watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.7:13939] Modules linked in: irq event stamp: 4296007 hardirqs last enabled at (4296006): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4296007): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4285270): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4285273): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 13939 Comm: syz-executor.7 Not tainted 6.2.0-rc3-next-20230110 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:___slab_alloc+0x1d4/0x1080 Code: 75 28 0f 85 22 04 00 00 49 c7 45 28 00 00 00 00 48 c7 c6 c2 12 7d 81 4c 89 ef e8 67 04 af ff 48 83 3c 24 00 0f 85 53 01 00 00 <48> 83 7b 18 00 0f 84 ef 04 00 00 9c 41 5d fa 41 81 e5 00 02 00 00 RSP: 0018:ffff88806ce098c0 EFLAGS: 00000206 RAX: 0000000000418d12 RBX: ffff88806ce3d940 RCX: ffffffff812b79af RDX: 0000000000000000 RSI: 0000000000000103 RDI: 0000000000000000 RBP: ffff88800844f780 R08: 0000000000000001 R09: ffffffff8765294f R10: fffffbfff0eca529 R11: 0000000000000001 R12: 00000000ffffffff R13: ffff88806ce3d960 R14: ffff88804d135040 R15: 0000000000000000 FS: 00007f798a6dd700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c423000 CR3: 000000001f0ce000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __slab_alloc.constprop.0+0x4d/0x90 kmem_cache_alloc+0x2e7/0x300 __create_object+0x3d/0xc40 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x70 Code: 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 7d 16 ba 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 80 89 03 00 a9 00 01 ff 00 74 0e RSP: 0018:ffff888045f574f8 EFLAGS: 00000216 RAX: 0000000080000001 RBX: 00000000db70a438 RCX: 0000000080000001 RDX: ffff88804d135040 RSI: ffffffff82162304 RDI: 0000000000000006 RBP: 0000000000000080 R08: 0000000000000006 R09: 0000000000000080 R10: 0000000000000008 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffffff849f1300 R14: 0000000000000008 R15: ffff88801793a03c crc32_body+0x84/0x600 chksum_update+0x50/0xb0 crypto_shash_update+0xce/0x130 ext4_inode_bitmap_csum_set+0x1f4/0x380 __ext4_new_inode+0x1d40/0x56d0 ext4_create+0x2e4/0x4e0 lookup_open.isra.0+0xed0/0x1250 path_openat+0x94b/0x2a50 do_filp_open+0x1ba/0x410 do_sys_openat2+0x171/0x4c0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f798d167b19 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:00007f798a6dd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f798d27af60 RCX: 00007f798d167b19 RDX: 0000000000004042 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007f798d1c1f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd74201e2f R14: 00007f798a6dd300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 273 Comm: syz-executor.4 Not tainted 6.2.0-rc3-next-20230110 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc90 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 e6 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 ee 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff888041297a60 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84446d1b RDX: ffffed1001e97009 RSI: 0000000000000004 RDI: ffff88800f4b8040 RBP: ffff88800f4b8040 R08: 0000000000000000 R09: ffff88800f4b8043 R10: ffffed1001e97008 R11: 0000000000000001 R12: 0000000000000003 R13: ffffed1001e97008 R14: 0000000000000001 R15: 1ffff11008252f4d FS: 0000555556aea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe294b5df8 CR3: 0000000041c90000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: do_raw_spin_lock+0x1e0/0x270 ext4_free_inode+0x7e0/0x1420 ext4_evict_inode+0xf38/0x1b00 evict+0x284/0x610 iput+0x4a8/0x820 do_unlinkat+0x3e7/0x620 __x64_sys_unlink+0xca/0x110 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f409e3dc457 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 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:00007ffe294b6538 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f409e3dc457 RDX: 00007ffe294b6570 RSI: 00007ffe294b6570 RDI: 00007ffe294b6600 RBP: 00007ffe294b6600 R08: 0000000000000001 R09: 00007ffe294b63d0 R10: 0000555556aebc7b R11: 0000000000000206 R12: 00007f409e436105 R13: 00007ffe294b76c0 R14: 0000555556aebc20 R15: 00007ffe294b7700 ---------------- Code disassembly (best guess): 0: 75 28 jne 0x2a 2: 0f 85 22 04 00 00 jne 0x42a 8: 49 c7 45 28 00 00 00 movq $0x0,0x28(%r13) f: 00 10: 48 c7 c6 c2 12 7d 81 mov $0xffffffff817d12c2,%rsi 17: 4c 89 ef mov %r13,%rdi 1a: e8 67 04 af ff callq 0xffaf0486 1f: 48 83 3c 24 00 cmpq $0x0,(%rsp) 24: 0f 85 53 01 00 00 jne 0x17d * 2a: 48 83 7b 18 00 cmpq $0x0,0x18(%rbx) <-- trapping instruction 2f: 0f 84 ef 04 00 00 je 0x524 35: 9c pushfq 36: 41 5d pop %r13 38: fa cli 39: 41 81 e5 00 02 00 00 and $0x200,%r13d