{"id":"CVE-2026-53213","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: fix krealloc() memory leak\n\nDon't just overwrite the original pointer passed to krealloc()\nwith its return value without checking latter:\n\n    MEM = krealloc(M…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: fix krealloc() memory leak\n\nDon't just overwrite the original pointer passed to krealloc()\nwith its return value without checking latter:\n\n    MEM = krealloc(M…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.8, < 5.15.210","linux_kernel >= 5.16, < 6.1.176","linux_kernel >= 6.2, < 6.6.143","linux_kernel >= 6.7, < 6.12.94","linux_kernel >= 6.13, < 6.18.36","linux_kernel >= 6.19, < 7.0.13","linux_kernel = 7.1"],"patched":["linux_kernel 7.0.13"],"published":"2026-06-25","updated":"2026-07-02","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-53213","references":[{"url":"https://git.kernel.org/stable/c/02f5e4db57c0cdd7bac89d503b301a093a0fa95c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/30165a09f76eaf34951c818eb5d9d6e4771d76f6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4fc692dc6df5bc777cc1bcebf95179e28594875f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5d563a5da8717629ae72f9eadf1e0e340bd1658b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c034aa0b1ba5f49cbdf8ef193d6ec714d74aac27","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fd87d6966041e33ef7d2e5dc59f9a52b71c6ae5f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00123,"epssPercentile":0.02341,"ingestedAt":"2026-07-03T13:02:28.042Z","slug":"CVE-2026-53213","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: fix krealloc() memory leak\n\nDon't just overwrite the original pointer passed to krealloc()\nwith its return value without checking latter:\n\n    MEM = krealloc(MEM, SZ, GFP);\n\nIf krealloc() returns NULL, that erases the pointer\nto the still allocated memory, hence leaks this memory.\nInstead, use a temporary variable, check it's not NULL\nand only then assign it to the original pointer:\n\n    TMP = krealloc(MEM, SZ, GFP);\n    if (!TMP) return;\n    MEM = TMP;\n\nWhile on it, use krealloc_array().\n\n## Affected\n\n- `linux_kernel >= 4.8, < 5.15.210`\n- `linux_kernel >= 5.16, < 6.1.176`\n- `linux_kernel >= 6.2, < 6.6.143`\n- `linux_kernel >= 6.7, < 6.12.94`\n- `linux_kernel >= 6.13, < 6.18.36`\n- `linux_kernel >= 6.19, < 7.0.13`\n- `linux_kernel = 7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.13`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}