[ 29.576875][ T361] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.596286][ T361] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.604196][ T361] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.616776][ T107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.625127][ T107] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 29.697338][ T366] syz-executor.0 (366) used greatest stack depth: 19544 bytes left [ 30.416614][ T179] device bridge_slave_1 left promiscuous mode [ 30.422617][ T179] bridge0: port 2(bridge_slave_1) entered disabled state [ 30.431046][ T179] device bridge_slave_0 left promiscuous mode [ 30.437173][ T179] bridge0: port 1(bridge_slave_0) entered disabled state Warning: Permanently added '10.128.1.205' (ED25519) to the list of known hosts. 2024/07/15 00:55:42 ignoring optional flag "sandboxArg"="0" 2024/07/15 00:55:43 parsed 1 programs 2024/07/15 00:55:43 executed programs: 0 [ 47.265147][ T414] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.272543][ T414] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.280445][ T414] device bridge_slave_0 entered promiscuous mode [ 47.287355][ T414] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.294197][ T414] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.302068][ T414] device bridge_slave_1 entered promiscuous mode [ 47.344533][ T414] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.351795][ T414] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.359098][ T414] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.366560][ T414] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.388614][ T371] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.396335][ T371] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.404009][ T371] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 47.412521][ T371] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.422332][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.431071][ T24] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.438299][ T24] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.456450][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.465146][ T24] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.472281][ T24] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.480178][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.489327][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.502328][ T371] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 47.526614][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 47.535124][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 47.544386][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 47.552815][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 47.583366][ T23] kauditd_printk_skb: 15 callbacks suppressed [ 47.583373][ T23] audit: type=1400 audit(1721004943.420:91): avc: denied { mounton } for pid=419 comm="syz-executor.0" path="/root/syzkaller-testdir2411821675/syzkaller.d4l556/0/file0" dev="sda1" ino=1937 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 47.628062][ T420] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 47.638028][ T23] audit: type=1400 audit(1721004943.480:92): avc: denied { mount } for pid=419 comm="syz-executor.0" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 47.649854][ T419] EXT4-fs error (device loop0): ext4_mb_generate_buddy:748: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 47.662508][ T23] audit: type=1400 audit(1721004943.480:93): avc: denied { write } for pid=419 comm="syz-executor.0" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 47.698490][ T420] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 [ 47.698512][ T23] audit: type=1400 audit(1721004943.480:94): avc: