linux/fs/quota
Jan Kara 6a4e336379 quota: Properly disable quotas when add_dquot_ref() fails
When add_dquot_ref() fails (usually due to IO error or ENOMEM), we want
to disable quotas we are trying to enable. However dquot_disable() call
was passed just the flags we are enabling so in case flags ==
DQUOT_USAGE_ENABLED dquot_disable() call will just fail with EINVAL
instead of properly disabling quotas. Fix the problem by always passing
DQUOT_LIMITS_ENABLED | DQUOT_USAGE_ENABLED to dquot_disable() in this
case.

Reported-and-tested-by: Ye Bin <yebin10@huawei.com>
Reported-by: syzbot+e633c79ceaecbf479854@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20230605140731.2427629-2-yebin10@huawei.com>
2023-06-05 16:50:30 +02:00
..
compat.h quota: simplify the quotactl compat handling 2020-09-17 13:00:46 -04:00
dquot.c quota: Properly disable quotas when add_dquot_ref() fails 2023-06-05 16:50:30 +02:00
Kconfig quota: mark PRINT_QUOTA_WARNING as BROKEN 2023-04-14 13:06:50 +02:00
kqid.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile quota: simplify the quotactl compat handling 2020-09-17 13:00:46 -04:00
netlink.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
quota_tree.c quota: Add more checking after reading from quota file 2022-09-29 15:37:30 +02:00
quota_tree.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
quota_v1.c quota: fixup *_write_file_info() to return proper error code 2023-03-20 17:27:42 +01:00
quota_v2.c quota: fixup *_write_file_info() to return proper error code 2023-03-20 17:27:42 +01:00
quota.c fs: Drop wait_unfrozen wait queue 2023-05-30 15:36:40 +02:00
quotaio_v1.h quota: avoid time_t in v1_disk_dqblk definition 2019-12-16 14:15:30 +01:00
quotaio_v2.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00