Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:4378] Modules linked in: irq event stamp: 5066949 hardirqs last enabled at (5066948): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (5066949): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (5042798): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (5042801): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4378 Comm: syz-executor.0 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rol32 include/linux/bitops.h:105 [inline] RIP: 0010:jhash2 include/linux/jhash.h:129 [inline] RIP: 0010:hash_stack lib/stackdepot.c:157 [inline] RIP: 0010:stack_depot_save+0x80/0x400 lib/stackdepot.c:249 Code: e2 44 8b 02 03 5a 08 83 ee 03 48 83 c2 0c 03 42 f8 41 29 d8 41 01 f8 89 df 01 c3 c1 c7 04 44 31 c7 29 f8 41 89 c0 89 f8 01 df c0 06 44 31 c0 29 c3 41 89 d8 89 c3 01 f8 c1 c3 08 44 31 c3 41 RSP: 0000:ffff88806ce09818 EFLAGS: 00000217 RAX: 0000000079e3a09c RBX: 00000000c19bf6e6 RCX: 0000000000000a20 RDX: ffff88806ce098bc RSI: 0000000000000007 RDI: 000000003b7f9782 RBP: 0000000000000a20 R08: 000000004588fe20 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88806ce09868 R13: 000000000000000e R14: 000000000000000e R15: 00000000000000e8 FS: 00007f45a5295700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020ffd140 CR3: 000000001765e000 CR4: 0000000000350ef0 Call Trace: kasan_save_stack+0x32/0x40 mm/kasan/common.c:50 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc9/0xd0 mm/kasan/common.c:461 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] kmem_cache_alloc_node+0x14b/0x330 mm/slub.c:2932 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:199 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:447 netdev_alloc_skb include/linux/skbuff.h:2857 [inline] dev_alloc_skb include/linux/skbuff.h:2870 [inline] __ieee80211_beacon_get+0x3af/0x1440 net/mac80211/tx.c:4876 ieee80211_beacon_get_tim+0x88/0x9f0 net/mac80211/tx.c:4990 ieee80211_beacon_get include/net/mac80211.h:4912 [inline] mac80211_hwsim_beacon_tx+0x111/0x940 drivers/net/wireless/mac80211_hwsim.c:1740 __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:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __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:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:wp_page_shared mm/memory.c:3075 [inline] RIP: 0010:do_wp_page+0x83a/0x1390 mm/memory.c:3180 Code: 00 00 00 48 85 db 0f 84 48 03 00 00 e8 1f 8e e0 ff 48 8d 7b 40 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 65 0a 00 00 48 83 7b 40 00 0f 84 19 03 00 00 e8 f0 8d e0 ff RSP: 0000:ffff88800e1a7d20 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffffffff845189a0 RCX: ffffc900013f9000 RDX: 1ffffffff08a313c RSI: ffffffff81601121 RDI: ffffffff845189e0 RBP: ffff88800e1a7de8 R08: 0000000000000001 R09: ffffea00012a3e77 R10: fffff940002547ce R11: 0000000000000001 R12: ffffea00012a3e40 R13: ffffea00012a3e74 R14: ffff88800e1a7e28 R15: ffff88800e1a7e00 handle_pte_fault mm/memory.c:4487 [inline] __handle_mm_fault mm/memory.c:4604 [inline] handle_mm_fault+0x1cc7/0x3500 mm/memory.c:4702 do_user_addr_fault+0x56e/0xc60 arch/x86/mm/fault.c:1345 handle_page_fault arch/x86/mm/fault.c:1402 [inline] exc_page_fault+0xa2/0x1a0 arch/x86/mm/fault.c:1458 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:571 RIP: 0033:0x7f45a7cbeafd Code: 0f 11 4e 10 f3 41 0f 6f 50 20 0f 11 56 20 f3 41 0f 6f 58 30 0f 11 5e 30 8b 41 40 89 c6 23 b1 00 01 00 00 83 c0 01 48 8d 34 b1 <89> 14 3e 89 41 40 31 c0 c3 66 2e 0f 1f 84 00 00 00 00 00 48 89 7c RSP: 002b:00007f45a5295178 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 00007f45a7e32f60 RCX: 0000000020ffd000 RDX: 0000000000000000 RSI: 0000000020ffd000 RDI: 0000000000000140 RBP: 00007f45a7d79f6d R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000581de R12: 0000000000000000 R13: 00007ffe122757bf R14: 00007f45a5295300 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 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. SELinux: unrecognized netlink message: protocol=6 nlmsg_type=35144 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=34247 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=53893 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=53481 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=35656 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=33608 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=35140 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=41 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=51 sclass=netlink_xfrm_socket pid=4407 comm=syz-executor.7 ---------------- Code disassembly (best guess): 0: e2 44 loop 0x46 2: 8b 02 mov (%rdx),%eax 4: 03 5a 08 add 0x8(%rdx),%ebx 7: 83 ee 03 sub $0x3,%esi a: 48 83 c2 0c add $0xc,%rdx e: 03 42 f8 add -0x8(%rdx),%eax 11: 41 29 d8 sub %ebx,%r8d 14: 41 01 f8 add %edi,%r8d 17: 89 df mov %ebx,%edi 19: 01 c3 add %eax,%ebx 1b: c1 c7 04 rol $0x4,%edi 1e: 44 31 c7 xor %r8d,%edi 21: 29 f8 sub %edi,%eax 23: 41 89 c0 mov %eax,%r8d 26: 89 f8 mov %edi,%eax 28: 01 df add %ebx,%edi * 2a: c1 c0 06 rol $0x6,%eax <-- trapping instruction 2d: 44 31 c0 xor %r8d,%eax 30: 29 c3 sub %eax,%ebx 32: 41 89 d8 mov %ebx,%r8d 35: 89 c3 mov %eax,%ebx 37: 01 f8 add %edi,%eax 39: c1 c3 08 rol $0x8,%ebx 3c: 44 31 c3 xor %r8d,%ebx 3f: 41 rex.B