| Name | CVE-2026-53213 |
| 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(). |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4665-1, DLA-4671-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bullseye | 5.10.223-1 | vulnerable |
| bullseye (security) | 5.10.259-1 | vulnerable | |
| bookworm, bookworm (security) | 6.1.176-1 | fixed | |
| trixie | 6.12.94-1 | fixed | |
| trixie (security) | 6.12.95-1 | fixed | |
| forky, sid | 7.1.3-1 | fixed | |
| linux-6.1 (PTS) | bullseye (security) | 6.1.176-1~deb11u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | bookworm | 6.1.176-1 | DLA-4665-1 | ||
| linux | source | trixie | 6.12.94-1 | |||
| linux | source | (unstable) | 7.0.13-1 | |||
| linux-6.1 | source | bullseye | 6.1.176-1~deb11u1 | DLA-4671-1 |
https://git.kernel.org/linus/5d563a5da8717629ae72f9eadf1e0e340bd1658b (7.1)