[ 395.580059][ T339] device bridge_slave_1 left promiscuous mode [ 395.586328][ T339] bridge0: port 2(bridge_slave_1) entered disabled state [ 395.594358][ T339] device bridge_slave_0 left promiscuous mode [ 395.600768][ T339] bridge0: port 1(bridge_slave_0) entered disabled state [ 395.608808][ T339] device veth1_macvtap left promiscuous mode [ 395.614901][ T339] device veth0_vlan left promiscuous mode [ 396.620322][ T339] device bridge_slave_1 left promiscuous mode [ 396.626472][ T339] bridge0: port 2(bridge_slave_1) entered disabled state [ 396.634110][ T339] device bridge_slave_0 left promiscuous mode [ 396.640379][ T339] bridge0: port 1(bridge_slave_0) entered disabled state [ 396.648420][ T339] device bridge_slave_1 left promiscuous mode [ 396.655297][ T339] bridge0: port 2(bridge_slave_1) entered disabled state [ 396.662964][ T339] device bridge_slave_0 left promiscuous mode [ 396.669255][ T339] bridge0: port 1(bridge_slave_0) entered disabled state [ 396.677321][ T339] device bridge_slave_1 left promiscuous mode [ 396.683607][ T339] bridge0: port 2(bridge_slave_1) entered disabled state [ 396.691202][ T339] device bridge_slave_0 left promiscuous mode [ 396.697417][ T339] bridge0: port 1(bridge_slave_0) entered disabled state [ 396.705592][ T339] device bridge_slave_1 left promiscuous mode [ 396.711783][ T339] bridge0: port 2(bridge_slave_1) entered disabled state [ 396.719625][ T339] device bridge_slave_0 left promiscuous mode [ 396.725758][ T339] bridge0: port 1(bridge_slave_0) entered disabled state [ 396.735348][ T339] device veth1_macvtap left promiscuous mode [ 396.741415][ T339] device veth0_vlan left promiscuous mode [ 396.747791][ T339] device veth1_macvtap left promiscuous mode [ 396.753890][ T339] device veth0_vlan left promiscuous mode [ 396.760298][ T339] device veth1_macvtap left promiscuous mode [ 396.766371][ T339] device veth0_vlan left promiscuous mode [ 396.772759][ T339] device veth1_macvtap left promiscuous mode [ 396.778790][ T339] device veth0_vlan left promiscuous mode Warning: Permanently added '10.128.0.126' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 400.586493][T14361] loop0: detected capacity change from 0 to 512 [ 400.599301][T14363] loop2: detected capacity change from 0 to 512 [ 400.600380][T14364] loop3: detected capacity change from 0 to 512 [ 400.607610][T14362] loop4: detected capacity change from 0 to 512 [ 400.616065][T14356] loop1: detected capacity change from 0 to 512 [ 400.627445][T14356] EXT4-fs (loop1): encrypted files will use data=ordered instead of data journaling mode [ 400.639630][T14356] EXT4-fs (loop1): 1 truncate cleaned up [ 400.646315][T14363] EXT4-fs (loop2): encrypted files will use data=ordered instead of data journaling mode [ 400.651122][ T30] audit: type=1400 audit(1793284391.342:113): avc: denied { mounton } for pid=14360 comm="syz-executor278" path="/root/file2" dev="loop1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 400.657665][T14361] EXT4-fs (loop0): encrypted files will use data=ordered instead of data journaling mode [ 400.680847][T14364] EXT4-fs (loop3): encrypted files will use data=ordered instead of data journaling mode [ 400.699845][T14362] EXT4-fs (loop4): encrypted files will use data=ordered