RBP: 00007f9def583000 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002
------------[ cut here ]------------
WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#1: systemd-udevd/112
Modules linked in:
CPU: 1 UID: 0 PID: 112 Comm: systemd-udevd Not tainted 6.18.0-rc2-next-20251024 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:get_data+0x364/0x400
Code: e8 83 e0 07 83 c0 03 38 d0 0f 8c be fe ff ff 84 d2 0f 84 b6 fe ff ff 48 89 ef e8 37 89 5b 00 e9 a9 fe ff ff e8 fd b6 1e 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 ec b6 1e 00 90 0f 0b 90 45 31
RSP: 0018:ffff88806cf08720 EFLAGS: 00010046
RAX: 0000000080010001 RBX: ffff88806cf08838 RCX: ffffffff81555256
RDX: ffff888015ec3700 RSI: ffffffff81555423 RDI: 0000000000000006
RBP: ffff88806cf08800 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85d30690
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS: 00007fddc20ae8c0(0000) GS:ffff8880e54f4000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9def582f78 CR3: 000000000b7d9000 CR4: 0000000000350ef0
Call Trace:
_prb_read_valid+0x2f3/0x830
prb_read_valid+0x78/0xa0
printk_get_next_message+0x10b/0x570
console_flush_one_record+0x64f/0xb20
__console_flush_and_unlock+0xb1/0x1d0
wake_up_klogd_work_func+0x17c/0x1e0
irq_work_single+0x128/0x260
irq_work_run_list+0x91/0xc0
update_process_times+0x12f/0x210
tick_nohz_handler+0x414/0x6d0
__hrtimer_run_queues+0x60f/0xac0
hrtimer_interrupt+0x369/0x830
__sysvec_apic_timer_interrupt+0xbb/0x330
sysvec_apic_timer_interrupt+0x6b/0x80
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:strlen+0x0/0xa0
Code: 24 08 48 89 3c 24 e8 6f eb f3 fc 48 8b 74 24 08 48 8b 3c 24 eb b8 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 89 fd 53
RSP: 0018:ffff888016547418 EFLAGS: 00000286
RAX: ffffffff84e81c60 RBX: 1ffff11002ca8e8d RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff85e1dca0 RDI: ffffffff84e95400
RBP: ffff888016547510 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffff85d248e0 R11: 0000000000000001 R12: ffffffff85e1dcb8
R13: ffff8880165474e8 R14: 0000000000000000 R15: ffff888016547668
perf_trace_lock_acquire+0xc9/0x700
lock_acquire+0xc5/0x2f0
unwind_next_frame+0xcd/0x2540
__unwind_start+0x517/0x7c0
arch_stack_walk+0x62/0xf0
stack_trace_save+0x8e/0xc0
kasan_save_stack+0x24/0x50
kasan_save_track+0x14/0x30
__kasan_slab_alloc+0x59/0x70
kmem_cache_alloc_noprof+0x213/0x690
security_file_alloc+0x35/0x130
init_file+0x95/0x4c0
alloc_empty_file+0x76/0x1e0
path_openat+0xe0/0x2880
do_filp_open+0x1e8/0x450
do_sys_openat2+0x104/0x1b0
__x64_sys_openat+0x142/0x200
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fddc255dd62
Code: c0 f6 c2 40 75 52 89 d0 45 31 d2 25 00 00 41 00 3d 00 00 41 00 74 41 64 8b 04 25 18 00 00 00 85 c0 75 65 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 a2 00 00 00 48 8b 4c 24 38 64 48 2b 0c 25
RSP: 002b:00007fffc1e0c4c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fddc255dd62
RDX: 00000000002a0000 RSI: 0000564f06339931 RDI: 000000000000000f
RBP: 0000564f06339930 R08: 0000564ee50538f0 R09: 00007fddc262dbe0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000564f06339e54
R13: 000000000000000f R14: 0000000000000008 R15: 0000564f06339931
irq event stamp: 12043078
hardirqs last enabled at (12043077): [] _raw_spin_unlock_irqrestore+0x2c/0x50
hardirqs last disabled at (12043078): [] sysvec_apic_timer_interrupt+0xf/0x80
softirqs last enabled at (12042908): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (12042853): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop2: detected capacity change from 0 to 512
EXT4-fs (loop2): failed to parse options in superblock: Ð
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 0 UID: 0 PID: 9271 Comm: syz-executor.0 Tainted: G W 6.18.0-rc2-next-20251024 #1 PREEMPT(voluntary)
Tainted: [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
should_fail_ex+0x4d7/0x5e0
should_fail_alloc_page+0xe0/0x110
prepare_alloc_pages+0x1eb/0x550
__alloc_frozen_pages_noprof+0x17f/0x1f20
alloc_pages_mpol+0xed/0x340
alloc_pages_noprof+0x9d/0x180
get_zeroed_page_noprof+0x18/0xb0
mon_alloc_buff+0xed/0x250
mon_bin_open+0x209/0x4a0
chrdev_open+0x234/0x690
do_dentry_open+0x71c/0x1420
vfs_open+0x82/0x3f0
path_openat+0x1c3f/0x2880
do_filp_open+0x1e8/0x450
do_sys_openat2+0x104/0x1b0
__x64_sys_openat+0x142/0x200
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc66387fa04
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007fc660e20cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fc66387fa04
