audit: type=1400 audit(1732891226.526:13): avc: denied { tracepoint } for pid=11582 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 loop0: detected capacity change from 0 to 6 vfat: Unknown parameter '' watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:11572] Modules linked in: irq event stamp: 2464805 hardirqs last enabled at (2464804): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2464805): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2460158): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2460179): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 11572 Comm: syz-executor.5 Not tainted 6.12.0-next-20241128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xc5a/0x2490 Code: 40 84 f6 0f 95 c0 84 c2 0f 85 3a 17 00 00 48 0f bf 41 02 ba 08 00 00 00 4c 89 ff 49 01 c6 4c 89 f6 e8 ca f1 ff ff 4d 8d 4f 40 <84> c0 0f 84 a4 f6 ff ff 4c 89 f7 e8 b6 e9 ff ff 49 8d 7f 50 48 89 RSP: 0018:ffff88806ce08d68 EFLAGS: 00000282 RAX: ffff88806ce0a001 RBX: 0000000000000002 RCX: 0000000000000002 RDX: ffff88806ce09e01 RSI: ffff88806ce09ef0 RDI: ffff88806ce08de8 RBP: ffff88806ce08e30 R08: 0000000000000001 R09: ffff88806ce08e18 R10: 000000000003c001 R11: 00000000000b769c R12: ffff88806ce08e38 R13: ffff88806ce08e20 R14: ffff88806ce09ef0 R15: ffff88806ce08dd8 FS: 00007f8bef28f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cb268d0000 CR3: 000000000c37c000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 __kmalloc_noprof+0x37e/0x4b0 ieee802_11_parse_elems_full+0xec/0x15a0 ieee80211_inform_bss+0xf7/0x10b0 cfg80211_inform_single_bss_data+0x7fe/0x1c70 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x6a0 ieee80211_bss_info_update+0x2f6/0xa90 ieee80211_scan_rx+0x474/0xac0 ieee80211_rx_list+0x1e38/0x2840 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0x96/0x160 Code: 0f 82 e0 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 e0 cd f1 03 48 01 ca 48 c1 ea 0c 48 c1 e2 06 48 03 15 be cd f1 03 48 8b 72 08 <48> 89 d1 40 f6 c6 01 0f 85 a1 00 00 00 66 90 80 79 33 f5 ba 00 00 RSP: 0018:ffff88803fa4fa50 EFLAGS: 00000282 RAX: ffff88803bdfd818 RBX: ffff88803bdfd818 RCX: ffff8880bbdfd818 RDX: ffffea0000ef7f40 RSI: ffff888008c4f780 RDI: 0000000000080000 RBP: 0000000000000000 R08: ffff8880130ebb90 R09: 00000000000d000a R10: ffffea00004c3a00 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88803fa4fa88 R14: ffff8880130ebb90 R15: ffff8880130ebb90 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 security_file_alloc+0x35/0x130 init_file+0x95/0x490 alloc_empty_file+0x94/0x1e0 alloc_file_pseudo+0x139/0x200 anon_inode_getfile+0xb4/0x1e0 __do_sys_perf_event_open+0x1776/0x2b00 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8bf1d3ab19 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:00007f8bef28f188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f8bf1e4e020 RCX: 00007f8bf1d3ab19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007f8bf1d94f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffce5c61bff R14: 00007f8bef28f300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 40 84 f6 test %sil,%sil 3: 0f 95 c0 setne %al 6: 84 c2 test %al,%dl 8: 0f 85 3a 17 00 00 jne 0x1748 e: 48 0f bf 41 02 movswq 0x2(%rcx),%rax 13: ba 08 00 00 00 mov $0x8,%edx 18: 4c 89 ff mov %r15,%rdi 1b: 49 01 c6 add %rax,%r14 1e: 4c 89 f6 mov %r14,%rsi 21: e8 ca f1 ff ff callq 0xfffff1f0 26: 4d 8d 4f 40 lea 0x40(%r15),%r9 * 2a: 84 c0 test %al,%al <-- trapping instruction 2c: 0f 84 a4 f6 ff ff je 0xfffff6d6 32: 4c 89 f7 mov %r14,%rdi 35: e8 b6 e9 ff ff callq 0xffffe9f0 3a: 49 8d 7f 50 lea 0x50(%r15),%rdi 3e: 48 rex.W 3f: 89 .byte 0x89