instead of data journaling mode [ 400.710046][T14370] EXT4-fs error (device loop1): ext4_validate_block_bitmap:429: comm syz-executor278: bg 0: block 3: invalid block bitmap [ 400.717763][T14363] EXT4-fs (loop2): 1 truncate cleaned up [ 400.732526][T14361] EXT4-fs (loop0): 1 truncate cleaned up [ 400.757588][T14364] EXT4-fs (loop3): 1 truncate cleaned up [ 400.764328][T14370] EXT4-fs (loop1): Remounting filesystem read-only [ 400.772128][T14370] EXT4-fs error (device loop1): __ext4_get_inode_loc:4365: comm syz-executor278: Invalid inode table block 5 in block_group 0 [ 400.788794][T14362] EXT4-fs (loop4): 1 truncate cleaned up [ 400.795674][T14370] EXT4-fs (loop1): Remounting filesystem read-only [ 400.802782][T14370] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5904: Corrupt filesystem [ 400.813199][T14370] EXT4-fs (loop1): Remounting filesystem read-only [ 400.819832][T14370] EXT4-fs error (device loop1): ext4_dirty_inode:6118: inode #18: comm syz-executor278: mark_inode_dirty error [ 400.832763][T14370] EXT4-fs (loop1): Remounting filesystem read-only [ 400.840158][T14370] EXT4-fs error (device loop1): __ext4_get_inode_loc:4365: comm syz-executor278: Invalid inode table block 5 in block_group 0 [ 400.853509][T14370] EXT4-fs (loop1): Remounting filesystem read-only [ 400.860290][T14370] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5904: Corrupt filesystem [ 400.870142][T14370] EXT4-fs (loop1): Remounting filesystem read-only [ 400.876732][T14370] EXT4-fs error (device loop1): ext4_evict_inode:285: inode #18: comm syz-executor278: mark_inode_dirty error [ 400.888652][T14370] EXT4-fs (loop1): Remounting filesystem read-only [ 400.895345][T14370] EXT4-fs warning (device loop1): ext4_evict_inode:288: couldn't mark inode dirty (err -117) [ 400.913254][ T30] audit: type=1400 audit(1793284391.612:114): avc: denied { read append open } for pid=14358 comm="syz-executor278" path="/root/file2/blkio.bfq.io_service_bytes" dev="loop3" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 400.940580][T14362] EXT4-fs error (device loop4): ext4_validate_block_bitmap:429: comm syz-executor278: bg 0: block 3: invalid block bitmap executing program executing program executing program [ 400.959481][T14362] EXT4-fs (loop4): Remounting filesystem read-only [ 400.971725][T14361] EXT4-fs (loop3): pa ffff88812f22d150: logic 0, phys. 193, len 32 [ 400.979809][T14361] EXT4-fs error (device loop3): ext4_mb_release_inode_pa:4904: group 0, free 4, pa_free 16 [ 401.012397][T14361] EXT4-fs (loop3): Remounting filesystem read-only [ 401.019181][T14361] ------------[ cut here ]------------ [ 401.024718][T14361] kernel BUG at fs/ext4/mballoc.c:4877! [ 401.030430][T14361] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 401.036548][T14361] CPU: 1 PID: 14361 Comm: syz-executor278 Not tainted syzkaller #0 [ 401.044473][T14361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 [ 401.054572][T14361] RIP: 0010:ext4_mb_release_inode_pa+0xa78/0xa80 [ 401.061131][T14361] Code: e2 07 80 c2 03 38 c2 0f 8c 2c fe ff ff 4c 89 f7 89 cb e8 fb 71 cb ff 89 d9 e9 1b fe ff ff e8 8f d7 8b ff 0f 0b e8 88 d7 8b ff <0f> 0b 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb 49 bf [ 401.080790][T14361] RSP: 0018:ffffc90000aa6b20 