watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.3:4507] Modules linked in: irq event stamp: 142908 hardirqs last enabled at (142907): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (142908): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (142846): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (142839): [] irq_exit_rcu+0x93/0xc0 CPU: 1 PID: 4507 Comm: syz-executor.3 Not tainted 6.4.0-rc6-next-20230615 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x20 Code: bf 03 00 00 00 e9 58 fe 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 f3 0f 1e fa 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 2a fe ff ff 66 2e 0f 1f 84 00 00 00 RSP: 0018:ffff8880160c7320 EFLAGS: 00000206 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffffff83c3569d RDX: 0000000000040000 RSI: 0000000008000000 RDI: 0000000000000000 RBP: 0000000008000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff8880454d4a00 R15: 0000000000000001 FS: 00007f6e91841700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c330000 CR3: 0000000006856000 CR4: 0000000000350ee0 Call Trace: __ip6_append_data.isra.0+0xc9d/0x4560 ip6_append_data+0x1d4/0x530 rawv6_sendmsg+0x156e/0x3dc0 inet_sendmsg+0x121/0x150 sock_sendmsg+0x19b/0x200 splice_to_socket+0x949/0xe10 direct_splice_actor+0x119/0x180 splice_direct_to_actor+0x349/0x9d0 do_splice_direct+0x1bb/0x290 do_sendfile+0xb6b/0x1370 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f6e942ecb19 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:00007f6e91841188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f6e94400020 RCX: 00007f6e942ecb19 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000007 RBP: 00007f6e94346f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000001a000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbd9a68bf R14: 00007f6e91841300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 60 Comm: kworker/0:3 Not tainted 6.4.0-rc6-next-20230615 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: events cfg80211_wiphy_work RIP: 0010:lock_release+0x2b3/0x680 Code: 83 6b 22 20 66 f7 43 22 e0 ff 0f 85 16 01 00 00 4c 89 ca 44 8b 64 24 50 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e aa 02 00 00 48 89 da 45 89 a7 e8 09 00 00 RSP: 0018:ffff88800ff6f338 EFLAGS: 00000012 RAX: 0000000000000000 RBX: ffff88800ff60a90 RCX: ffff88800ff6f388 RDX: 1ffff11001fec13d RSI: 0000000000000000 RDI: ffff88800ff60ab2 RBP: 1ffff11001fede69 R08: 0000000000000001 R09: ffff88800ff609e8 R10: ffffffff85d3a917 R11: 0000000000000001 R12: 0000000000000004 R13: ffffffff81806c72 R14: 0000000000000005 R15: ffff88800ff60000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005594dc57e618 CR3: 000000000e72a000 CR4: 0000000000350ef0 Call Trace: ___slab_alloc+0x219/0x1190 kmem_cache_alloc+0x34e/0x370 __create_object+0x3c/0xc90 __kmem_cache_alloc_node+0x206/0x320 __kmalloc+0x4a/0x160 cfg80211_inform_single_bss_frame_data+0x2d6/0xf30 cfg80211_inform_bss_frame_data+0xc3/0xcb0 ieee80211_bss_info_update+0x34f/0xb40 ieee80211_ibss_rx_queued_mgmt+0x198e/0x2e70 ieee80211_iface_work+0x9bf/0xcb0 cfg80211_wiphy_work+0x1f7/0x290 process_one_work+0xabf/0x1770 worker_thread+0x64f/0x12a0 kthread+0x33f/0x440 ret_from_fork+0x2c/0x50 ---------------- Code disassembly (best guess): 0: bf 03 00 00 00 mov $0x3,%edi 5: e9 58 fe ff ff jmpq 0xfffffe62 a: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 11: 00 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 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: f3 0f 1e fa endbr64 26: 48 8b 0c 24 mov (%rsp),%rcx * 2a: 89 f2 mov %esi,%edx <-- trapping instruction 2c: 89 fe mov %edi,%esi 2e: bf 05 00 00 00 mov $0x5,%edi 33: e9 2a fe ff ff jmpq 0xfffffe62 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax)