loop4: detected capacity change from 0 to 2103296 EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir352853485/syzkaller.e5sYT2/20/file0 supports timestamps until 2038-01-19 (0x7fffffff) watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.0:5132] Modules linked in: irq event stamp: 10102477 hardirqs last enabled at (10102476): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (10102477): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (10079632): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (10079635): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 5132 Comm: syz-executor.0 Not tainted 5.10.238 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__iterate_interfaces+0x2/0x550 net/mac80211/util.c:770 Code: 0f 1f 84 00 00 00 00 00 55 48 89 fd e8 77 31 7c fd 48 89 ef be 10 00 00 00 5d e9 19 fd ff ff 66 0f 1f 84 00 00 00 00 00 41 57 <41> 56 49 89 fe 41 55 49 81 c6 78 19 00 00 41 54 55 53 89 f3 83 e3 RSP: 0018:ffff88806ce09ac0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffff88806ce09b20 RDX: ffffffff82c93bb0 RSI: 0000000000000002 RDI: ffff888047f68d00 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8686e6a7 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888047f68d00 R13: ffffffff82c93bb0 R14: ffff88806ce09b20 R15: ffff888046b3aa70 FS: 00007fa7204de700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555bfb10a830 CR3: 000000004bfac000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_addr_match+0x128/0x180 drivers/net/wireless/mac80211_hwsim.c:1066 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb76/0x1410 drivers/net/wireless/mac80211_hwsim.c:1504 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1588 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1652 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1669 __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:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:qlist_free_all+0xa0/0xe0 mm/kasan/quarantine.c:130 Code: 15 d5 21 5c 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 b3 21 5c 03 48 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 93 49 c7 44 24 08 00 00 00 00 49 c7 04 24 00 00 00 00 49 c7 44 RSP: 0018:ffff88804c007558 EFLAGS: 00000202 RAX: ffffea000038c100 RBX: 0000000000000000 RCX: ffffea000038c100 RDX: 0000000000000001 RSI: ffff88800e305180 RDI: ffff8880083fb280 RBP: dffffc0000000000 R08: 0000000000000011 R09: ffffffff816cd901 R10: ffff88800d531440 R11: 0000000000000001 R12: ffff88804c007590 R13: 0000000080000000 R14: ffffffff80000000 R15: ffff88800e305180 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x13b/0x310 mm/slub.c:2909 kmem_cache_zalloc include/linux/slab.h:654 [inline] __proc_create+0x2b3/0x8b0 fs/proc/generic.c:431 proc_create_reg+0xb2/0x180 fs/proc/generic.c:558 proc_create_data+0x84/0x110 fs/proc/generic.c:584 create_cache_proc_entries net/sunrpc/cache.c:1694 [inline] cache_register_net+0x1ea/0x5e0 net/sunrpc/cache.c:1727 rsi_cache_create_net net/sunrpc/auth_gss/svcauth_gss.c:1920 [inline] gss_svc_init_net+0x14f/0x4d0 net/sunrpc/auth_gss/svcauth_gss.c:1977 ops_init+0xbb/0x6b0 net/core/net_namespace.c:156 setup_net+0x2f4/0x900 net/core/net_namespace.c:348 copy_net_ns+0x2c0/0x5d0 net/core/net_namespace.c:518 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x3fb/0x4f0 kernel/nsproxy.c:179 copy_process+0x393a/0x78b0 kernel/fork.c:2214 kernel_clone+0xe7/0x980 kernel/fork.c:2582 __do_sys_clone3+0x1e5/0x320 kernel/fork.c:2857 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fa722f68b19 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:00007fa7204de188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fa72307bf60 RCX: 00007fa722f68b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000200001c0 RBP: 00007fa722fc2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe8043e4bf R14: 00007fa7204de300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.238 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:28 [inline] RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:99 [inline] RIP: 0010:queued_spin_lock_slowpath+0xa7/0x8c0 kernel/locking/qspinlock.c:326 Code: 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 df e8 a9 f1 44 00 <41> 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 eb 06 00 00 8b 2b 85 ed RSP: 0018:ffff88806cf09a38 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffffffff87a0a080 RCX: ffffffff8127be57 RDX: fffffbfff0f41411 RSI: 0000000000000004 RDI: ffffffff87a0a080 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff87a0a083 R10: fffffbfff0f41410 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f41410 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555bfb0d9678 CR3: 000000000cc92000 CR4: 0000000000350ee0 Call Trace: queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x1dc/0x260 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] mac80211_hwsim_tx_frame_no_nl.isra.0+0x6c8/0x1410 drivers/net/wireless/mac80211_hwsim.c:1450 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1588 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1652 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1669 __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:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:default_idle+0xe/0x20 arch/x86/kernel/process.c:712 Code: 4e ff ff ff 4c 89 e7 e8 90 a2 83 fd eb 8f 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 e9 07 00 00 00 0f 00 2d 24 0c 59 00 fb f4 1d 0c 37 00 cc cc cc cc cc cc cc cc cc cc cc cc cc 41 55 41 54 RSP: 0018:ffff888008987e70 EFLAGS: 00000202 RAX: ffffffff83e93390 RBX: 0000000000000001 RCX: ffffffff83e7af2c RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e93998 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf3c12b R10: ffffed100d9e7825 R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff85678908 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0xbf/0x2c0 kernel/sched/idle.c:112 cpuidle_idle_call kernel/sched/idle.c:194 [inline] do_idle+0x3b3/0x520 kernel/sched/idle.c:306 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:402 secondary_startup_64_no_verify+0xbe/0xcb ---------------- Code disassembly (best guess): 0: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 7: 00 8: 55 push %rbp 9: 48 89 fd mov %rdi,%rbp c: e8 77 31 7c fd callq 0xfd7c3188 11: 48 89 ef mov %rbp,%rdi 14: be 10 00 00 00 mov $0x10,%esi 19: 5d pop %rbp 1a: e9 19 fd ff ff jmpq 0xfffffd38 1f: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 26: 00 00 28: 41 57 push %r15 * 2a: 41 56 push %r14 <-- trapping instruction 2c: 49 89 fe mov %rdi,%r14 2f: 41 55 push %r13 31: 49 81 c6 78 19 00 00 add $0x1978,%r14 38: 41 54 push %r12 3a: 55 push %rbp 3b: 53 push %rbx 3c: 89 f3 mov %esi,%ebx 3e: 83 .byte 0x83 3f: e3 .byte 0xe3