CVE-2024-26832
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mm: zswap: fix missing folio cleanup in writeback race path
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2cab13f500a6333bd2b853783ac76be9e4956f8a | affected | git | 14f1992430ef9e647b02aa8ca12c5bcb9a1dffea | Unavailable | None listed |
| 04fc7816089c5a32c29a04ec94b998e219dfb946 | affected | git | 6156277d1b26cb3fdb6fcbf0686ab78268571644 | Unavailable | None listed |
| 04fc7816089c5a32c29a04ec94b998e219dfb946 | affected | git | e2891c763aa2cff74dd6b5e978411ccf0cf94abe | Unavailable | None listed |
| 04fc7816089c5a32c29a04ec94b998e219dfb946 | affected | git | e3b63e966cac0bf78aaa1efede1827a252815a1d | Unavailable | None listed |
| ba700ea13bf0105a4773c654f7d3bef8adb64ab2 | affected | git | Unavailable | Unavailable | None listed |
| 6.1.30 | affected | semver | 6.1.80 | Unavailable | None listed |
| 6.3.4 | affected | semver | 6.4 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.4 | Unavailable | None listed |
| 6.1.80 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.19 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7.7 | unaffected | semver | Unavailable | 6.7.* | None listed |
| 6.8 | unaffected | original_commit_for_fix | Unavailable | * | None listed |