denied { add_name } for pid=419 comm="syz-executor.0" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 47.711161][ T420] EXT4-fs (loop0): This should not happen!! Data will be lost [ 47.711161][ T420] [ 47.731532][ T23] audit: type=1400 audit(1721004943.480:95): avc: denied { create } for pid=419 comm="syz-executor.0" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 47.741896][ T420] EXT4-fs (loop0): Total free blocks count 0 [ 47.762534][ T23] audit: type=1400 audit(1721004943.490:96): avc: denied { read write open } for pid=419 comm="syz-executor.0" path="/root/syzkaller-testdir2411821675/syzkaller.d4l556/0/file0/bus" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 47.768911][ T420] EXT4-fs (loop0): Free/Dirty block details [ 47.796835][ T23] audit: type=1400 audit(1721004943.490:97): avc: denied { map } for pid=419 comm="syz-executor.0" path="/root/syzkaller-testdir2411821675/syzkaller.d4l556/0/file0/bus" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 47.802609][ T420] EXT4-fs (loop0): free_blocks=2415919104 [ 47.829237][ T23] audit: type=1400 audit(1721004943.490:98): avc: denied { execute } for pid=419 comm="syz-executor.0" path="/root/syzkaller-testdir2411821675/syzkaller.d4l556/0/file0/bus" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 47.835132][ T420] EXT4-fs (loop0): dirty_blocks=16 [ 47.868699][ T420] EXT4-fs (loop0): Block reservation details [ 47.874426][ T420] EXT4-fs (loop0): i_reserved_data_blocks=1 [ 47.884135][ T23] audit: type=1400 audit(1721004943.730:99): avc: denied { unmount } for pid=414 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 47.904816][ T179] ------------[ cut here ]------------ [ 47.910522][ T179] kernel BUG at fs/ext4/inode.c:2844! [ 47.916167][ T179] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 47.922041][ T179] CPU: 1 PID: 179 Comm: kworker/u4:2 Not tainted 5.4.276-syzkaller-04917-g58de09405d1e #0 [ 47.932619][ T179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 47.943554][ T179] Workqueue: writeback wb_workfn (flush-7:0) [ 47.949435][ T179] RIP: 0010:ext4_writepages+0x3c96/0x3cc0 [ 47.955176][ T179] Code: b0 9b ff 31 ff 89 de e8 28 b0 9b ff 45 84 f6 75 2e e8 0e ae 9b ff 49 bf 00 00 00 00 00 fc ff df e9 1d f9 ff ff e8 fa ad 9b ff <0f> 0b e8 f3 ad 9b ff 0f 0b e8 ec ad 9b ff e8 27 c9 37 ff eb 99 e8 [ 47.975140][ T179] RSP: 0018:ffff8881e4e2f0e0 EFLAGS: 00010293 [ 47.981129][ T179] RAX: ffffffff81c88b06 RBX: 0000010000000000 RCX: ffff8881ec136e40 [ 47.989403][ T179] RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000 [ 47.997315][ T179] RBP: ffff8881e4e2f4d0 R08: ffffffff81c85756 R09: ffffed103d0dedd8 [ 48.005241][ T179] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e86f6f68 [ 48.013837][ T179] R13: 0000000000000001 R14: 0000010410000000 R15: dffffc0000000000 [ 48.022988][ T179] FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 48.032559][ T179] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.039388][ T179] CR2: 00007fff5507cff8 CR3: 00000001da9c0000 CR4: 00000000003406a0 [ 48.047210][ T179] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.055375][ T179] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.063400][ T179] Call Trace: [ 48.066788][ T179] ? __die+0xb4/0x100 [ 48.071254][ T179] ? die+0x26/0x50 [ 48.074825][ T179] ? do_trap+0x1e7/0x340 [ 48.078990][ T179] ? ext4_writepages+0x3c96/0x3cc0 [ 48.083966][ T179] ? ext4_writepages+0x3c96/0x3cc0 [ 48.089003][ T179] ? do_invalid_op+0xfb/0x110 [ 48.093602][ T179] ? ext4_writepages+0x3c96/0x3cc0 [ 48.099355][ T179] ? invalid_op+0x1e/0x30 [ 48.103990][ T179] ? ext4_writepages+0x8e6/0x3cc0 [ 48.109102][ T179] ? ext4_writepages+0x3c96/0x3cc0 [ 48.114040][ T179] ? ext4_writepages+0x3c96/0x3cc0 [ 48.119318][ T179] ? _raw_spin_unlock+0x49/0x60 [ 48.124563][ T179] ? netif_rx_internal+0xfd/0x450 [ 48.129576][ T179] ? dev_forward_skb+0x40/0x40 [ 48.134539][ T179] ? eth_type_trans+0x2e4/0x620 [ 48.139389][ T179] ? check_preemption_disabled+0x9f/0x320 [ 48.145549][ T179] ? ext4_readpage+0x2e0/0x2e0 [ 48.150405][ T179] ? netif_rx+0x2e/0x300 [ 48.154744][ T179] ? loopback_xmit+0x465/0x620 [ 48.159890][ T179] ? passthru_features_check+0x10/0x10 [ 48.165277][ T179] ? check_preemption_disabled+0x9f/0x320 [ 48.171151][ T179] ? check_preemption_disabled+0x9f/0x320 [ 48.176921][ T179] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 48.182401][ T179] ? ext4_readpage+0x2e0/0x2e0 [ 48.187171][ T179] do_writepages+0x12b/0x270 [ 48.191774][ T179] ? get_reg+0x220/0x220 [ 48.196030][ T179] ? __writepage+0x110/0x110 [ 48.200616][ T179] ? _raw_spin_lock+0xa4/0x1b0 [ 48.205312][ T179] ? _raw_spin_trylock_bh+0x190/0x190 [ 48.210692][ T179] ? find_next_and_bit+0x156/0x190 [ 48.215776][ T179] ? _raw_spin_lock+0xa4/0x1b0 [ 48.220540][ T179] __writeback_single_inode+0xd9/0xcc0 [ 48.225999][ T179] writeback_sb_inodes+0x9e0/0x1800 [ 48.231199][ T179] ? _raw_spin_lock+0xa4/0x1b0 [ 48.235802][ T179] ? queue_io+0x500/0x500 [ 48.240109][ T179] ? writeback_sb_inodes+0x1800/0x1800 [ 48.245421][ T179] ? queue_io+0x358/0x500 [ 48.249738][ T179] wb_writeback+0x403/0xd70 [ 48.254073][ T179] ? wb_io_lists_depopulated+0x170/0x170 [ 48.259624][ T179] ? set_worker_desc+0x158/0x1c0 [ 48.264400][ T179] ? check_preemption_disabled+0x9f/0x320 [ 48.270332][ T179] ? kthread_data+0x4e/0xc0 [ 48.274669][ T179] wb_workfn+0x3b6/0x1230 [ 48.278935][ T179] ? inode_wait_for_writeback+0x280/0x280 [ 48.284468][ T179] ? switch_mm_irqs_off+0x6b5/0xab0 [ 48.289506][ T179] ? _raw_spin_unlock_irq+0x4a/0x60 [ 48.294841][ T179] ? finish_task_switch+0x130/0x590 [ 48.299865][ T179] ? __schedule+0xb0d/0x1320 [ 48.304773][ T179] ? _raw_spin_lock_irqsave+0x210/0x210 [ 48.310338][ T179] ? read_word_at_a_time+0xe/0x20 [ 48.315665][ T179] ? strscpy+0x89/0x220 [ 48.319734][ T179] process_one_work+0x765/0xd20 [ 48.324421][ T179] worker_thread+0xaef/0x1470 [ 48.329124][ T179] kthread+0x2da/0x360 [ 48.333203][ T179] ? worker_clr_flags+0x170/0x170 [ 48.338400][ T179] ? kthread_blkcg+0xd0/0xd0 [ 48.343280][ T179] ret_from_fork+0x1f/0x30 [ 48.347831][ T179] Modules linked in: [ 48.355106][ T179] ---[ end trace a9e168404bf7ae1e ]--- [ 48.360699][ T179] RIP: 0010:ext4_writepages+0x3c96/0x3cc0 [ 48.367082][ T179] Code: b0 9b ff 31 ff 89 de e8 28 b0 9b ff 45 84 f6 75 2e e8 0e ae 9b ff 49 bf 00 00 00 00 00 fc ff df e9 1d f9 ff ff e8 fa ad 9b ff <0f> 0b e8 f3 ad 9b ff 0f 0b e8 ec ad 9b ff e8 27 c9 37 ff eb 99 e8 [ 48.387991][ T179] RSP: 0018:ffff8881e4e2f0e0 EFLAGS: 00010293 [ 48.394053][ T179] RAX: ffffffff81c88b06 RBX: 0000010000000000 RCX: ffff8881ec136e40 [ 48.403846][ T179] RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000 [ 48.412819][ T179] RBP: ffff8881e4e2f4d0 R08: ffffffff81c85756 R09: ffffed103d0dedd8 [ 48.421259][ T179] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e86f6f68 [ 48.429487][ T179] R13: 0000000000000001 R14: 0000010410000000 R15: dffffc0000000000 [ 48.437568][ T179] FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 48.446845][ T179] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.453429][ T179] CR2: 00007fff5507cff8 CR3: 00000001da9c0000 CR4: 00000000003406a0 [ 48.462959][ T179] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.472049][ T179] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.480525][ T179] Kernel panic - not syncing: Fatal exception [ 48.486934][ T179] Kernel Offset: disabled [ 48.492084][ T179] Rebooting in 86400 seconds..