Hello, syzbot found the following issue on: HEAD commit: ae545c3283dc Merge tag 'gpio-fixes-for-v6.5-rc6' of git://.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=13e5d553a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=171b698bc2e613cf dashboard link: https://syzkaller.appspot.com/bug?extid=27eece6916b914a49ce7 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13433207a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=109cd837a80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/3b9bad020898/disk-ae545c32.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4073566d0a4b/vmlinux-ae545c32.xz kernel image: https://storage.googleapis.com/syzbot-assets/b163e2a2c47c/bzImage-ae545c32.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/004395fabe81/mount_0.gz Bisection is inconclusive: the issue happens on the oldest tested release. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12890d53a80000 final oops: https://syzkaller.appspot.com/x/report.txt?x=11890d53a80000 console output: https://syzkaller.appspot.com/x/log.txt?x=16890d53a80000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+27eece6916b914a49ce7@xxxxxxxxxxxxxxxxxxxxxxxxx loop0: detected capacity change from 0 to 512 ext2: Unknown parameter '����' EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended EXT4-fs warning (device loop0): ext4_update_dynamic_rev:1084: updating to rev 1 because of new feature flag, running e2fsck is recommended EXT4-fs error (device loop0): ext4_validate_block_bitmap:430: comm syz-executor211: bg 0: block 46: invalid block bitmap Kernel panic - not syncing: EXT4-fs (device loop0): panic forced after error CPU: 1 PID: 5061 Comm: syz-executor211 Not tainted 6.5.0-rc5-syzkaller-00353-gae545c3283dc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 panic+0x30f/0x770 kernel/panic.c:340 ext4_handle_error+0x84e/0x8b0 fs/ext4/super.c:685 __ext4_error+0x277/0x3b0 fs/ext4/super.c:776 ext4_validate_block_bitmap+0xdf5/0x1200 fs/ext4/balloc.c:429 ext4_read_block_bitmap+0x40/0x80 fs/ext4/balloc.c:595 ext4_mb_clear_bb fs/ext4/mballoc.c:6503 [inline] ext4_free_blocks+0xfd3/0x2e20 fs/ext4/mballoc.c:6748 ext4_remove_blocks fs/ext4/extents.c:2545 [inline] ext4_ext_rm_leaf fs/ext4/extents.c:2710 [inline] ext4_ext_remove_space+0x216e/0x4d90 fs/ext4/extents.c:2958 ext4_ext_truncate+0x164/0x1f0 fs/ext4/extents.c:4408 ext4_truncate+0xa0a/0x1150 fs/ext4/inode.c:4127 ext4_process_orphan+0x1aa/0x2d0 fs/ext4/orphan.c:339 ext4_orphan_cleanup+0xb71/0x1400 fs/ext4/orphan.c:474 __ext4_fill_super fs/ext4/super.c:5577 [inline] ext4_fill_super+0x63ef/0x6ce0 fs/ext4/super.c:5696 get_tree_bdev+0x468/0x6c0 fs/super.c:1318 vfs_get_tree+0x8c/0x270 fs/super.c:1519 do_new_mount+0x28f/0xae0 fs/namespace.c:3335 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f86c9eb1a99 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 RSP: 002b:00007ffc2eecbce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f86c9eb1a99 RDX: 00000000200001c0 RSI: 00000000200006c0 RDI: 0000000020000640 RBP: 000000000000ec37 R08: 0000000000000000 R09: 00005555562044c0 R10: 000000003f000000 R11: 0000000000000246 R12: 00007ffc2eecbd10 R13: 00007ffc2eecbcfc R14: 431bde82d7b634db R15: 00007f86c9efa03b </TASK> Kernel Offset: disabled Rebooting in 86400 seconds.. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
