CVE-2022-50451

fs/ntfs3: Fix memory leak on ntfs_fill_super() error path

State: Published
Severity: Not scored
Published: Oct 1, 2025
Updated: Aug 15, 2026
Reserved: Sep 17, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Fix memory leak on ntfs_fill_super() error path

syzbot reported kmemleak as below:

BUG: memory leak unreferenced object 0xffff8880122f1540 (size 32): comm "a.out", pid 6664, jiffies 4294939771 (age 25.500s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 ed ff ed ff 00 00 00 00 ................ backtrace: [<ffffffff81b16052>] ntfs_init_fs_context+0x22/0x1c0 [<ffffffff8164aaa7>] alloc_fs_context+0x217/0x430 [<ffffffff81626dd4>] path_mount+0x704/0x1080 [<ffffffff81627e7c>] __x64_sys_mount+0x18c/0x1d0 [<ffffffff84593e14>] do_syscall_64+0x34/0xb0 [<ffffffff84600087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

This patch fixes this issue by freeing mount options on error path of ntfs_fill_super().

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	78e4aebc35b3e4494a96ffe7534db7201aba869f to before 2dd9ccfb06bcdad30ad92d96c3affa38a458679eAffected cd39981fb92adf0cc736112f87e3e61602baa415 to before ff0df7d9cdbb12878155168b5234e99029e5377fAffected cd39981fb92adf0cc736112f87e3e61602baa415 to before 2600c80ea7b39f987c3fa89287e73d62e322bbbdAffected cd39981fb92adf0cc736112f87e3e61602baa415 to before 51e76a232f8c037f1d9e9922edc25b003d5f3414Affected 0fd64f062c8d1793d8d6d39fa3a4468e39880f90Affected 5.15.63 to before 5.15.87Affected 5.19.4 to before 5.20Affected
LinuxLinux	6.0Affected before 6.0Not affected 5.15.87 through 5.15.Not affected 6.0.17 through 6.0.Not affected 6.1.3 through 6.1.*Not affected 6.2 and laterNot affected

Product

Versions

LinuxLinux

78e4aebc35b3e4494a96ffe7534db7201aba869f to before 2dd9ccfb06bcdad30ad92d96c3affa38a458679eAffected
cd39981fb92adf0cc736112f87e3e61602baa415 to before ff0df7d9cdbb12878155168b5234e99029e5377fAffected
cd39981fb92adf0cc736112f87e3e61602baa415 to before 2600c80ea7b39f987c3fa89287e73d62e322bbbdAffected
cd39981fb92adf0cc736112f87e3e61602baa415 to before 51e76a232f8c037f1d9e9922edc25b003d5f3414Affected
0fd64f062c8d1793d8d6d39fa3a4468e39880f90Affected
5.15.63 to before 5.15.87Affected
5.19.4 to before 5.20Affected

LinuxLinux

6.0Affected
before 6.0Not affected
5.15.87 through 5.15.*Not affected
6.0.17 through 6.0.*Not affected
6.1.3 through 6.1.*Not affected
6.2 and laterNot affected

References

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