EFLAGS: 00010293 [ 401.086889][T14361] RAX: ffffffff81ddff78 RBX: 00000000000013ee RCX: ffff88811e0e1400 [ 401.094897][T14361] RDX: 0000000000000000 RSI: 0000000000000060 RDI: 0000000000000000 [ 401.102902][T14361] RBP: ffffc90000aa6c70 R08: 0000000000000003 R09: 0000000000000004 [ 401.110916][T14361] R10: dffffc0000000000 R11: fffff52000154d80 R12: 1ffff92000154d7c [ 401.119054][T14361] R13: dffffc0000000000 R14: 0000000000000060 R15: 0000000000000000 [ 401.127063][T14361] FS: 00007febe0d8e6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 401.136315][T14361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 401.142951][T14361] CR2: 00007febe0d6cfd0 CR3: 000000011b2e9000 CR4: 00000000003506a0 [ 401.151144][T14361] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 executing program [ 401.159733][T14361] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 401.167781][T14361] Call Trace: [ 401.171092][T14361] [ 401.174059][T14361] ? ext4_mb_unload_buddy+0x1b0/0x1b0 [ 401.179480][T14361] ext4_mb_discard_group_preallocations+0xbdb/0xe20 [ 401.186120][T14361] ? ext4_mb_new_inode_pa+0x1320/0x1320 [ 401.191724][T14361] ext4_mb_discard_preallocations_should_retry+0x156/0x600 [ 401.199140][T14361] ext4_mb_new_blocks+0x3019/0x4140 [ 401.204419][T14361] ? __getblk_gfp+0x42/0x7d0 [ 401.209183][T14361] ? mark_buffer_dirty_inode+0xfe/0x300 [ 401.214778][T14361] ? bh_uptodate_or_lock+0xf0/0x170 [ 401.220022][T14361] ? ext4_get_branch+0x661/0x7c0 [ 401.225040][T14361] ? ext4_mb_pa_callback+0xd0/0xd0 [ 401.230214][T14361] ext4_ind_map_blocks+0xdd4/0x2050 [ 401.235488][T14361] ? get_orlov_stats+0x2f0/0x2f0 [ 401.240473][T14361] ? __kasan_check_write+0x14/0x20 [ 401.245711][T14361] ? downgrade_write+0x440/0x440 [ 401.250838][T14361] ? __down_common+0x360/0x360 [ 401.255885][T14361] ? ext4_es_lookup_extent+0x563/0x900 executing program [ 401.261503][T14361] ext4_map_blocks+0x923/0x1a50 [ 401.266412][T14361] ? ext4_issue_zeroout+0x250/0x250 [ 401.271656][T14361] _ext4_get_block+0x1ea/0x540 [ 401.276469][T14361] ? ext4_get_block+0x50/0x50 [ 401.281200][T14361] ? slab_post_alloc_hook+0x6d/0x2b0 [ 401.286573][T14361] ext4_get_block+0x39/0x50 [ 401.291144][T14361] ext4_block_write_begin+0x525/0x10a0 [ 401.296687][T14361] ? __kasan_check_write+0x14/0x20 [ 401.301857][T14361] ? ext4_es_is_delayed+0x40/0x40 [ 401.306933][T14361] ? ext4_print_free_blocks+0x390/0x390 [ 401.312528][T14361] ? ext4_write_begin+0x486/0x1360 [ 401.317785][T14361] ? __ext4_journal_start_sb+0x154/0x2b0 [ 401.323553][T14361] ext4_write_begin+0x683/0x1360 [ 401.328556][T14361] ? ext4_mark_iloc_dirty+0x30bd/0x4010 [ 401.334173][T14361] ? ext4_readahead+0x110/0x110 [ 401.339205][T14361] ? __ext4_mark_inode_dirty+0x44a/0x620 [ 401.344982][T14361] ? __ext4_journal_stop+0x36/0x1a0 [ 401.350248][T14361] ? fault_in_readable+0x105/0x160 [ 401.355547][T14361] generic_perform_write+0x2b7/0x690 [ 401.361074][T14361] ? grab_cache_page_write_begin+0xb0/0xb0 [ 401.366945][T14361] ? do_futex+0xdd3/0x2800 [ 401.371530][T14361] ? generic_write_checks+0x3df/0x480 [ 401.377046][T14361] ext4_buffered_write_iter+0x4b3/0x640 [ 401.382637][T14361] ext4_file_write_iter+0x427/0x1530 [ 401.387976][T14361] ? futex_exit_release+0x1e0/0x1e0 [ 401.393230][T14361] ? avc_policy_seqno+0x1b/0x70 [ 401.398256][T14361] ? ext4_file_read_iter+0x500/0x500 [ 401.403597][T14361] ? memset+0x35/0x40 [ 401.407625][T14361] ? iov_iter_init+0xbc/0x180 [ 401.412388][T14361] vfs_write+0x831/0xfd0 [ 401.416684][T14361] ? file_end_write+0x1b0/0x1b0 [ 401.421577][T14361] ? wait_for_completion_killable_timeout+0x10/0x10 [ 401.428256][T14361] ? __fget_files+0x2e1/0x340 [ 401.433110][T14361] ? __fdget_pos+0x2d2/0x380 [ 401.437747][T14361] ? ksys_write+0x70/0x260 [ 401.442203][T14361] ksys_write+0x14a/0x260 [ 401.446589][T14361] ? __ia32_sys_read+0x90/0x90 [ 401.451494][T14361] ? __kasan_check_write+0x14/0x20 [ 401.456655][T14361] ? switch_fpu_return+0x15d/0x2c0 [ 401.461962][T14361] __x64_sys_write+0x7b/0x90 [ 401.466581][T14361] x64_sys_call+0x8ef/0x9a0 [ 401.471196][T14361] do_syscall_64+0x4c/0xa0 [ 401.475713][T14361] ? clear_bhb_loop+0x50/0xa0 [ 401.480453][T14361] ? clear_bhb_loop+0x50/0xa0 [ 401.485142][T14361] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 401.491061][T14361] RIP: 0033:0x7febe0dbb239 [ 401.495490][T14361] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 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 d0 ff ff ff f7 d8 64 89 01 48 [ 401.515212][T14361] RSP: 002b:00007febe0d8e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 401.523644][T14361] RAX: ffffffffffffffda RBX: 00007febe0e61e28 RCX: 00007febe0dbb239 [ 401.531655][T14361] RDX: 000000000208e24b RSI: 0000200000000040 RDI: 0000000000000005 [ 401.539639][T14361] RBP: 00007febe0e61e20 R08: 00007febe0d8ecdc R09: 0000000000000000 [ 401.547632][T14361] R10: 0000000000000000 R11: 0000000000000246 R12: 00007febe0e61e2c [ 401.555713][T14361] R13: 0000000000000006 R14: 00007fffec606a90 R15: 00007fffec606b78 executing program executing program [ 401.563703][T14361] [ 401.566770][T14361] Modules linked in: [ 401.570835][T14361] ---[ end trace 5536ed89135e1c25 ]--- [ 401.576328][T14361] RIP: 0010:ext4_mb_release_inode_pa+0xa78/0xa80 [ 401.582894][T14361] Code: e2 07 80 c2 03 38 c2 0f 8c 2c fe ff ff 4c 89 f7 89 cb e8 fb 71 cb ff 89 d9 e9 1b fe ff ff e8 8f d7 8b ff 0f 0b e8 88 d7 8b ff <0f> 0b 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb 49 bf [ 401.602641][T14361] RSP: 0018:ffffc90000aa6b20 EFLAGS: 00010293 [ 401.608749][T14361] RAX: ffffffff81ddff78 RBX: 00000000000013ee RCX: ffff88811e0e1400 [ 401.616855][T14361] RDX: 0000000000000000 RSI: 0000000000000060 RDI: 0000000000000000 [ 401.625080][T14361] RBP: ffffc90000aa6c70 R08: 0000000000000003 R09: 0000000000000004 [ 401.633169][T14361] R10: dffffc0000000000 R11: fffff52000154d80 R12: 1ffff92000154d7c [ 401.641243][T14361] R13: dffffc0000000000 R14: 0000000000000060 R15: 0000000000000000 [ 401.649275][T14361] FS: 00007febe0d8e6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 401.658271][T14361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 401.664917][T14361] CR2: 00007febe0d6cfd0 CR3: 000000011b2e9000 CR4: 00000000003506a0 [ 401.672959][T14361] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 401.680996][T14361] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 401.689009][T14361] Kernel panic - not syncing: Fatal exception [ 401.695333][T14361] Kernel Offset: disabled [ 401.699697][T14361] Rebooting in 86400 seconds..