watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:4928] Modules linked in: irq event stamp: 4597657 hardirqs last enabled at (4597656): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4597657): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (4595058): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4595061): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4928 Comm: syz-executor.0 Not tainted 5.10.229 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:196 Code: ff ff ff b8 08 00 00 00 4d 8b 17 49 8b 16 48 0f bd c8 48 63 c9 e9 5e ff ff ff 4c 01 d2 49 89 17 e9 cd fd ff ff 90 48 8b 34 24 <65> 48 8b 14 25 80 6f 02 00 65 8b 05 ac b0 c1 7e a9 00 01 ff 00 74 RSP: 0018:ffff88806ce098d0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000006 RCX: ffffffff83bdfd07 RDX: 0000000000000001 RSI: ffffffff83bdfbf0 RDI: 0000000000000005 RBP: ffff88806ce09d98 R08: 0000000000000001 R09: ffff88801cf58d5f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000007 R13: ffff88801d2f4bc0 R14: ffff88806ce09db8 R15: 0000000000000000 FS: 00007f9e717d9700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005628bfc9f110 CR3: 00000000196b6000 CR4: 0000000000350ef0 Call Trace: ieee80211_rx_get_bigtk+0xf0/0x4b0 net/mac80211/rx.c:1885 ieee80211_rx_h_decrypt net/mac80211/rx.c:2020 [inline] ieee80211_rx_handlers+0x3631/0xa3f0 net/mac80211/rx.c:3866 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3918 [inline] ieee80211_prepare_and_rx_handle+0x17d4/0x5890 net/mac80211/rx.c:4605 __ieee80211_rx_handle_packet net/mac80211/rx.c:4666 [inline] ieee80211_rx_list+0xdd0/0x2370 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:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:193 Code: ff ff b9 ff ff ff ff b8 08 00 00 00 4d 8b 17 49 8b 16 48 0f bd c8 48 63 c9 e9 5e ff ff ff 4c 01 d2 49 89 17 e9 cd fd ff ff 90 <48> 8b 34 24 65 48 8b 14 25 80 6f 02 00 65 8b 05 ac b0 c1 7e a9 00 RSP: 0018:ffff888019727130 EFLAGS: 00000202 RAX: 0000000000000002 RBX: ffff88804b234000 RCX: ffffffff82009a2a RDX: 0000000000000070 RSI: ffff888020168000 RDI: 0000000000000001 RBP: ffff88804b234001 R08: 0000000000000001 R09: ffff888047909007 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000070 R13: ffff88800943c001 R14: ffff88804b234001 R15: dffffc0000000000 vsscanf+0xfc/0x25e0 lib/vsprintf.c:3283 sscanf+0xbb/0xf0 lib/vsprintf.c:3544 __dev_alloc_name net/core/dev.c:1210 [inline] dev_alloc_name_ns+0x35d/0x6c0 net/core/dev.c:1244 ieee802154_if_add+0x142/0x1040 net/mac802154/iface.c:632 ieee802154_add_iface_deprecated+0x3e/0x60 net/mac802154/cfg.c:26 rdev_add_virtual_intf_deprecated net/ieee802154/rdev-ops.h:16 [inline] ieee802154_add_iface+0x44d/0x8f0 net/ieee802154/nl-phy.c:218 genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x33c/0x5a0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2500 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline] netlink_unicast+0x549/0x7f0 net/netlink/af_netlink.c:1348 netlink_sendmsg+0x90f/0xdf0 net/netlink/af_netlink.c:1916 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: 0033:0x7f9e74263b19 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:00007f9e717d9188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9e74376f60 RCX: 00007f9e74263b19 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00007f9e742bdf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc95bbd80f R14: 00007f9e717d9300 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 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: b8 08 00 00 00 mov $0x8,%eax 5: 4d 8b 17 mov (%r15),%r10 8: 49 8b 16 mov (%r14),%rdx b: 48 0f bd c8 bsr %rax,%rcx f: 48 63 c9 movslq %ecx,%rcx 12: e9 5e ff ff ff jmpq 0xffffff75 17: 4c 01 d2 add %r10,%rdx 1a: 49 89 17 mov %rdx,(%r15) 1d: e9 cd fd ff ff jmpq 0xfffffdef 22: 90 nop 23: 48 8b 34 24 mov (%rsp),%rsi * 27: 65 48 8b 14 25 80 6f mov %gs:0x26f80,%rdx <-- trapping instruction 2e: 02 00 30: 65 8b 05 ac b0 c1 7e mov %gs:0x7ec1b0ac(%rip),%eax # 0x7ec1b0e3 37: a9 00 01 ff 00 test $0xff0100,%eax 3c: 74 .byte 0x74