No source specified No source specified loop3: detected capacity change from 0 to 512 watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.3:13835] Modules linked in: irq event stamp: 2589287 hardirqs last enabled at (2589286): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2589287): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2524850): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2524853): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 13835 Comm: syz-executor.3 Not tainted 6.13.0-rc2-next-20241210 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x369/0x2490 Code: ff df 4c 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e f7 16 00 00 41 c7 07 00 00 00 00 31 c0 48 83 c4 38 5b 5d 41 5c <41> 5d 41 5e 41 5f e9 ac f7 72 03 48 81 f9 00 80 d5 86 0f 83 cb 02 RSP: 0018:ffff88806cf09658 EFLAGS: 00000292 RAX: 0000000000000001 RBX: ffffffff815f05b0 RCX: 0000000000000001 RDX: ffff8880416a7de8 RSI: ffff8880416a7dc0 RDI: ffff88806cf09688 RBP: ffff88806cf09710 R08: 0000000000000001 R09: ffff88806cf096b8 R10: 000000000003a7e3 R11: 000000000002419b R12: ffff88806cf09740 R13: ffff88806cf096c0 R14: ffff8880416a7dc0 R15: ffff88806cf09678 FS: 00007f6dd724b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3f4ed21d38 CR3: 000000003d5e6000 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_node_noprof+0x14c/0x3e0 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 __netdev_alloc_skb+0x7a/0x7c0 __ieee80211_beacon_get+0x3f4/0xfc0 ieee80211_beacon_get_tim+0xa6/0x280 mac80211_hwsim_beacon_tx+0x49b/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa80 hrtimer_run_softirq+0x14c/0x310 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+0xa9/0x160 Code: 03 48 01 ca 48 c1 ea 0c 48 c1 e2 06 48 03 15 1e aa d2 03 48 8b 72 08 48 89 d1 40 f6 c6 01 0f 85 a1 00 00 00 66 90 80 79 33 f5 00 00 00 00 48 0f 45 ca 48 8b 69 08 e9 63 ff ff ff 48 83 7d 48 RSP: 0018:ffff8880416a7d50 EFLAGS: 00000246 RAX: ffff88803dec6600 RBX: ffff88803dec6600 RCX: ffffea0000f7b000 RDX: ffffea0000f7b180 RSI: ffffea0000f7b001 RDI: 0000000000080000 RBP: 0000000000000000 R08: ffff88803dec5500 R09: 0000000000070001 R10: ffffea0000f7b000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880416a7d88 R14: ffff88803dec5500 R15: ffff88803dec5500 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 __kmalloc_cache_noprof+0x149/0x3e0 copy_mount_options+0x55/0x180 __x64_sys_mount+0x1ac/0x300 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6dd9cd704a Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007f6dd724afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f6dd9cd704a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6dd724b000 RBP: 00007f6dd724b040 R08: 00007f6dd724b040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f6dd724b000 R15: 0000000020012c00 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. ---------------- Code disassembly (best guess), 1 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 f7 16 00 00 jle 0x170f 18: 41 c7 07 00 00 00 00 movl $0x0,(%r15) 1f: 31 c0 xor %eax,%eax 21: 48 83 c4 38 add $0x38,%rsp 25: 5b pop %rbx 26: 5d pop %rbp 27: 41 5c pop %r12 * 29: 41 5d pop %r13 <-- trapping instruction 2b: 41 5e pop %r14 2d: 41 5f pop %r15 2f: e9 ac f7 72 03 jmpq 0x372f7e0 34: 48 81 f9 00 80 d5 86 cmp $0xffffffff86d58000,%rcx 3b: 0f .byte 0xf 3c: 83 cb 02 or $0x2,%ebx