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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-31459

mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f to < e9de9f3ce06b133a348006668bc8d25c6e504867affected
  • f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f to < f76f0a964bc3d7b7e253b43c669c41356bc54e71affected
  • f0c5118ebb0eb7e4fd6f0d2ace3315ca141b317f to < 7fe000eb32904758a85e62f6ea9483f89d5dabfcaffected
  • 5b3609d9b9650bdea0bfdf643e0ce57e1aed67fcaffected
  • 6.17.6 to < 6.18affected

Linux Linux

Default version status: affected

  • 6.18affected
  • 0 to < 6.18unaffected
  • 6.18.21 to ≤ 6.18.*unaffected
  • 6.19.11 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References