RDX: 0000000000000000 RSI: 00007fc660e20d60 RDI: 00000000ffffff9c
RBP: 00007fc660e20d60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffc55d6fd3f R14: 00007fc660e21300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 UID: 0 PID: 9279 Comm: syz-executor.3 Tainted: G W 6.18.0-rc2-next-20251024 #1 PREEMPT(voluntary)
Tainted: [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
should_fail_ex+0x4d7/0x5e0
should_failslab+0xc2/0x120
kmem_cache_alloc_noprof+0x80/0x690
alloc_empty_file+0x58/0x1e0
path_openat+0xe0/0x2880
do_filp_open+0x1e8/0x450
do_sys_openat2+0x104/0x1b0
__x64_sys_openat+0x142/0x200
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9df1fc0a04
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007f9def582ed0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f9df2057970 RCX: 00007f9df1fc0a04
RDX: 0000000000000002 RSI: 00007f9def583000 RDI: 00000000ffffff9c
RBP: 00007f9def583000 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 UID: 0 PID: 9287 Comm: syz-executor.0 Tainted: G W 6.18.0-rc2-next-20251024 #1 PREEMPT(voluntary)
Tainted: [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
should_fail_ex+0x4d7/0x5e0
should_fail_alloc_page+0xe0/0x110
prepare_alloc_pages+0x1eb/0x550
__alloc_frozen_pages_noprof+0x17f/0x1f20
alloc_pages_mpol+0xed/0x340
alloc_pages_noprof+0x9d/0x180
get_zeroed_page_noprof+0x18/0xb0
mon_alloc_buff+0xed/0x250
mon_bin_open+0x209/0x4a0
chrdev_open+0x234/0x690
do_dentry_open+0x71c/0x1420
vfs_open+0x82/0x3f0
path_openat+0x1c3f/0x2880
do_filp_open+0x1e8/0x450
do_sys_openat2+0x104/0x1b0
__x64_sys_openat+0x142/0x200
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc66387fa04
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007fc660e41cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fc66387fa04
RDX: 0000000000000000 RSI: 00007fc660e41d60 RDI: 00000000ffffff9c
RBP: 00007fc660e41d60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffc55d6fd3f R14: 00007fc660e42300 R15: 0000000000022000
loop2: detected capacity change from 0 to 512
EXT4-fs (loop2): failed to parse options in superblock: Ð
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 UID: 0 PID: 9302 Comm: syz-executor.6 Tainted: G W 6.18.0-rc2-next-20251024 #1 PREEMPT(voluntary)
Tainted: [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
should_fail_ex+0x4d7/0x5e0
should_failslab+0xc2/0x120
__kmalloc_cache_noprof+0x81/0x6b0
alloc_name+0x41/0x110
__x64_sys_memfd_create+0x130/0x280
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9722357b19
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:00007f971f8ccf48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f9722357b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f97223b10fb
RBP: 0000000000000004 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000040000 R15: 0000000020013c00
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 UID: 0 PID: 9305 Comm: syz-executor.0 Tainted: G W 6.18.0-rc2-next-20251024 #1 PREEMPT(voluntary)
Tainted: [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
should_fail_ex+0x4d7/0x5e0
should_fail_alloc_page+0xe0/0x110
prepare_alloc_pages+0x1eb/0x550
__alloc_frozen_pages_noprof+0x17f/0x1f20
alloc_pages_mpol+0xed/0x340
alloc_pages_noprof+0x9d/0x180
get_zeroed_page_noprof+0x18/0xb0
mon_alloc_buff+0xed/0x250
mon_bin_open+0x209/0x4a0
chrdev_open+0x234/0x690
do_dentry_open+0x71c/0x1420
vfs_open+0x82/0x3f0
path_openat+0x1c3f/0x2880
do_filp_open+0x1e8/0x450
do_sys_openat2+0x104/0x1b0
__x64_sys_openat+0x142/0x200
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc66387fa04
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007fc660e41cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fc66387fa04
RDX: 0000000000000000 RSI: 00007fc660e41d60 RDI: 00000000ffffff9c
RBP: 00007fc660e41d60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffc55d6fd3f R14: 00007fc660e42300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 24 08 and $0x8,%al
2: 48 89 3c 24 mov %rdi,(%rsp)
6: e8 6f eb f3 fc callq 0xfcf3eb7a
b: 48 8b 74 24 08 mov 0x8(%rsp),%rsi
10: 48 8b 3c 24 mov (%rsp),%rdi
14: eb b8 jmp 0xffffffce
16: 0f 1f 40 00 nopl 0x0(%rax)
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: 90 nop
26: 90 nop
27: 90 nop
28: 90 nop
29: 90 nop
* 2a: f3 0f 1e fa endbr64 <-- trapping instruction
2e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
35: fc ff df
38: 55 push %rbp
39: 48 89 fa mov %rdi,%rdx
3c: 48 89 fd mov %rdi,%rbp
3f: 53 push %rbx