DUID 00:04:b0:cd:33:f9:4f:8a:55:45:4d:7b:3b:ee:3a:71:f0:8b forked to background, child pid 4646 [ 30.102276][ T4647] 8021q: adding VLAN 0 to HW filter on device bond0 [ 30.114687][ T4647] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 76.377684][ T22] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.125' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 517.411990][ T5100] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5100 'syz-executor213' [ 517.448552][ T5100] loop0: detected capacity change from 0 to 2048 [ 517.464498][ T5105] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 517.494852][ T5114] loop3: detected capacity change from 0 to 2048 [ 517.508861][ T5115] loop1: detected capacity change from 0 to 2048 [ 517.516606][ T5110] loop2: detected capacity change from 0 to 2048 [ 517.524841][ T5112] loop4: detected capacity change from 0 to 2048 [ 517.534890][ T5113] loop5: detected capacity change from 0 to 2048 [ 517.561447][ T5115] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. [ 517.561586][ T5100] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. [ 517.573982][ T5114] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. [ 517.585171][ T5100] ext4 filesystem being mounted at /root/bus supports timestamps until 2038 (0x7fffffff) [ 517.607707][ T5115] ext4 filesystem being mounted at /root/bus supports timestamps until 2038 (0x7fffffff) [ 517.614324][ T5110] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. [ 517.619746][ T5114] ext4 filesystem being mounted at /root/bus supports timestamps until 2038 (0x7fffffff) [ 517.632148][ T5113] EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. [ 517.653868][ T5112] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. [ 517.666698][ T5112] ext4 filesystem being mounted at /root/bus supports timestamps until 2038 (0x7fffffff) [ 517.668740][ T27] audit: type=1800 audit(1680339940.455:2): pid=5100 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor213" name="bus" dev="loop0" ino=18 res=0 errno=0 [ 517.677447][ T5110] ext4 filesystem being mounted at /root/bus supports timestamps until 2038 (0x7fffffff) [ 517.696919][ T5113] ext4 filesystem being mounted at /root/bus supports timestamps until 2038 (0x7fffffff) executing program executing program [ 517.778815][ T27] audit: type=1800 audit(1680339940.495:3): pid=5114 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor213" name="bus" dev="loop3" ino=18 res=0 errno=0 [ 517.813546][ T5112] EXT4-fs error (device loop4): __ext4_get_inode_loc:4560: comm syz-executor213: Invalid inode table block 0 in block_group 0 [ 517.857414][ T27] audit: type=1800 audit(1680339940.505:4): pid=5115 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor213" name="bus" dev="loop1" ino=18 res=0 errno=0 [ 517.886228][ T5112] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5909: Corrupt filesystem executing program [ 517.925591][ T5112] EXT4-fs error (device loop4): __ext4_ext_dirty:202: inode #19: comm syz-executor213: mark_inode_dirty error executing program executing program [ 517.968343][ T27] audit: type=1800 audit(1680339940.505:5): pid=5113 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor213" name="bus" dev="loop5" ino=18 res=0 errno=0 [ 517.998570][ T5112] ------------[ cut here ]------------ [ 518.004433][ T5112] kernel BUG at fs/ext4/ext4.h:3332! [ 518.038973][ T5112] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 518.045088][ T5112] CPU: 1 PID: 5112 Comm: syz-executor213 Not tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0 [ 518.055516][ T5112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 518.065586][ T5112] RIP: 0010:ext4_get_group_info+0x399/0x3a0 [ 518.071573][ T5112] Code: 4f ff 8b 74 24 04 48 c7 c7 a0 ab 0b 8d 4c 89 f2 e8 0c f9 2d 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 e7 3f 4f ff <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00 [ 518.091201][ T5112] RSP: 0018:ffffc90003e7f3b0 EFLAGS: 00010293 [ 518.097287][ T5112] RAX: ffffffff823b1299 RBX: 00000000ffffe6f1 RCX: ffff8880272e3a80 [ 518.105276][ T5112] RDX: 0000000000000000 RSI: 00000000ffffe6f1 RDI: 0000000000000001 [ 518.113282][ T5112] RBP: 0000000000000001 R08: ffffffff823b0f69 R09: ffffed100e89cd81 [ 518.121273][ T5112] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110052b0ccf [ 518.129255][ T5112] R13: dffffc0000000000 R14: ffff888029584000 R15: ffff888029586678 [ 518.137225][ T5112] FS: 00007f6693544700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 518.146147][ T5112] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 518.152725][ T5112] CR2: 000000002011b000 CR3: 00000000220e7000 CR4: 00000000003506e0 [ 518.160692][ T5112] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 518.168667][ T5112] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 518.176649][ T5112] Call Trace: [ 518.179943][ T5112] [ 518.182870][ T5112] ext4_mb_load_buddy_gfp+0xc3/0x820 [ 518.188174][ T5112] ? ext4_get_group_number+0x166/0x240 [ 518.193707][ T5112] ext4_discard_preallocations+0x84d/0x10e0 [ 518.199600][ T5112] ? mb_clear_bits+0x110/0x110 [ 518.204357][ T5112] ? __down_write_common+0x161/0x200 [ 518.209650][ T5112] ? ext4_journal_check_start+0x179/0x240 [ 518.215368][ T5112] ? __ext4_journal_start_sb+0x26b/0x5a0 [ 518.221001][ T5112] ext4_truncate+0x98b/0x1150 [ 518.225674][ T5112] ? __ext4_mark_inode_dirty+0x870/0x870 [ 518.231299][ T5112] ? ext4_journal_check_start+0x179/0x240 [ 518.237014][ T5112] ext4_write_begin+0xaa6/0xee0 [ 518.241866][ T5112] ? ext4_readahead+0x110/0x110 [ 518.246730][ T5112] ? fault_in_iov_iter_readable+0x49/0x280 [ 518.252580][ T5112] ? fault_in_readable+0x15a/0x350 [ 518.257727][ T5112] ext4_da_write_begin+0x42c/0x960 [ 518.262836][ T5112] ? ext4_dirty_folio+0x310/0x310 [ 518.267854][ T5112] ? fault_in_iov_iter_readable+0xdf/0x280 [ 518.273653][ T5112] generic_perform_write+0x300/0x5e0 [ 518.278978][ T5112] ? generic_file_direct_write+0x460/0x460 [ 518.284779][ T5112] ? clear_nonspinnable+0x60/0x60 [ 518.289819][ T5112] ? __lock_acquire+0x125b/0x1f80 [ 518.294872][ T5112] ? ext4_write_checks+0x255/0x2c0 [ 518.299974][ T5112] ext4_buffered_write_iter+0x122/0x3a0 [ 518.305515][ T5112] ext4_file_write_iter+0x1d6/0x1930 [ 518.310791][ T5112] ? read_lock_is_recursive+0x20/0x20 [ 518.316185][ T5112] ? ext4_file_read_iter+0x670/0x670 [ 518.321462][ T5112] ? rcu_is_watching+0x15/0xb0 [ 518.326264][ T5112] ? trace_contention_end+0x3c/0xf0 [ 518.331472][ T5112] vfs_write+0x7b2/0xbb0 [ 518.335759][ T5112] ? file_end_write+0x250/0x250 [ 518.340608][ T5112] ? mutex_lock_nested+0x1b/0x20 [ 518.345599][ T5112] ? __fdget_pos+0x254/0x2f0 [ 518.350195][ T5112] ? ksys_write+0x7b/0x2c0 [ 518.354605][ T5112] ksys_write+0x1a0/0x2c0 [ 518.358929][ T5112] ? print_irqtrace_events+0x220/0x220 [ 518.364395][ T5112] ? __ia32_sys_read+0x90/0x90 [ 518.369154][ T5112] ? syscall_enter_from_user_mode+0x32/0x230 [ 518.375186][ T5112] ? lockdep_hardirqs_on+0x98/0x140 [ 518.380374][ T5112] ? syscall_enter_from_user_mode+0x32/0x230 [ 518.386345][ T5112] do_syscall_64+0x41/0xc0 [ 518.390764][ T5112] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 518.396700][ T5112] RIP: 0033:0x7f66935a0429 [ 518.401107][ T5112] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 518.420713][ T5112] RSP: 002b:00007f6693544208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 518.429120][ T5112] RAX: ffffffffffffffda RBX: 00007f669361d788 RCX: 00007f66935a0429 [ 518.437082][ T5112] RDX: 000000000208e24b RSI: 0000000020000000 RDI: 0000000000000006 [ 518.445043][ T5112] RBP: 00007f669361d780 R08: 0000000000000000 R09: 0000000000000000 [ 518.453019][ T5112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f669361d78c [ 518.460980][ T5112] R13: 00007ffe59f2712f R14: 00007f6693544300 R15: 0000000000022000 [ 518.468950][ T5112] [ 518.471956][ T5112] Modules linked in: [ 518.507903][ T27] audit: type=1800 audit(1680339940.515:6): pid=5112 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor213" name="bus" dev="loop4" ino=18 res=0 errno=0 [ 518.537167][ T5112] ---[ end trace 0000000000000000 ]--- [ 518.543178][ T5112] RIP: 0010:ext4_get_group_info+0x399/0x3a0 [ 518.549789][ T5112] Code: 4f ff 8b 74 24 04 48 c7 c7 a0 ab 0b 8d 4c 89 f2 e8 0c f9 2d 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 e7 3f 4f ff <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00 [ 518.568483][ T27] audit: type=1800 audit(1680339940.585:7): pid=5110 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor213" name="bus" dev="loop2" ino=18 res=0 errno=0 [ 518.570291][ T5112] RSP: 0018:ffffc90003e7f3b0 EFLAGS: 00010293 [ 518.595636][ T5112] RAX: ffffffff823b1299 RBX: 00000000ffffe6f1 RCX: ffff8880272e3a80 executing program executing program executing program executing program executing program [ 518.606413][ T5112] RDX: 0000000000000000 RSI: 00000000ffffe6f1 RDI: 0000000000000001 [ 518.641029][ T5112] RBP: 0000000000000001 R08: ffffffff823b0f69 R09: ffffed100e89cd81 [ 518.677087][ T5112] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110052b0ccf [ 518.711597][ T5112] R13: dffffc0000000000 R14: ffff888029584000 R15: ffff888029586678 [ 518.729793][ T5112] FS: 00007f6693544700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 518.749959][ T5112] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 518.763420][ T5112] CR2: 00007f668b223000 CR3: 00000000220e7000 CR4: 00000000003506f0 [ 518.776930][ T5112] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 518.801476][ T5112] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 518.810393][ T5112] Kernel panic - not syncing: Fatal exception [ 518.816626][ T5112] Kernel Offset: disabled [ 518.820948][ T5112] Rebooting in 86400 seconds..