| Release Date: | 2024-05-01 | |
| Impact: | Moderate | What is this? |
In the Linux kernel, the following vulnerability has been resolved:
nfs: fix UAF in direct writes
In production we have been hitting the following warning consistently
------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 17 PID: 1800359 at lib/refcount.c:28 refcount_warn_saturate+0x9c/0xe0
Workqueue: nfsiod nfs_direct_write_schedule_work [nfs]
RIP: 0010:refcount_warn_saturate+0x9c/0xe0
PKRU: 55555554
Call Trace:
See more information about CVE-2024-26958 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
| Base Score: | 5.5 |
| Vector String: | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Version: | 3.1 |
| Attack Vector: | Local |
| Attack Complexity: | Low |
| Privileges Required: | Low |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | High |
| Platform | Errata | Release Date |
| Oracle Linux version 7 (kernel-uek) | ELSA-2025-20663 | 2025-10-11 |
| Oracle Linux version 8 (kernel) | ELSA-2024-5101 | 2024-08-08 |
| Oracle Linux version 8 (kernel-uek) | ELSA-2025-20663 | 2025-10-11 |
| Oracle Linux version 9 (kernel) | ELSA-2024-9315 | 2024-11-14 |
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