loop3: detected capacity change from 0 to 4 EXT4-fs (loop3): invalid inodes per group: 16318496 watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.7:13255] Modules linked in: irq event stamp: 4085647 hardirqs last enabled at (4085646): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4085647): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4048968): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (4048971): [] irq_exit_rcu+0x93/0xc0 CPU: 1 PID: 13255 Comm: syz-executor.7 Not tainted 6.4.0-rc2-next-20230515 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x4/0x170 Code: 62 4e 46 00 e9 ac fd ff ff 48 89 df e8 25 4e 46 00 e9 3e fd ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7 10 48 89 fa RSP: 0018:ffff88806cf09888 EFLAGS: 00000282 RAX: ffffffff8181185d RBX: ffffffff813abe20 RCX: 0000000000000001 RDX: 1ffff1100d9e131d RSI: ffffffff8181185d RDI: ffff88806cf09958 RBP: ffff88806cf09928 R08: ffffffff8612bc96 R09: ffffffff8612bc9a R10: 0000000000038001 R11: ffff88806cf098d0 R12: ffff88806cf09958 R13: 0000000000000000 R14: ffff888037150000 R15: ffff888038dc0e30 FS: 00007f25b7f86700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556e41c58 CR3: 000000002054c000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0xff/0x4a0 skb_release_data.isra.0+0x708/0x840 consume_skb+0x119/0x2e0 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x107/0x1b0 Code: 39 45 28 75 5e 48 c7 45 28 00 00 00 00 48 c7 c6 62 7b 80 81 48 89 ef e8 97 02 ad ff 48 85 db 74 06 e8 9d b1 d2 ff fb 4d 85 f6 <74> 1e 5b 4c 89 f6 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 92 fa ff RSP: 0018:ffff88803a2a7510 EFLAGS: 00000246 RAX: 00000000003d1959 RBX: 0000000000000200 RCX: ffffffff812cd9ff RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81807b83 RBP: ffff88806cf3dfe0 R08: 0000000000000001 R09: fffffbfff0ef2d3d R10: ffffffff877969ef R11: 0000000000000001 R12: ffff88800844f780 R13: ffffea0000f81ec0 R14: 0000000000000000 R15: 0000000000000002 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc_node+0x229/0x3a0 __alloc_skb+0x28c/0x330 inet_netconf_notify_devconf+0xe1/0x260 __devinet_sysctl_register+0x1c6/0x280 devinet_init_net+0x17f/0x650 ops_init+0xbb/0x6b0 setup_net+0x3d9/0x990 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2b78/0x73b0 kernel_clone+0xeb/0x7d0 __do_sys_clone3+0x1d5/0x250 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f25baa10b19 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:00007f25b7f86188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f25bab23f60 RCX: 00007f25baa10b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f25baa6af6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeba6bee4f R14: 00007f25b7f86300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 loop2: detected capacity change from 0 to 512 EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs error (device loop2): ext4_validate_block_bitmap:431: comm syz-executor.2: bg 0: block 2: invalid block bitmap loop3: detected capacity change from 0 to 4 EXT4-fs (loop3): invalid inodes per group: 16318496 EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop2: detected capacity change from 0 to 512 EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs error (device loop2): ext4_validate_block_bitmap:431: comm syz-executor.2: bg 0: block 2: invalid block bitmap loop3: detected capacity change from 0 to 512 EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs error (device loop3): ext4_validate_block_bitmap:431: comm syz-executor.3: bg 0: block 2: invalid block bitmap EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop3: detected capacity change from 0 to 512 loop2: detected capacity change from 0 to 512 loop2: detected capacity change from 0 to 512 loop3: detected capacity change from 0 to 512 EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. ---------------- Code disassembly (best guess), 4 bytes skipped: 0: e9 ac fd ff ff jmpq 0xfffffdb1 5: 48 89 df mov %rbx,%rdi 8: e8 25 4e 46 00 callq 0x464e32 d: e9 3e fd ff ff jmpq 0xfffffd50 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 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 2d: fc ff df 30: 55 push %rbp 31: 53 push %rbx 32: 48 89 fb mov %rdi,%rbx 35: 48 83 c7 10 add $0x10,%rdi 39: 48 89 fa mov %rdi,%rdx