CVE-2026-53335

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc4a8e662c839ac0003e4781aa324cb2d68ed9cb1 < 6d48f15659395bf1381114f01be91bc68e0be46aaffected
LinuxLinuxc4a8e662c839ac0003e4781aa324cb2d68ed9cb1 < daab1996431a71f43219dcac48ecc9ad2aad3f1caffected
LinuxLinuxc4a8e662c839ac0003e4781aa324cb2d68ed9cb1 < ab04340b5ae5d52c1d46b750538febcde9d889e7affected
LinuxLinux6.18affected
LinuxLinux0 < 6.18unaffected
LinuxLinux6.18.36 <= 6.18.*unaffected
LinuxLinux7.0.13 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References