loop4: detected capacity change from 0 to 16383 FAT-fs (loop4): bogus number of reserved sectors FAT-fs (loop4): Can't find a valid FAT filesystem loop4: detected capacity change from 0 to 16383 vfat: Unknown parameter './file0' watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.3:7007] Modules linked in: irq event stamp: 3010149 hardirqs last enabled at (3010148): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3010149): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2994464): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2994469): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 7007 Comm: syz-executor.3 Not tainted 6.12.0-next-20241121 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xcc1/0x2490 Code: fc ff df 4c 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 7b 16 00 00 41 3b 1f 0f 84 c1 09 00 00 65 ff 0d 77 f9 ee 7e <0f> 94 c0 0f 84 3d 0c 00 00 b8 01 00 00 00 e9 8d f6 ff ff ba 28 00 RSP: 0018:ffff88806cf08e38 EFLAGS: 00000203 RAX: ffff88800f6e8001 RBX: ffff88800f6e79f8 RCX: 0000000000000001 RDX: ffff88800f6e7a00 RSI: ffff88800f6e79c8 RDI: ffff88806cf08eb8 RBP: ffff88800f6e0000 R08: 0000000000000001 R09: ffff88806cf08ee8 R10: 000000000003c001 R11: 0000000000023f55 R12: ffff88806cf08f08 R13: ffff88806cf08ef0 R14: ffff88800f6e79c8 R15: ffff88806cf08ea8 FS: 00007f99d6178700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffe3beb000 CR3: 000000003c6fa000 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_kmalloc+0x7f/0x90 __kmalloc_noprof+0x1f7/0x4b0 ieee802_11_parse_elems_full+0xec/0x15a0 ieee80211_inform_bss+0xf7/0x10b0 cfg80211_inform_single_bss_data+0x7fe/0x1c50 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x690 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+0x28/0x160 Code: 90 90 48 8b 07 48 85 c0 0f 84 41 01 00 00 41 57 41 56 41 55 49 89 fd 41 54 49 89 f4 55 53 eb 3e 48 63 95 c0 00 00 00 48 8b 18 <48> 89 ef 48 29 d0 48 89 c6 49 89 c6 e8 e7 f0 ff ff 49 89 c7 66 90 RSP: 0018:ffff88800f6e79c0 EFLAGS: 00000246 RAX: ffff88803c8c8c00 RBX: ffff888015a6e140 RCX: ffffea0000f23200 RDX: 0000000000000000 RSI: ffff8880096a1500 RDI: ffffffff8184a5e6 RBP: ffff8880096a1500 R08: 0000000000000001 R09: fffffbfff0fdd9f1 R10: ffffffff87eecf8f R11: 00000000000007e0 R12: 0000000000000000 R13: ffff88800f6e79f8 R14: ffff88800e595dc0 R15: ffff88800e595dc0 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 vm_area_dup+0x20/0x160 copy_process+0x78e3/0x8e90 kernel_clone+0xeb/0x850 __do_sys_fork+0x80/0xc0 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f99d8c02b19 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:00007f99d6178188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007f99d8d15f60 RCX: 00007f99d8c02b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f99d8c5cf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd7b25b62f R14: 00007f99d6178300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: df 4c 89 fa fisttps -0x6(%rcx,%rcx,4) 4: 48 c1 ea 03 shr $0x3,%rdx 8: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax c: 84 c0 test %al,%al e: 74 08 je 0x18 10: 3c 03 cmp $0x3,%al 12: 0f 8e 7b 16 00 00 jle 0x1693 18: 41 3b 1f cmp (%r15),%ebx 1b: 0f 84 c1 09 00 00 je 0x9e2 21: 65 ff 0d 77 f9 ee 7e decl %gs:0x7eeef977(%rip) # 0x7eeef99f * 28: 0f 94 c0 sete %al <-- trapping instruction 2b: 0f 84 3d 0c 00 00 je 0xc6e 31: b8 01 00 00 00 mov $0x1,%eax 36: e9 8d f6 ff ff jmpq 0xfffff6c8 3b: ba .byte 0xba 3c: 28 00 sub %al,(%rax)