syz-executor.3[14908]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set loop3: detected capacity change from 0 to 264192 watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.2:14898] Modules linked in: irq event stamp: 5429991 hardirqs last enabled at (5429990): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5429991): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5368968): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (5368971): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 14898 Comm: syz-executor.2 Not tainted 6.5.0-rc6-next-20230818 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 Code: be b0 01 00 00 e8 a0 ff ff ff 31 c0 e9 e9 4b 0f 03 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 8b 05 4d fc b5 7e 89 c1 48 8b 34 24 81 e1 00 01 00 RSP: 0018:ffff88806ce099a8 EFLAGS: 00000212 RAX: 0000000000000000 RBX: ffff88806ce09a90 RCX: 0000000000000100 RDX: ffff888015409b40 RSI: ffffffff8113d386 RDI: ffff88806ce09aa0 RBP: ffff88806ce09a90 R08: 0000000000000004 R09: 0000000000000002 R10: 0000000000000002 R11: 0000000000000001 R12: ffff88806ce02000 R13: ffff88806ce0a000 R14: ffff88806ce09a98 R15: 0000000000000001 FS: 00007f8164260700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f816423f718 CR3: 0000000037bd0000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0x1d34/0x25d0 __unwind_start+0x64f/0x8e0 arch_stack_walk+0x8f/0x160 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2b/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0x10d/0x4d0 rcu_core+0x8e1/0x28f0 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:___cache_free+0x6f/0x100 Code: c2 f6 c2 01 0f 85 92 00 00 00 66 90 49 8b 02 f6 c4 08 b8 00 00 00 00 4c 0f 44 d0 48 8b 07 65 48 03 05 65 00 7f 7e 4c 8b 40 08 <4c> 39 50 10 75 54 4c 8b 18 8b 47 28 49 8d 48 40 4c 89 c2 4c 89 1c RSP: 0018:ffff8880405ef428 EFLAGS: 00000286 RAX: ffffe8ffffc16730 RBX: ffff888036859b40 RCX: ffff888036859b40 RDX: ffff88800e235280 RSI: ffff888036859b40 RDI: ffff88800e235280 RBP: ffff8880405ef438 R08: 0000000000005440 R09: ffffffff81836b9f R10: ffffea0000da1640 R11: 00000000800d000b R12: dffffc0000000000 R13: ffff8880405ef488 R14: ffff88800e235280 R15: ffff888036859b40 qlist_free_all+0x6d/0x190 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x17b/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc+0x21f/0x390 jbd2__journal_start+0x194/0x810 __ext4_journal_start_sb+0x3d7/0x560 __ext4_new_inode+0x2df9/0x53d0 ext4_create+0x2e4/0x4e0 lookup_open.isra.0+0x1028/0x1400 path_openat+0x96c/0x2710 do_filp_open+0x1ba/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f8166ceab19 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:00007f8164260188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f8166dfdf60 RCX: 00007f8166ceab19 RDX: 0000000000000042 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007f8166d44f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000124 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd774341ef R14: 00007f8164260300 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: be b0 01 00 00 mov $0x1b0,%esi 5: e8 a0 ff ff ff callq 0xffffffaa a: 31 c0 xor %eax,%eax c: e9 e9 4b 0f 03 jmpq 0x30f4bfa 11: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 18: 00 00 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: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 65 8b 05 4d fc b5 7e mov %gs:0x7eb5fc4d(%rip),%eax # 0x7eb5fc82 35: 89 c1 mov %eax,%ecx 37: 48 8b 34 24 mov (%rsp),%rsi 3b: 81 .byte 0x81 3c: e1 00 loope 0x3e 3e: 01 00 add %eax,(%rax)