CVE-2026-53335 Details
Description
In the Linux kernel, the following vulnerability has been resolved: mm/damon/lru_sort: handle ctx allocation failure DAMON_LRU_SORT allocates the damon_ctx object for its kdamond in its init function. damon_lru_sort_enabled_store() wrongly assumes the allocation will always succeed once tried. If the damon_ctx allocation was failed, therefore, code execution reaches to damon_commit_ctx() while 'ctx' is NULL. As a result, it dereferences the NULL 'ctx' pointer. Avoid the NULL dereference by returning -ENOMEM if 'ctx' is NULL.
A NULL pointer dereference vulnerability has been identified in the Linux kernel's DAMON LRU sort feature. This issue arises because the DAMON LRU sort component incorrectly assumes that the allocation of the damon_ctx object will always succeed. When the allocation fails, the code attempts to use a NULL 'ctx' pointer, leading to a dereference error. The vulnerability is present in the Linux kernel stable tree, specifically in versions 6.18.x.
Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/6d48f15659395bf1381114f01be91bc68e0be46a | kernel.org | Patch |
| https://git.kernel.org/stable/c/ab04340b5ae5d52c1d46b750538febcde9d889e7 | kernel.org | Patch |
| https://git.kernel.org/stable/c/daab1996431a71f43219dcac48ecc9ad2aad3f1c | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.18, < 6.18.36 >= 6.19, < 7.0.13 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 7.1 rc5 7.1 rc6 7.1 rc7 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | Initial Analysis | [email protected] |
| Jul 1, 2026 | New CVE Received | kernel.org |