watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.4:17233] Modules linked in: irq event stamp: 2748105 hardirqs last enabled at (2748104): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2748105): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2736426): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2736431): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 17233 Comm: syz-executor.4 Not tainted 6.13.0-rc1-next-20241205 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:ieee80211_handle_queued_frames+0x5f/0x130 Code: df e8 65 d0 41 ff 49 89 c4 48 85 c0 0f 84 b5 00 00 00 e8 24 31 05 fd 49 8d bc 24 80 00 00 00 48 89 f8 48 c1 e8 03 0f b6 04 28 <84> c0 74 06 0f 8e bb 00 00 00 41 0f b6 bc 24 80 00 00 00 48 c7 c6 RSP: 0018:ffff88806cf09ee8 EFLAGS: 00000216 RAX: 0000000000000000 RBX: ffff88803cfe1610 RCX: 1ffffffff0fe04c7 RDX: ffff888015a4d340 RSI: ffffffff844cb14c RDI: ffff88803ce4b440 RBP: dffffc0000000000 R08: 0000000000000001 R09: fffffbfff0fde3e9 R10: ffffffff87ef1f4f R11: 0000000000000001 R12: ffff88803ce4b3c0 R13: ffff88803cfe0e20 R14: ffff88803cfe1668 R15: ffff88803cfe15e8 FS: 00007f7e6341b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f53807f6718 CR3: 000000000bdb6000 CR4: 0000000000350ef0 Call Trace: tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 96 1c a9 fc 48 89 ef e8 fe 8a a9 fc 80 e7 02 74 06 e8 b4 e4 d2 fc fb 65 ff 0d c4 9e 7c 7b <74> 07 5b 5d e9 93 1e 00 00 0f 1f 44 00 00 5b 5d e9 87 1e 00 00 0f RSP: 0018:ffff88803bc17760 EFLAGS: 00000246 RAX: 000000000029c12d RBX: 0000000000000246 RCX: 1ffffffff0fe04c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8487083c RBP: ffff888009402cc0 R08: 0000000000000001 R09: fffffbfff0fde3e9 R10: ffffffff87ef1f4f R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888009406640 R15: 0000000000000246 __put_partials+0xc4/0x110 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 ext4_inode_attach_jinode+0x118/0x230 ext4_file_open+0x347/0xd40 do_dentry_open+0x71c/0x1420 vfs_open+0x82/0x3f0 path_openat+0x1cf3/0x2980 do_filp_open+0x1e9/0x450 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7e65ea5b19 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:00007f7e6341b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f7e65fb8f60 RCX: 00007f7e65ea5b19 RDX: 0000000000101042 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007f7e65efff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd674c0eef R14: 00007f7e6341b300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: df e8 fucomip %st(0),%st 2: 65 d0 41 ff rolb %gs:-0x1(%rcx) 6: 49 89 c4 mov %rax,%r12 9: 48 85 c0 test %rax,%rax c: 0f 84 b5 00 00 00 je 0xc7 12: e8 24 31 05 fd callq 0xfd05313b 17: 49 8d bc 24 80 00 00 lea 0x80(%r12),%rdi 1e: 00 1f: 48 89 f8 mov %rdi,%rax 22: 48 c1 e8 03 shr $0x3,%rax 26: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax * 2a: 84 c0 test %al,%al <-- trapping instruction 2c: 74 06 je 0x34 2e: 0f 8e bb 00 00 00 jle 0xef 34: 41 0f b6 bc 24 80 00 movzbl 0x80(%r12),%edi 3b: 00 00 3d: 48 rex.W 3e: c7 .byte 0xc7 3f: c6 .byte 0xc6