CVE-2026-64146
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-07-19
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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.
Weakness Classification (1)
Affected Software (12)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | bb88e8da00253bea0e7f0f4cdfd7910572d7799f < 89682dd09efb3825b0f162a72e342c52b69ea14a |
| Linux | Linux | bb88e8da00253bea0e7f0f4cdfd7910572d7799f < 3812cfe6cb0a5988df4fedcdaf9aab677b9cca61 |
| Linux | Linux | bb88e8da00253bea0e7f0f4cdfd7910572d7799f < e4a552e0b6413c1af2e140b5bc14bb849b411b57 |
| Linux | Linux | bb88e8da00253bea0e7f0f4cdfd7910572d7799f < fcb23bb31508b62e8a1b32adf6217820e90e29b0 |
| Linux | Linux | bb88e8da00253bea0e7f0f4cdfd7910572d7799f < 492c73b21fefa36f3869cb2b188ffb7fe37b3a9b |
| Linux | Linux | bb88e8da00253bea0e7f0f4cdfd7910572d7799f < 79b09c54c6563df9846ca3094bcfd72082c3e1d7 |
| Linux | Linux | 5.17 |
| linux | linux_kernel | 5.17 – 7.0.11 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |