In the Linux kernel, the following vulnerability has been resolved:
mm: zswap: fix missing folio cleanup in writeback race path
In zswap_writeback_entry(), after we get a folio from
__read_swap_cache_async(), we grab the tree lock again to check that the
swap entry was not invalidated and recycled. If it was, we delete the
folio we just added to the swap cache and exit.
However, __read_swap_cache_async() returns the folio locked when it is
newly allocated, which is always true for this path, and the folio is
ref'd. Make sure to unlock and put the folio before returning.
This was discovered by code inspection, probably because this path handles
a race condition that should not happen often, and the bug would not crash
the system, it will only strand the folio indefinitely.
References
Configurations
Configuration 1 (hide)
|
History
02 Apr 2025, 13:18
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| References | () https://git.kernel.org/stable/c/14f1992430ef9e647b02aa8ca12c5bcb9a1dffea - Patch | |
| References | () https://git.kernel.org/stable/c/6156277d1b26cb3fdb6fcbf0686ab78268571644 - Patch | |
| References | () https://git.kernel.org/stable/c/e2891c763aa2cff74dd6b5e978411ccf0cf94abe - Patch | |
| References | () https://git.kernel.org/stable/c/e3b63e966cac0bf78aaa1efede1827a252815a1d - Patch | |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.3.4:*:*:*:*:*:*:* |
|
| CWE | CWE-459 |
Information
Published : 2024-04-17 10:15
Updated : 2025-04-02 13:18
NVD link : CVE-2024-26832
Mitre link : CVE-2024-26832
CVE.ORG link : CVE-2024-26832
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-459
Incomplete Cleanup