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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-53213

drm/vc4: fix krealloc() memory leak

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: fix krealloc() memory leak Don't just overwrite the original pointer passed to krealloc() with its return value without checking latter: MEM = krealloc(MEM, SZ, GFP); If krealloc() returns NULL, that erases the pointer to the still allocated memory, hence leaks this memory. Instead, use a temporary variable, check it's not NULL and only then assign it to the original pointer: TMP = krealloc(MEM, SZ, GFP); if (!TMP) return; MEM = TMP; While on it, use krealloc_array().

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

  • 6d45c81d229d71da54d374143e7d6abad4c0cf31 to < 30165a09f76eaf34951c818eb5d9d6e4771d76f6affected
  • 6d45c81d229d71da54d374143e7d6abad4c0cf31 to < fd87d6966041e33ef7d2e5dc59f9a52b71c6ae5faffected
  • 6d45c81d229d71da54d374143e7d6abad4c0cf31 to < e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2eaffected
  • 6d45c81d229d71da54d374143e7d6abad4c0cf31 to < c034aa0b1ba5f49cbdf8ef193d6ec714d74aac27affected
  • 6d45c81d229d71da54d374143e7d6abad4c0cf31 to < 02f5e4db57c0cdd7bac89d503b301a093a0fa95caffected
  • 6d45c81d229d71da54d374143e7d6abad4c0cf31 to < 4fc692dc6df5bc777cc1bcebf95179e28594875faffected
  • 6d45c81d229d71da54d374143e7d6abad4c0cf31 to < 5d563a5da8717629ae72f9eadf1e0e340bd1658baffected

Linux Linux

Default version status: affected

  • 4.8affected
  • 0 to < 4.8unaffected
  • 5.15.210 to ≤ 5.15.*unaffected
  • 6.1.176 to ≤ 6.1.*unaffected
  • 6.6.143 to ≤ 6.6.*unaffected
  • 6.12.94 to ≤ 6.12.*unaffected
  • 6.18.36 to ≤ 6.18.*unaffected
  • 7.0.13 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References