Hello, syzbot found the following issue on:
HEAD commit: 8653b778 Merge tag 'clk-for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=153fc4db500000 kernel config: https://syzkaller.appspot.com/x/.config?x=faf2996955887e91 dashboard link: https://syzkaller.appspot.com/bug?extid=77779c9b52ab78154b08 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11c44960d00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13bc8c0b500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+77779c9b52ab78154...@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff888110974f00 (size 64): comm "syz-executor849", pid 8516, jiffies 4294942501 (age 13.960s) hex dump (first 32 bytes): 00 30 ee 0d 81 88 ff ff 00 00 00 00 00 00 00 00 .0.............. 00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00 ............H... backtrace: [<0000000018aa1939>] kmalloc include/linux/slab.h:552 [inline] [<0000000018aa1939>] v2_read_file_info+0x1ae/0x430 fs/quota/quota_v2.c:122 [<000000001061252b>] dquot_load_quota_sb+0x351/0x650 fs/quota/dquot.c:2387 [<000000006c1f70f9>] dquot_load_quota_inode fs/quota/dquot.c:2423 [inline] [<000000006c1f70f9>] dquot_load_quota_inode+0xda/0x160 fs/quota/dquot.c:2415 [<00000000abace495>] ext4_quota_enable fs/ext4/super.c:6362 [inline] [<00000000abace495>] ext4_enable_quotas+0x1b2/0x2f0 fs/ext4/super.c:6388 [<00000000b6d6a975>] ext4_fill_super+0x3bc5/0x5ac0 fs/ext4/super.c:5046 [<0000000003a869bd>] mount_bdev+0x223/0x260 fs/super.c:1366 [<000000002138e18c>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:592 [<0000000096e90d3d>] vfs_get_tree+0x28/0x100 fs/super.c:1496 [<00000000eddeeb8e>] do_new_mount fs/namespace.c:2875 [inline] [<00000000eddeeb8e>] path_mount+0xc5e/0x1170 fs/namespace.c:3205 [<00000000c52e2f18>] do_mount fs/namespace.c:3218 [inline] [<00000000c52e2f18>] __do_sys_mount fs/namespace.c:3426 [inline] [<00000000c52e2f18>] __se_sys_mount fs/namespace.c:3403 [inline] [<00000000c52e2f18>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3403 [<00000000e70a31f4>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 [<000000007f651b8c>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 --- 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 syzkal...@googlegroups.com. 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
