Warning: Permanently added '10.128.1.23' (ED25519) to the list of known hosts. executing program [ 23.316708][ T23] audit: type=1400 audit(1746234390.110:81): avc: denied { execmem } for pid=335 comm="syz-executor285" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.342755][ T23] audit: type=1400 audit(1746234390.110:82): avc: denied { read write } for pid=335 comm="syz-executor285" name="loop0" dev="devtmpfs" ino=142 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.367343][ T23] audit: type=1400 audit(1746234390.110:83): avc: denied { open } for pid=335 comm="syz-executor285" path="/dev/loop0" dev="devtmpfs" ino=142 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.391587][ T23] audit: type=1400 audit(1746234390.110:84): avc: denied { ioctl } for pid=335 comm="syz-executor285" path="/dev/loop0" dev="devtmpfs" ino=142 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.417317][ T23] audit: type=1400 audit(1746234390.130:85): avc: denied { read write } for pid=337 comm="syz-executor285" name="vhost-vsock" dev="devtmpfs" ino=10670 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 23.441540][ T23] audit: type=1400 audit(1746234390.130:86): avc: denied { open } for pid=337 comm="syz-executor285" path="/dev/vhost-vsock" dev="devtmpfs" ino=10670 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 23.466242][ T23] audit: type=1400 audit(1746234390.130:87): avc: denied { ioctl } for pid=337 comm="syz-executor285" path="/dev/vhost-vsock" dev="devtmpfs" ino=10670 ioctlcmd=0xaf01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 23.491754][ T23] audit: type=1400 audit(1746234390.240:88): avc: denied { mounton } for pid=337 comm="syz-executor285" path="/root/file0" dev="sda1" ino=1926 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 23.524510][ T339] EXT4-fs (loop0): mounted filesystem without journal. Opts: dioread_lock,auto_da_alloc,nojournal_checksum,grpquota,auto_da_alloc,noquota,data_err=abort,grpid,grpjquota=,nouid32,grpid,,errors=continue [ 23.545278][ T23] audit: type=1400 audit(1746234390.340:89): avc: denied { mount } for pid=337 comm="syz-executor285" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 executing program executing program [ 23.574596][ T23] audit: type=1400 audit(1746234390.370:90): avc: denied { write } for pid=337 comm="syz-executor285" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 23.597857][ T340] EXT4-fs error (device loop0): ext4_validate_block_bitmap:418: comm vhost-339: bg 0: block 234: padding at end of block bitmap is not set executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 53.772969][ T103] ------------[ cut here ]------------ [ 53.778573][ T103] kernel BUG at fs/ext4/inode.c:2844! [ 53.784574][ T103] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 53.790801][ T103] CPU: 0 PID: 103 Comm: kworker/u4:2 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0 [ 53.800963][ T103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 53.811159][ T103] Workqueue: writeback wb_workfn (flush-7:0) [ 53.817176][ T103] RIP: 0010:ext4_writepages+0x2f83/0x2fb0 [ 53.822927][ T103] Code: 0f 94 c6 bf 02 00 00 00 e8 6a 29 a1 ff 84 db 75 2e e8 11 27 a1 ff 49 bc 00 00 00 00 00 fc ff df e9 47 f9 ff ff e8 fd 26 a1 ff <0f> 0b e8 f6 26 a1 ff 0f 0b e8 ef 26 a1 ff e8 ba ef 41 ff eb 9b e8 [ 53.842708][ T103] RSP: 0018:ffff8881ee9f71a0 EFLAGS: 00010293 [ 53.848774][ T103] RAX: ffffffff81be57e3 RBX: 0000010410000000 RCX: ffff8881f0debf00 [ 53.856812][ T103] RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000 [ 53.864794][ T103] RBP: ffff8881ee9f74f0 R08: dffffc0000000000 R09: ffffed103b94bd33 [ 53.872861][ T103] R10: ffffed103b94bd33 R11: 1ffff1103b94bd32 R12: dffffc0000000000 [ 53.881069][ T103] R13: ffff8881ee9f7810 R14: 0000010000000000 R15: