loop2: detected capacity change from 0 to 40 watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.2:7970] Modules linked in: irq event stamp: 3688991 hardirqs last enabled at (3688990): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3688991): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3686680): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3686713): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 7970 Comm: syz-executor.2 Not tainted 6.12.0-next-20241128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_acquire.part.0+0x10e/0x320 Code: b6 c9 e8 65 a6 ff ff b8 ff ff ff ff 48 83 c4 28 65 0f c1 05 9c 49 d2 7e 83 f8 01 0f 85 aa 01 00 00 48 85 ed 0f 85 9b 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff88806ce09ad8 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff1100d9c135e RCX: 1ffff1100d9c1343 RDX: 1ffff11008391827 RSI: 0000000000000001 RDI: 0000000075eab062 RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff0fdddec R10: ffffffff87eeef67 R11: 00000000000c3a23 R12: ffffffff85c161c0 R13: ffff88801b698e20 R14: 1ffff1100d9c1378 R15: ffff88806ce09d88 FS: 00007faba0956700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d127000 CR3: 000000001b1e0000 CR4: 0000000000350ef0 Call Trace: sta_info_get_bss+0xb4/0x450 ieee80211_rx_for_interface+0x154/0x200 ieee80211_rx_list+0x1bec/0x2840 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 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:qlist_free_all+0x28/0x160 Code: 90 90 48 8b 07 48 85 c0 0f 84 41 01 00 00 41 57 41 56 41 55 49 89 fd 41 54 49 89 f4 55 53 eb 3e 48 63 95 c0 00 00 00 48 8b 18 <48> 89 ef 48 29 d0 48 89 c6 49 89 c6 e8 e7 f0 ff ff 49 89 c7 66 90 RSP: 0018:ffff88801562f140 EFLAGS: 00000246 RAX: ffff88800d3e5250 RBX: ffff88800d3e5940 RCX: ffffea000034f940 RDX: 0000000000000000 RSI: ffff888008c4f780 RDI: 0000000000080000 RBP: ffff888008c4f780 R08: ffff88800d3e55c8 R09: 00000000000d000b R10: ffffea000034f900 R11: 00000000000007e0 R12: 0000000000000000 R13: ffff88801562f178 R14: ffff88800d3e55c8 R15: ffff88800d3e55c8 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 __kmalloc_node_noprof+0x36c/0x4a0 alloc_slab_obj_exts+0x35/0x90 __memcg_slab_post_alloc_hook+0x2ea/0x8b0 kmem_cache_alloc_noprof+0x324/0x3d0 alloc_buffer_head+0x24/0x130 folio_alloc_buffers+0x289/0x540 create_empty_buffers+0x30/0x460 folio_create_buffers+0xec/0x120 __block_write_begin_int+0x27e/0x1570 block_write_begin+0x9a/0x1d0 cont_write_begin+0x554/0x810 fat_write_begin+0x64/0x150 generic_perform_write+0x284/0x7e0 __generic_file_write_iter+0x160/0x1a0 generic_file_write_iter+0xe1/0x340 iter_file_splice_write+0xa09/0x1060 direct_splice_actor+0x192/0x7a0 splice_direct_to_actor+0x348/0x9d0 do_splice_direct+0x17a/0x250 do_sendfile+0xaf4/0xe60 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faba33e0b19 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:00007faba0956188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007faba34f3f60 RCX: 00007faba33e0b19 RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000008 RBP: 00007faba343af6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffce0dd17ef R14: 00007faba0956300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: b6 c9 mov $0xc9,%dh 2: e8 65 a6 ff ff callq 0xffffa66c 7: b8 ff ff ff ff mov $0xffffffff,%eax c: 48 83 c4 28 add $0x28,%rsp 10: 65 0f c1 05 9c 49 d2 xadd %eax,%gs:0x7ed2499c(%rip) # 0x7ed249b4 17: 7e 18: 83 f8 01 cmp $0x1,%eax 1b: 0f 85 aa 01 00 00 jne 0x1cb 21: 48 85 ed test %rbp,%rbp 24: 0f 85 9b 01 00 00 jne 0x1c5 * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 01 c3 add %rax,%rbx 37: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 3e: 48 rex.W 3f: c7 .byte 0xc7