RBP: 00007f1511a391d0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe26b591cf R14: 00007f1511a39300 R15: 0000000000022000
------------[ cut here ]------------
WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#0: syz-executor.5/26984
Modules linked in:
CPU: 0 UID: 0 PID: 26984 Comm: syz-executor.5 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:ffff88806ce08720 EFLAGS: 00010046
RAX: 0000000000010000 RBX: ffff88806ce08838 RCX: ffffffff81555256
RDX: ffff888053be5280 RSI: ffffffff81555423 RDI: 0000000000000006
RBP: ffff88806ce08800 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85d30690
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS: 00007f1511a39700(0000) GS:ffff8880e53f4000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1511a38f78 CR3: 000000004c857000 CR4: 0000000000350ef0
DR0: ffdfffffffff7693 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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:dump_stack_lvl+0x115/0x120
Code: fc ff ff 4c 89 e2 31 f6 31 ff e8 86 97 72 fc e8 81 8e 9c fc 48 89 ee 31 ff e8 87 58 bc fc e8 22 5d bc fc e8 cd b9 c4 fc fb 5b <5d> 41 5c e9 13 5d bc fc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffff88800ca27610 EFLAGS: 00000202
RAX: 000000000000012f RBX: ffffffff85f036e0 RCX: 0000000000000080
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84b7ae03
RBP: 0000000000000200 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff86646857 R11: 0000000000000001 R12: ffffffff855191e0
R13: ffffffff85f036f0 R14: 0000000000000000 R15: 0000000000000000
should_fail_ex+0x4d7/0x5e0
should_failslab+0xc2/0x120
__kmalloc_cache_node_noprof+0x84/0x6c0
__get_vm_area_node+0xf0/0x290
__vmalloc_node_range_noprof+0x26f/0x1620
__vmalloc_node_noprof+0xac/0xf0
objpool_init+0x8dc/0xd00
rethook_alloc+0x115/0x1a0
register_kretprobe+0x2f2/0x790
__register_trace_kprobe+0x25c/0x340
create_local_trace_kprobe+0x217/0x410
perf_kprobe_init+0x119/0x210
perf_kprobe_event_init+0xfc/0x1d0
perf_try_init_event+0x140/0x9f0
perf_event_alloc.part.0+0x118e/0x45f0
__do_sys_perf_event_open+0x719/0x2c20
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f15144c3b19
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:00007f1511a39188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f15145d6f60 RCX: 00007f15144c3b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007f1511a391d0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe26b591cf R14: 00007f1511a39300 R15: 0000000000022000
irq event stamp: 304
hardirqs last enabled at (303): [] dump_stack_lvl+0x113/0x120
hardirqs last disabled at (304): [] sysvec_apic_timer_interrupt+0xf/0x80
softirqs last enabled at (298): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (267): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
hpet: Lost 4 RTC interrupts
syz-executor.5: vmalloc error: size 384, vm_struct allocation failed, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0
CPU: 0 UID: 0 PID: 26984 Comm: syz-executor.5 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
warn_alloc+0x211/0x360
__vmalloc_node_range_noprof+0xf4e/0x1620
__vmalloc_node_noprof+0xac/0xf0
objpool_init+0x8dc/0xd00
rethook_alloc+0x115/0x1a0
register_kretprobe+0x2f2/0x790
__register_trace_kprobe+0x25c/0x340
create_local_trace_kprobe+0x217/0x410
perf_kprobe_init+0x119/0x210
perf_kprobe_event_init+0xfc/0x1d0
perf_try_init_event+0x140/0x9f0
perf_event_alloc.part.0+0x118e/0x45f0
__do_sys_perf_event_open+0x719/0x2c20
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f15144c3b19
