Hello, syzbot found the following issue on:
HEAD commit: dee65f79364c Merge tag 'lsm-pr-20260202' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1639fbfa580000 kernel config: https://syzkaller.appspot.com/x/.config?x=151a39927f1e10b4 dashboard link: https://syzkaller.appspot.com/bug?extid=fc026e87558558f75c00 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=114fb322580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1245fc5a580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/d5a48068ae28/disk-dee65f79.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2c254f049b04/vmlinux-dee65f79.xz kernel image: https://storage.googleapis.com/syzbot-assets/12b280dac533/bzImage-dee65f79.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/bce313ec1951/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=164fb322580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: [email protected] F2FS-fs (loop0): Wrong SSA boundary, start(3584) end(4096) blocks(3072) F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop0): Image doesn't support compression F2FS-fs (loop0): invalid crc value ------------[ cut here ]------------ kernel BUG at fs/inode.c:782! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6061 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 RIP: 0010:clear_inode+0x19a/0x1c0 fs/inode.c:782 Code: 4c 89 f7 e8 08 2f eb ff e9 5a ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 7c a2 4c 89 f7 e8 de 2f eb ff eb 98 e8 47 c7 86 ff 90 <0f> 0b e8 3f c7 86 ff 90 0f 0b e8 37 c7 86 ff 90 0f 0b e8 2f c7 86 RSP: 0018:ffffc90003e17850 EFLAGS: 00010293 RAX: ffffffff823c6d29 RBX: ffff888057a99310 RCX: ffff88802b1edac0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003e179c0 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1e8fbef R12: dffffc0000000000 R13: 1ffff920007c2f1c R14: ffff888057a99568 R15: 0000000000000001 FS: 000055557a53e500(0000) GS:ffff8881266c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff6ffc5bbc CR3: 0000000034a72000 CR4: 00000000003526f0 Call Trace: <TASK> evict+0x61e/0xb10 fs/inode.c:837 f2fs_fill_super+0x54e4/0x6e30 fs/f2fs/super.c:5147 get_tree_bdev_flags+0x431/0x4f0 fs/super.c:1691 vfs_get_tree+0x92/0x2a0 fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x329/0xa50 fs/namespace.c:3712 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4201 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff95c0cc14a Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd4f028d88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffd4f028e10 RCX: 00007ff95c0cc14a RDX: 0000200000000140 RSI: 00002000000001c0 RDI: 00007ffd4f028dd0 RBP: 0000200000000140 R08: 00007ffd4f028e10 R09: 0000000000000008 R10: 0000000000000008 R11: 0000000000000246 R12: 00002000000001c0 R13: 00007ffd4f028dd0 R14: 0000000000005548 R15: 0000200000000200 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:clear_inode+0x19a/0x1c0 fs/inode.c:782 Code: 4c 89 f7 e8 08 2f eb ff e9 5a ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 7c a2 4c 89 f7 e8 de 2f eb ff eb 98 e8 47 c7 86 ff 90 <0f> 0b e8 3f c7 86 ff 90 0f 0b e8 37 c7 86 ff 90 0f 0b e8 2f c7 86 RSP: 0018:ffffc90003e17850 EFLAGS: 00010293 RAX: ffffffff823c6d29 RBX: ffff888057a99310 RCX: ffff88802b1edac0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003e179c0 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1e8fbef R12: dffffc0000000000 R13: 1ffff920007c2f1c R14: ffff888057a99568 R15: 0000000000000001 FS: 000055557a53e500(0000) GS:ffff8881266c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff6ffc5bbc CR3: 0000000034a72000 CR4: 00000000003526f0 --- 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 [email protected]. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, 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 report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
