NULL Pointer Dereference Affecting torvalds/linux package, versions [5.11,6.1.191)[6.2,6.6.72)[6.7,6.12.10)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published10 Oct 2026
- disclosed21 Jan 2025
- creditUnknown
Introduced: 21 Jan 2025
CVE-2025-21658 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.1.191, 6.6.72, 6.12.10 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the scrub_find_fill_first_stripe process. An attacker can cause a system crash by triggering a scrub operation on a corrupted image with an invalid extent tree root, leading to a NULL pointer dereference during kernel execution. This is only exploitable if the filesystem is mounted with the "rescue=all,ro" option on a corrupted image.
Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst