9pnet: Insufficient options for proto=fd syz-executor.0 (3984) used greatest stack depth: 24128 bytes left watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:4010] Modules linked in: irq event stamp: 4860463 hardirqs last enabled at (4860462): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4860463): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (4858096): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4858099): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4010 Comm: syz-executor.2 Not tainted 5.10.227 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:49 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:121 [inline] RIP: 0010:lock_release+0x144/0x680 kernel/locking/lockdep.c:5582 Code: 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 eb 04 00 00 45 8b 8e 44 09 00 00 45 85 c9 0f 85 74 02 00 00 9c 8f 04 24 48 89 da c7 44 24 40 01 00 00 00 83 e3 07 48 b8 00 00 00 00 00 RSP: 0018:ffff88806ce09b40 EFLAGS: 00000246 RAX: 0000000000000007 RBX: ffffffff856786bc RCX: ffffffff81274c58 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880458da384 RBP: 1ffff1100d9c136a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff84ff98e0 R13: ffffed1001f99294 R14: ffff8880458d9a40 R15: ffff88800fcc8bc0 FS: 00007fb098dda700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8e2a739344 CR3: 0000000044852000 CR4: 0000000000350ef0 Call Trace: rcu_lock_release include/linux/rcupdate.h:308 [inline] rcu_read_unlock include/linux/rcupdate.h:771 [inline] sta_info_get_bss+0x22c/0x470 net/mac80211/sta_info.c:202 __ieee80211_rx_handle_packet net/mac80211/rx.c:4725 [inline] ieee80211_rx_list+0xdb0/0x2370 net/mac80211/rx.c:4846 ieee80211_rx_napi+0xdc/0x3c0 net/mac80211/rx.c:4867 ieee80211_rx include/net/mac80211.h:4502 [inline] ieee80211_tasklet_handler+0xd3/0x130 net/mac80211/main.c:235 tasklet_action_common.constprop.0+0x244/0x2f0 kernel/softirq.c:560 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:__unwind_start+0x37e/0x7e0 arch/x86/kernel/unwind_orc.c:654 Code: 00 00 49 8b 77 28 4c 89 e1 4c 89 fa 48 89 ef e8 78 84 f6 ff 85 c0 0f 85 5a ff ff ff e9 e7 fe ff ff 65 48 8b 04 25 80 6f 02 00 <48> 39 c5 0f 84 10 02 00 00 48 8d bd 18 15 00 00 48 b8 00 00 00 00 RSP: 0018:ffff888045917458 EFLAGS: 00000246 RAX: ffff8880458d9a40 RBX: ffff888045917530 RCX: 0000000000000000 RDX: 1ffff11008b22e9a RSI: 0000000000000000 RDI: ffff888045917508 RBP: ffff8880458d9a40 R08: 0000000000000001 R09: ffff8880459174a8 R10: ffffed1008b22ea0 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880459174d0 R14: ffff8880458d9a40 R15: ffff8880459174a8 unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch_stack_walk+0x5f/0xf0 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track+0x1c/0x30 mm/kasan/common.c:56 kasan_set_free_info+0x1b/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0x110/0x160 mm/kasan/common.c:422 slab_free_hook mm/slub.c:1542 [inline] slab_free_freelist_hook+0xa9/0x180 mm/slub.c:1576 slab_free mm/slub.c:3149 [inline] kfree+0xd7/0x340 mm/slub.c:4125 mext_check_coverage.constprop.0+0x2a7/0x3e0 fs/ext4/move_extent.c:109 move_extent_per_page fs/ext4/move_extent.c:322 [inline] ext4_move_extents+0x131b/0x3050 fs/ext4/move_extent.c:673 __ext4_ioctl+0x302e/0x4190 fs/ext4/ioctl.c:999 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fb09b885b19 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:00007fb098dda188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb09b999020 RCX: 00007fb09b885b19 RDX: 0000000020000040 RSI: 00000000c028660f RDI: 0000000000000003 RBP: 00007fb09b8dff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc34ebe80f R14: 00007fb098dda300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 1 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706 syz-executor.3 (4015) used greatest stack depth: 23896 bytes left ---------------- Code disassembly (best guess): 0: 02 48 89 add -0x77(%rax),%cl 3: f8 clc 4: 83 e0 07 and $0x7,%eax 7: 83 c0 03 add $0x3,%eax a: 38 d0 cmp %dl,%al c: 7c 08 jl 0x16 e: 84 d2 test %dl,%dl 10: 0f 85 eb 04 00 00 jne 0x501 16: 45 8b 8e 44 09 00 00 mov 0x944(%r14),%r9d 1d: 45 85 c9 test %r9d,%r9d 20: 0f 85 74 02 00 00 jne 0x29a 26: 9c pushfq 27: 8f 04 24 popq (%rsp) * 2a: fa cli <-- trapping instruction 2b: 48 89 da mov %rbx,%rdx 2e: c7 44 24 40 01 00 00 movl $0x1,0x40(%rsp) 35: 00 36: 83 e3 07 and $0x7,%ebx 39: 48 rex.W 3a: b8 00 00 00 00 mov $0x0,%eax