loop5: detected capacity change from 0 to 264192 watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.6:4445] Modules linked in: irq event stamp: 4548131 hardirqs last enabled at (4548130): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4548131): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4484282): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4484285): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 4445 Comm: syz-executor.6 Not tainted 6.1.0-rc8-next-20221207 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__read_once_word_nocheck+0x3/0x10 Code: e9 8b fd ff ff e8 3d 91 6a 00 e9 43 fd ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 fc 5a 2f 03 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffff88806ce096a8 EFLAGS: 00000202 RAX: ffffffff8139af46 RBX: 0000000000000002 RCX: 0000000000000002 RDX: ffff88806ce09f01 RSI: ffff88806ce09f28 RDI: ffff88806ce09f28 RBP: ffff88806ce09788 R08: ffffffff860906e2 R09: ffffffff860906e6 R10: ffffed100d9c12f3 R11: ffff88806ce09770 R12: ffff88806ce09771 R13: ffff88806ce09790 R14: ffff88806ce09730 R15: ffffffff860906e7 FS: 00007fd8b0bde700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0643893000 CR3: 000000001a7ac000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0x967/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x82/0x90 __kmalloc_node_track_caller+0x53/0xb0 __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+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __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:unwind_next_frame+0xd99/0x2130 Code: c0 74 08 3c 03 0f 8e 92 12 00 00 41 3b 1e 0f 84 04 08 00 00 bf 01 00 00 00 e8 13 18 0f 00 b8 01 00 00 00 65 8b 15 7f 9f f0 7e <85> d2 0f 85 9e f2 ff ff 0f 1f 44 00 00 e9 94 f2 ff ff 48 8b 74 24 RSP: 0018:ffff88804567f998 EFLAGS: 00000257 RAX: 0000000000000001 RBX: 00007fd8b0bddf48 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88804567ff58 RDI: 0000000000000001 RBP: ffff888045678000 R08: ffffffff86467c5c R09: ffffffff86467c60 R10: ffffed1008acff50 R11: 0000000000038001 R12: ffff88804567ff58 R13: ffff88804567fa78 R14: ffff88804567fa18 R15: 0000000000000001 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc_lru+0x277/0x760 shmem_alloc_inode+0x27/0x50 alloc_inode+0x63/0x240 new_inode+0x25/0x1f0 shmem_get_inode+0x191/0xdb0 __shmem_file_setup+0xb8/0x320 __do_sys_memfd_create+0x1ca/0x4e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fd8b3668b19 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:00007fd8b0bddf48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 00007fd8b3668b19 RDX: 0000000010020000 RSI: 0000000000000000 RDI: 00007fd8b36c20fb RBP: 0000000000000002 R08: 0000020000010000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000008100000 R13: 00000000200000c0 R14: 0000000008100000 R15: 0000000020000040 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4453 Comm: syz-executor.5 Not tainted 6.1.0-rc8-next-20221207 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 be 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84420f8b RDX: fffffbfff0b483a1 RSI: 0000000000000004 RDI: ffffffff85a41d00 RBP: ffffffff85a41d00 R08: 0000000000000000 R09: ffffffff85a41d03 R10: fffffbfff0b483a0 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b483a0 R14: 0000000000000001 R15: 1ffff1100d9e1346 FS: 00007f20f4819700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe4c1faf98 CR3: 00000000448c2000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __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:__x86_return_thunk+0x0/0x3c Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc f3 0f 1e fa f6 cc 0f ae e8 eb f9 cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 2e RSP: 0018:ffff88800d147640 EFLAGS: 00000296 RAX: 0000000000000001 RBX: ffffffff81385470 RCX: 0000000000000000 RDX: 1ffff11001a28ef3 RSI: ffffffff817d3faa RDI: ffff88800d14771c RBP: ffff88800d1476e0 R08: ffffffff860eee2e R09: ffffffff860eee32 R10: ffffed1001a28ed6 R11: ffff88800d147688 R12: ffff88800d147710 R13: 0000000000000000 R14: ffff888017fe9ac0 R15: ffff888008441640 arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 __kmem_cache_free+0xcf/0x410 security_inode_init_security+0x1d9/0x360 __ext4_new_inode+0x39a9/0x55e0 ext4_mkdir+0x33e/0xb20 vfs_mkdir+0x495/0x740 do_mkdirat+0x16e/0x2d0 __x64_sys_mkdir+0xf6/0x150 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f20f72a2c27 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 53 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:00007f20f4818fa8 EFLAGS: 00000213 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 00007f20f72a2c27 RDX: 0000000000000007 RSI: 00000000000001ff RDI: 00000000200000c0 RBP: 00007f20f4819040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000213 R12: 0000000020000000 R13: 00000000200000c0 R14: 00007f20f4819000 R15: 0000000020000040 ---------------- Code disassembly (best guess): 0: e9 8b fd ff ff jmpq 0xfffffd90 5: e8 3d 91 6a 00 callq 0x6a9147 a: e9 43 fd ff ff jmpq 0xfffffd52 f: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 16: 00 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 48 8b 07 mov (%rdi),%rax * 2a: e9 fc 5a 2f 03 jmpq 0x32f5b2b <-- trapping instruction 2f: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 36: 00 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop