watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:11516] Modules linked in: irq event stamp: 1866735 hardirqs last enabled at (1866734): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (1866735): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (1858838): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1858847): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 11516 Comm: syz-executor.1 Not tainted 6.13.0-rc3-next-20241220 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:ieee80211_prepare_and_rx_handle+0xdf5/0x5e70 Code: 89 c2 48 89 44 24 18 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 80 3e 00 00 48 8d 7d 40 48 8b 9d d0 00 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 RSP: 0018:ffff88806ce09aa8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88803f4a3c50 RCX: ffffffff847daadc RDX: 1ffff1100179d1aa RSI: ffffffff847d92af RDI: ffff88800bce8cc0 RBP: ffff88800bce8c80 R08: 0000000050415258 R09: ffff888015eb8a40 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801a9a0c40 R13: ffff88806ce09ba0 R14: ffff888018f78000 R15: ffff88806ce09d70 FS: 00007f865426a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000001b37c000 CR4: 0000000000350ef0 Call Trace: ieee80211_rx_for_interface+0x10e/0x200 ieee80211_rx_list+0x1bec/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 77 f0 ff ff 49 89 c7 66 90 RSP: 0018:ffff88803ef77dc0 EFLAGS: 00000246 RAX: ffff88801b197800 RBX: ffff88801b197000 RCX: ffffea00006c6400 RDX: 0000000000000000 RSI: ffffea00006c6401 RDI: ffffffff81a47796 RBP: ffff888008c41dc0 R08: 0000000000000001 R09: fffffbfff0fdfbe9 R10: ffffffff87efdf4f R11: 0000000000000000 R12: 0000000000000000 R13: ffff88803ef77df8 R14: ffff88803f449140 R15: ffff88803f449140 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 __kmalloc_node_track_caller_noprof+0x18f/0x490 memdup_user+0x2b/0xd0 strndup_user+0x78/0xe0 __x64_sys_fsopen+0x9c/0x240 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8656d15b19 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:00007f865426a188 EFLAGS: 00000246 ORIG_RAX: 00000000000001ae RAX: ffffffffffffffda RBX: 00007f8656e29020 RCX: 00007f8656d15b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007f8656d6ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2a1c7bbf R14: 00007f865426a300 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: 89 c2 mov %eax,%edx 2: 48 89 44 24 18 mov %rax,0x18(%rsp) 7: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax e: fc ff df 11: 48 c1 ea 03 shr $0x3,%rdx 15: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 19: 0f 85 80 3e 00 00 jne 0x3e9f 1f: 48 8d 7d 40 lea 0x40(%rbp),%rdi 23: 48 8b 9d d0 00 00 00 mov 0xd0(%rbp),%rbx * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 89 fa mov %rdi,%rdx 37: 48 c1 ea 03 shr $0x3,%rdx 3b: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 3f: 84 .byte 0x84