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CVE-2026-31459

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CVE-2026-31459

Published: Apr 22, 2026

Modified: May 23, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure Patch series "mm/damon/sysfs: fix memory leak and NULL dereference issues", v4. DAMON_SYSFS can leak memory under allocation failure, and do NULL pointer dereference when a privileged user make wrong sequences of control. Fix those. This patch (of 3): When damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(), param_ctx is leaked because the early return skips the cleanup at the out label. Destroy param_ctx before returning.

VendorProductVersions

Linux

Linux

affected
f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f - < e9de9f3ce06b133a348006668bc8d25c6e504867
affected
f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f - < f76f0a964bc3d7b7e253b43c669c41356bc54e71
affected
f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f - < 7fe000eb32904758a85e62f6ea9483f89d5dabfc
affected
5b3609d9b9650bdea0bfdf643e0ce57e1aed67fc
affected
6.17.6 - < 6.18

Linux

Linux

affected
6.18
unaffected
0 - < 6.18
unaffected
6.18.21 - <= 6.18.*
unaffected
6.19.11 - <= 6.19.*
unaffected
7.0 - <= *

References

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