Updated: 2023-11-04 20:11:33.405729
Description:
In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | MEDIUM | 6.8 |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated |
|---|---|---|---|---|---|---|---|
| CentOS 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | In Rollout | CLSA-2023:1700591071 | 2023-11-21 16:09:29 |
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Released | CLSA-2023:1700590262 | 2023-11-21 13:26:13 |