ffff8881dca5ea68 [ 53.889038][ T103] FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 53.898045][ T103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.904617][ T103] CR2: 0000000000000002 CR3: 00000001ed5f3000 CR4: 00000000003406b0 [ 53.912672][ T103] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.920665][ T103] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.928706][ T103] Call Trace: [ 53.932006][ T103] ? write_cache_pages+0xbee/0xd20 [ 53.937159][ T103] ? generic_writepages+0x160/0x160 [ 53.942603][ T103] ? tag_pages_for_writeback+0x3b0/0x3b0 [ 53.948248][ T103] ? ext4_readpage+0x310/0x310 [ 53.953036][ T103] ? check_preemption_disabled+0x9b/0x300 [ 53.958770][ T103] ? ext4_readpage+0x310/0x310 [ 53.963533][ T103] do_writepages+0x127/0x270 [ 53.968405][ T103] ? __writepage+0x120/0x120 [ 53.973000][ T103] ? __kasan_check_write+0x14/0x20 [ 53.978121][ T103] ? _raw_spin_lock+0x8e/0xe0 [ 53.982793][ T103] ? __kasan_check_write+0x14/0x20 [ 53.988068][ T103] __writeback_single_inode+0xd9/0xc30 [ 53.993631][ T103] ? wbc_attach_and_unlock_inode+0x3b3/0x5b0 [ 54.000160][ T103] writeback_sb_inodes+0x94f/0x1700 [ 54.005358][ T103] ? debug_smp_processor_id+0x20/0x20 [ 54.010749][ T103] ? queue_io+0x4e0/0x4e0 [ 54.015081][ T103] ? __kasan_check_write+0x14/0x20 [ 54.020219][ T103] ? __kasan_check_read+0x11/0x20 [ 54.025382][ T103] wb_writeback+0x490/0xc20 [ 54.029891][ T103] ? wb_io_lists_depopulated+0x170/0x170 [ 54.035531][ T103] ? debug_smp_processor_id+0x20/0x20 [ 54.040902][ T103] ? cpumask_next+0x25/0x30 [ 54.045393][ T103] wb_workfn+0xab0/0xf90 [ 54.049630][ T103] ? inode_wait_for_writeback+0x200/0x200 [ 54.055482][ T103] ? __kasan_check_read+0x11/0x20 [ 54.060632][ T103] ? switch_mm_irqs_off+0x37d/0x9b0 [ 54.065840][ T103] ? __schedule+0xa57/0x12a0 [ 54.070577][ T103] ? __kasan_check_read+0x11/0x20 [ 54.075591][ T103] ? read_word_at_a_time+0x12/0x20 [ 54.080719][ T103] ? strscpy+0x9b/0x290 [ 54.084869][ T103] process_one_work+0x73b/0xcc0 [ 54.089728][ T103] worker_thread+0xa5c/0x13b0 [ 54.094416][ T103] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 54.099882][ T103] ? __kasan_check_read+0x11/0x20 [ 54.104930][ T103] kthread+0x31e/0x3a0 [ 54.108991][ T103] ? worker_clr_flags+0x190/0x190 [ 54.114007][ T103] ? kthread_blkcg+0xd0/0xd0 [ 54.118587][ T103] ret_from_fork+0x1f/0x30 executing program [ 54.123092][ T103] Modules linked in: [ 54.128289][ T103] ---[ end trace 51533331f1e31e04 ]--- [ 54.135694][ T103] RIP: 0010:ext4_writepages+0x2f83/0x2fb0 [ 54.152943][ T103] Code: 0f 94 c6 bf 02 00 00 00 e8 6a 29 a1 ff 84 db 75 2e e8 11 27 a1 ff 49 bc 00 00 00 00 00 fc ff df e9 47 f9 ff ff e8 fd 26 a1 ff <0f> 0b e8 f6 26 a1 ff 0f 0b e8 ef 26 a1 ff e8 ba ef 41 ff eb 9b e8 executing program [ 54.173011][ T103] RSP: 0018:ffff8881ee9f71a0 EFLAGS: 00010293 [ 54.179467][ T103] RAX: ffffffff81be57e3 RBX: 0000010410000000 RCX: ffff8881f0debf00 [ 54.190291][ T103] RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000 [ 54.199045][ T103] RBP: ffff8881ee9f74f0 R08: dffffc0000000000 R09: ffffed103b94bd33 [ 54.207353][ T103] R10: ffffed103b94bd33 R11: 1ffff1103b94bd32 R12: dffffc0000000000 [ 54.215874][ T103] R13: ffff8881ee9f7810 R14: 0000010000000000 R15: ffff8881dca5ea68 executing program [ 54.224344][ T103] FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 54.233695][ T103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.240403][ T103] CR2: 00007fff93809828 CR3: 00000001ed5f3000 CR4: 00000000003406b0 [ 54.248846][ T103] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.257629][ T103] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.266000][ T103] Kernel panic - not syncing: Fatal exception [ 54.272438][ T103] Kernel Offset: disabled [ 54.276796][ T103] Rebooting in 86400 seconds..