FKIE_CVE-2023-53555

Vulnerability from fkie_nvd - Published: 2025-10-04 16:15 - Updated: 2026-03-23 18:41
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: initialize damo_filter->list from damos_new_filter() damos_new_filter() is not initializing the list field of newly allocated filter object. However, DAMON sysfs interface and DAMON_RECLAIM are not initializing it after calling damos_new_filter(). As a result, accessing uninitialized memory is possible. Actually, adding multiple DAMOS filters via DAMON sysfs interface caused NULL pointer dereferencing. Initialize the field just after the allocation from damos_new_filter().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f1fc67f2cb8d3035d3acd273b48b97835af8afdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da7beebb49c643cd03c54447ed66595936a7a1cePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.5
linux linux_kernel 6.5
linux linux_kernel 6.5
linux linux_kernel 6.5
linux linux_kernel 6.5
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/core: initialize damo_filter-\u003elist from damos_new_filter()\n\ndamos_new_filter() is not initializing the list field of newly allocated\nfilter object.  However, DAMON sysfs interface and DAMON_RECLAIM are not\ninitializing it after calling damos_new_filter().  As a result, accessing\nuninitialized memory is possible.  Actually, adding multiple DAMOS filters\nvia DAMON sysfs interface caused NULL pointer dereferencing.  Initialize\nthe field just after the allocation from damos_new_filter()."
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  "id": "CVE-2023-53555",
  "lastModified": "2026-03-23T18:41:06.603",
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          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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