837e90
R10: 0000555582702c7b R11: 0000000000000246 R12: 00007f11821d0105
R13: 00007ffff9839180 R14: 0000555582702c20 R15: 00007ffff98391c0
irq event stamp: 166248
hardirqs last enabled at (166247): [] _raw_spin_unlock_irqrestore+0x2c/0x50
hardirqs last disabled at (166248): [] __schedule+0x16dd/0x3590
softirqs last enabled at (165806): [] fpu_clone+0x16e/0x740
softirqs last disabled at (165804): [] fpu_clone+0xfa/0x740
---[ end trace 0000000000000000 ]---
BUG: unable to handle page fault for address: ffffffff00000008
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 5a8b067 P4D 5a8b067 PUD 0
Oops: Oops: 0002 [#3] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 289 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:__blk_flush_plug+0x128/0x460
Code: 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 e2 48 c1 ea 03 42 80 3c 3a 00 0f
RSP: 0018:ffff88800f967a08 EFLAGS: 00010246
RAX: ffffed1001f2cf6a RBX: ffff88800f967a60 RCX: 1fffffffe0000001
RDX: ffffffff00000000 RSI: ffffffff8238e087 RDI: ffffffff00000008
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff8643ac57 R11: ffff8880167236a0 R12: ffff88801393b700
R13: ffff88800f967a60 R14: ffff88800f967b18 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff00000008 CR3: 000000001e7a4000 CR4: 0000000000350ef0
Call Trace:
schedule+0x2b9/0x390
exp_funnel_lock+0x450/0x5c0
synchronize_rcu_expedited+0x27e/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: 0033:0x7f1182177f87
Code: Unable to access opcode bytes at 0x7f1182177f5d.
RSP: 002b:00007ffff9837ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000e RCX: 00007f1182177f87
RDX: 00007ffff98380c9 RSI: 000000000000000a RDI: 00007ffff98380c0
RBP: 00007ffff98380c0 R08: 00000000ffffffff R09: 00007ffff9837e90
R10: 0000555582702c7b R11: 0000000000000246 R12: 00007f11821d0105
R13: 00007ffff9839180 R14: 0000555582702c20 R15: 00007ffff98391c0
Modules linked in:
CR2: ffffffff00000008
---[ 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:ffff88800f6d6dc0 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90000fe9000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff88800f6d7030 R08: ffff88806cf31340 R09: ffffe8ffffd16be0
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806cf31340 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff00000008 CR3: 000000001e7a4000 CR4: 0000000000350ef0
note: syz-executor.7[289] exited with irqs disabled
Fixing recursive fault but reboot is needed!
BUG: scheduling while atomic: syz-executor.7/289/0x00000000
INFO: lockdep is turned off.
Modules linked in:
CPU: 0 UID: 0 PID: 289 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
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: 0033:0x7f1182177f87
Code: Unable to access opcode bytes at 0x7f1182177f5d.
RSP: 002b:00007ffff9837ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000e RCX: 00007f1182177f87
RDX: 00007ffff98380c9 RSI: 000000000000000a RDI: 00007ffff98380c0
RBP: 00007ffff98380c0 R08: 00000000ffffffff R09: 00007ffff9837e90
R10: 0000555582702c7b R11: 0000000000000246 R12: 00007f11821d0105
R13: 00007ffff9839180 R14: 0000555582702c20 R15: 00007ffff98391c0
------------[ 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.7/289
Modules linked in:
CPU: 0 UID: 0 PID: 289 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: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:ffff88800f967d38 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff88806ce37d00 RCX: ffffffff8139de70
RDX: ffff88801393b700 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c4801
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801393b700
R13: 0000000000000000 R14: ffff88801393b700 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff00000008 CR3: 000000001e7a4000 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: 0033:0x7f1182177f87
Code: Unable to access opcode bytes at 0x7f1182177f5d.
RSP: 002b:00007ffff9837ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000e RCX: 00007f1182177f87
RDX: 00007ffff98380c9 RSI: 000000000000000a RDI: 00007ffff98380c0
RBP: 00007ffff98380c0 R08: 00000000ffffffff R09: 00007ffff9837e90
R10: 0000555582702c7b R11: 0000000000000246 R12: 00007f11821d0105
R13: 00007ffff9839180 R14: 0000555582702c20 R15: 00007ffff98391c0
irq event stamp: 166248
hardirqs last enabled at (166247): [] _raw_spin_unlock_irqrestore+0x2c/0x50
hardirqs last disabled at (166248): [] __schedule+0x16dd/0x3590
softirqs last enabled at (165806): [] fpu_clone+0x16e/0x740
softirqs last disabled at (165804): [] fpu_clone+0xfa/0x740
---[ end trace 0000000000000000 ]---
Bluetooth: hci6: command 0x0405 tx timeout
----------------
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