watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.0:4641] Modules linked in: irq event stamp: 4875699 hardirqs last enabled at (4875698): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4875699): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (4847182): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4847185): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 4641 Comm: syz-executor.0 Not tainted 5.10.237 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xc93/0x1a90 arch/x86/kernel/unwind_orc.c:545 Code: 80 3c 02 00 0f 85 f0 0b 00 00 48 89 ea 49 c7 45 58 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 48 89 ea <83> e2 07 38 d0 7f 08 84 c0 0f 85 8e 0b 00 00 4c 89 fa 4c 89 c6 41 RSP: 0018:ffff88806cf097b8 EFLAGS: 00000217 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff85d47342 RDX: ffff88806cf098c5 RSI: 0000000000000001 RDI: ffff88806cf098e8 RBP: ffff88806cf098c5 R08: ffffffff85d47347 R09: ffff88801dd6e920 R10: 0000000000032042 R11: 1ffff1100d9e12ff R12: ffff88801dd6e920 R13: ffff88806cf09890 R14: 1ffff1100d9e12ff R15: ffffffff85d47346 FS: 00007ff85819f700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563a06fc44f8 CR3: 00000000493e6000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x83/0xf0 arch/x86/kernel/stacktrace.c:25 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] kmem_cache_free+0xa7/0x2d0 mm/slub.c:3165 kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:638 __kfree_skb net/core/skbuff.c:695 [inline] consume_skb net/core/skbuff.c:850 [inline] consume_skb+0x11d/0x2b0 net/core/skbuff.c:844 mac80211_hwsim_tx_frame+0x15a/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1717 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:cfg80211_sinfo_alloc_tid_stats+0xb4/0x110 net/wireless/util.c:2065 Code: e8 21 1f cc fd 48 8d bd c0 00 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 11 00 75 3b 48 89 85 c0 00 00 00 <48> 83 f8 01 45 19 e4 41 83 e4 f4 e8 8c 6c a0 fd 44 89 e0 48 83 c4 RSP: 0018:ffff88801dd6ea08 EFLAGS: 00000246 RAX: ffff888045bb0000 RBX: 0000000000000000 RCX: 1ffff1100301fa58 RDX: dffffc0000000000 RSI: ffffffff8400011f RDI: ffff8880180fd2c0 RBP: ffff8880180fd200 R08: 00000000dbcdb826 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000dc0 R13: 0000000000000cc0 R14: ffff8880180fd200 R15: ffff888047770000 sta_set_sinfo+0x2040/0x35c0 net/mac80211/sta_info.c:2441 __sta_info_destroy_part2+0x2ce/0x4f0 net/mac80211/sta_info.c:1118 __sta_info_flush+0x3a0/0x520 net/mac80211/sta_info.c:1240 sta_info_flush net/mac80211/sta_info.h:838 [inline] ieee80211_ibss_disconnect+0x115/0x750 net/mac80211/ibss.c:706 ieee80211_ibss_leave+0x12/0x160 net/mac80211/ibss.c:1875 rdev_leave_ibss net/wireless/rdev-ops.h:545 [inline] __cfg80211_leave_ibss+0x183/0x4f0 net/wireless/ibss.c:212 __cfg80211_leave+0x14b/0x370 net/wireless/core.c:1177 cfg80211_leave net/wireless/core.c:1228 [inline] cfg80211_netdev_notifier_call+0x385/0x10c0 net/wireless/core.c:1341 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xb3/0x110 kernel/notifier.c:410 call_netdevice_notifiers_info+0xba/0x130 net/core/dev.c:2047 call_netdevice_notifiers_extack net/core/dev.c:2059 [inline] call_netdevice_notifiers net/core/dev.c:2073 [inline] __dev_close_many+0xf3/0x2f0 net/core/dev.c:1593 __dev_close net/core/dev.c:1631 [inline] __dev_change_flags+0x299/0x6e0 net/core/dev.c:8525 dev_change_flags+0x8a/0x160 net/core/dev.c:8598 do_setlink+0x911/0x3ac0 net/core/rtnetlink.c:2732 __rtnl_newlink+0xc3e/0x1700 net/core/rtnetlink.c:3410 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3530 rtnetlink_rcv_msg+0x423/0xbb0 net/core/rtnetlink.c:5610 netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2485 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline] netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1333 netlink_sendmsg+0x90f/0xe00 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x154/0x190 net/socket.c:663 ____sys_sendmsg+0x70d/0x870 net/socket.c:2378 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2461 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7ff85ac29b19 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:00007ff85819f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ff85ad3cf60 RCX: 00007ff85ac29b19 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004 RBP: 00007ff85ac83f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb5f2fe0f R14: 00007ff85819f300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 0 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:711 Process accounting resumed tmpfs: Unknown parameter 'mpol]å£' tmpfs: Unknown parameter 'mpol]å£' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. FAT-fs (loop4): Unrecognized mount option "uid<00000000000000000000" or missing value loop1: detected capacity change from 0 to 33559552 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. loop2: detected capacity change from 0 to 2103296 FAT-fs (loop5): Unrecognized mount option "allow_utime=0000000000000000000Fmr+ÁÑæ÷Wz‹" or missing value netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir287761823/syzkaller.kGm7o5/8/file0 supports timestamps until 2038-01-19 (0x7fffffff) FAT-fs (loop5): Unrecognized mount option "allow_utime=0000000000000000000Fmr+ÁÑæ÷Wz‹" or missing value netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. loop0: detected capacity change from 0 to 33559552 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready ---------------- Code disassembly (best guess): 0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 4: 0f 85 f0 0b 00 00 jne 0xbfa a: 48 89 ea mov %rbp,%rdx d: 49 c7 45 58 00 00 00 movq $0x0,0x58(%r13) 14: 00 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 c1 ea 03 shr $0x3,%rdx 23: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 27: 48 89 ea mov %rbp,%rdx * 2a: 83 e2 07 and $0x7,%edx <-- trapping instruction 2d: 38 d0 cmp %dl,%al 2f: 7f 08 jg 0x39 31: 84 c0 test %al,%al 33: 0f 85 8e 0b 00 00 jne 0xbc7 39: 4c 89 fa mov %r15,%rdx 3c: 4c 89 c6 mov %r8,%rsi 3f: 41 rex.B