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:00007f1511a39188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f15145d6f60 RCX: 00007f15144c3b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007f1511a391d0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe26b591cf R14: 00007f1511a39300 R15: 0000000000022000
Mem-Info:
active_anon:64 inactive_anon:43102 isolated_anon:0
active_file:11977 inactive_file:32274 isolated_file:0
unevictable:0 dirty:199 writeback:0
slab_reclaimable:6097 slab_unreclaimable:65350
mapped:81484 shmem:111 pagetables:5188
sec_pagetables:0 bounce:0
kernel_misc_reclaimable:0
free:163642 free_pcp:1530 free_cma:0
Node 0 active_anon:256kB inactive_anon:172408kB active_file:47908kB inactive_file:129096kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:325936kB dirty:796kB writeback:0kB shmem:444kB kernel_stack:8096kB pagetables:20752kB sec_pagetables:0kB all_unreclaimable? no Balloon:0kB
Node 0 DMA free:15224kB boost:0kB min:44kB low:56kB high:68kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:108kB unevictable:0kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:28kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 1599 1599 1599
Node 0 DMA32 free:639344kB boost:0kB min:5072kB low:6696kB high:8320kB reserved_highatomic:0KB free_highatomic:0KB active_anon:256kB inactive_anon:172408kB active_file:47908kB inactive_file:128988kB unevictable:0kB writepending:880kB zspages:0kB present:2080640kB managed:1638236kB mlocked:0kB bounce:0kB free_pcp:6028kB local_pcp:3344kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 2*4kB (UM) 0*8kB 1*16kB (M) 1*32kB (U) 1*64kB (U) 2*128kB (UM) 2*256kB (UM) 2*512kB (UM) 1*1024kB (M) 0*2048kB 3*4096kB (UM) = 15224kB
Node 0 DMA32: 2298*4kB (UME) 945*8kB (UME) 594*16kB (UME) 558*32kB (UME) 376*64kB (UM) 152*128kB (UME) 123*256kB (UME) 86*512kB (UME) 55*1024kB (UME) 21*2048kB (UE) 92*4096kB (UME) = 639312kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
27536 total pagecache pages
0 pages in swap cache
Free swap = 0kB
Total swap = 0kB
524158 pages RAM
0 pages HighMem/MovableOnly
110759 pages reserved
Process accounting resumed
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 UID: 0 PID: 27171 Comm: syz-executor.5 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_node_noprof+0xc8/0x690
__vmalloc_node_range_noprof+0x47a/0x1620
__vmalloc_node_noprof+0xac/0xf0
objpool_init+0x8dc/0xd00
rethook_alloc+0x115/0x1a0
register_kretprobe+0x2f2/0x790
__register_trace_kprobe+0x25c/0x340
create_local_trace_kprobe+0x217/0x410
perf_kprobe_init+0x119/0x210
perf_kprobe_event_init+0xfc/0x1d0
perf_try_init_event+0x140/0x9f0
perf_event_alloc.part.0+0x118e/0x45f0
__do_sys_perf_event_open+0x719/0x2c20
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f15144c3b19
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:00007f1511a39188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f15145d6f60 RCX: 00007f15144c3b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007f1511a391d0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe26b591cf R14: 00007f1511a39300 R15: 0000000000022000
hpet: Lost 1 RTC interrupts
----------------
Code disassembly (best guess), 2 bytes skipped:
0: ff 4c 89 e2 decl -0x1e(%rcx,%rcx,4)
4: 31 f6 xor %esi,%esi
6: 31 ff xor %edi,%edi
8: e8 86 97 72 fc callq 0xfc729793
d: e8 81 8e 9c fc callq 0xfc9c8e93
12: 48 89 ee mov %rbp,%rsi
15: 31 ff xor %edi,%edi
17: e8 87 58 bc fc callq 0xfcbc58a3
1c: e8 22 5d bc fc callq 0xfcbc5d43
21: e8 cd b9 c4 fc callq 0xfcc4b9f3
26: fb sti
27: 5b pop %rbx
* 28: 5d pop %rbp <-- trapping instruction
29: 41 5c pop %r12
2b: e9 13 5d bc fc jmpq 0xfcbc5d43
30: 0f 1f 00 nopl (%rax)
33: 90 nop
34: 90 nop
35: 90 nop
36: 90 nop
37: 90 nop
38: 90 nop
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 90 nop
3d: 90 nop