CVE-2026-64146: fallo en Linux
erofs: fix metabuf leak in inode xattr initialization
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
3Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackepss 0.1%
In the Linux kernel, the following vulnerability has been resolved:
erofs: fix metabuf leak in inode xattr initialization
commit bb88e8da0025 ("erofs: use meta buffers for xattr operations")
converted xattr operations to use on-stack erofs_buf instances.
erofs_init_inode_xattrs() uses such a metabuf while reading the inline
xattr header and shared xattr id array.
Some error paths after erofs_read_metabuf() leave through out_unlock
without dropping the metabuf, so the folio reference can leak.
Consolidate the cleanup at out_unlock. erofs_put_metabuf() is a
no-op if no folio has been acquired, and this keeps all paths after
taking EROFS_I_BL_XATTR_BIT covered by a single cleanup site.
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
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Referencias
https://git.kernel.org/stable/c/3812cfe6cb0a5988df4fedcdaf9aab677b9cca61https://git.kernel.org/stable/c/492c73b21fefa36f3869cb2b188ffb7fe37b3a9bhttps://git.kernel.org/stable/c/79b09c54c6563df9846ca3094bcfd72082c3e1d7https://git.kernel.org/stable/c/89682dd09efb3825b0f162a72e342c52b69ea14ahttps://git.kernel.org/stable/c/e4a552e0b6413c1af2e140b5bc14bb849b411b57https://git.kernel.org/stable/c/fcb23bb31508b62e8a1b32adf6217820e90e29b0