CVE-2022-50867 (GCVE-0-2022-50867)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:15 – Updated: 2025-12-30 13:56
VLAI?
Title
drm/msm/a6xx: Fix kvzalloc vs state_kcalloc usage
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Fix kvzalloc vs state_kcalloc usage adreno_show_object() is a trap! It will re-allocate the pointer it is passed on first call, when the data is ascii85 encoded, using kvmalloc/ kvfree(). Which means the data *passed* to it must be kvmalloc'd, ie. we cannot use the state_kcalloc() helper. This partially reverts commit ec8f1813bf8d ("drm/msm/a6xx: Replace kcalloc() with kvzalloc()"), but adds the missing kvfree() to fix the memory leak that was present previously. And adds a warning comment. Patchwork: https://patchwork.freedesktop.org/patch/507014/
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b859f9b009bbfbc236d9b076c64c59ccb41b8737 , < 4b1bbc0571a5d7ee10f754186dc3d619b9ced5c1 (git)
Affected: b859f9b009bbfbc236d9b076c64c59ccb41b8737 , < 83d18e9d9c0150d98dc24e3642ea93f5e245322c (git)
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    Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 6.0.7 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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    "datePublished": "2025-12-30T12:15:38.520Z",
    "dateReserved": "2025-12-30T12:06:07.136Z",
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