Hello, syzbot found the following issue on: HEAD commit: a689b938df39 Merge tag 'block-2023-01-06' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14e229c2480000 kernel config: https://syzkaller.appspot.com/x/.config?x=5ddca4921a53cff2 dashboard link: https://syzkaller.appspot.com/bug?extid=67d4d8261283b46b21ac compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15adc3fc480000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=150b3bcc480000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/a368fc04c846/disk-a689b938.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b6771146e261/vmlinux-a689b938.xz kernel image: https://storage.googleapis.com/syzbot-assets/ac22fc91deb9/bzImage-a689b938.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/15583b49f0c4/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+67d4d8261283b46b21ac@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff88810f4f5600 (size 32): comm "syz-executor300", pid 5077, jiffies 4294958926 (age 8.040s) hex dump (first 32 bytes): 73 79 7a 00 00 00 00 00 00 00 00 00 00 00 00 00 syz............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff814f9c67>] __do_kmalloc_node mm/slab_common.c:967 [inline] [<ffffffff814f9c67>] __kmalloc_node_track_caller+0x47/0x120 mm/slab_common.c:988 [<ffffffff814e9feb>] kstrdup+0x3b/0x70 mm/util.c:61 [<ffffffff8177b635>] reiserfs_parse_options+0xad5/0x1090 fs/reiserfs/super.c:1279 [<ffffffff8177f73d>] reiserfs_fill_super+0x17d/0x15d0 fs/reiserfs/super.c:1933 [<ffffffff8160f503>] mount_bdev+0x223/0x260 fs/super.c:1359 [<ffffffff81673a1b>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:610 [<ffffffff8160d088>] vfs_get_tree+0x28/0x100 fs/super.c:1489 [<ffffffff81650f27>] do_new_mount fs/namespace.c:3145 [inline] [<ffffffff81650f27>] path_mount+0xc37/0x10d0 fs/namespace.c:3475 [<ffffffff81651b5e>] do_mount fs/namespace.c:3488 [inline] [<ffffffff81651b5e>] __do_sys_mount fs/namespace.c:3697 [inline] [<ffffffff81651b5e>] __se_sys_mount fs/namespace.c:3674 [inline] [<ffffffff81651b5e>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3674 [<ffffffff848ef725>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff848ef725>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
