CVE-2026-43043
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
crypto: af-alg - fix NULL pointer dereference in scatterwalk
In the Linux kernel, the following vulnerability has been resolved: crypto: af-alg - fix NULL pointer dereference in scatterwalk The AF_ALG interface fails to unmark the end of a Scatter/Gather List (SGL) when chaining a new af_alg_tsgl structure. If a sendmsg() fills an SGL exactly to MAX_SGL_ENTS, the last entry is marked as the end. A subsequent sendmsg() allocates a new SGL and chains it, but fails to clear the end marker on the previous SGL's last data entry. This causes the crypto scatterwalk to hit a premature end, returning NULL on sg_next() and leading to a kernel panic during dereference. Fix this by explicitly unmarking the end of the previous SGL when performing sg_chain() in af_alg_alloc_tsgl().
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) |
|---|---|---|---|---|---|
| 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 | affected | git | f48d3dd99199180cf37d6253550c55e86372309a | Unavailable | None listed |
| 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 | affected | git | f9acceae7b004956851fd4268edf9f518a9bce04 | Unavailable | None listed |
| 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 | affected | git | 7195350fb78538c25cd790d703f8f2c73ee0d395 | Unavailable | None listed |
| 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 | affected | git | 7cdf2c6381b21ab5ccf8116750d5582fcd6c0f49 | Unavailable | None listed |
| 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 | affected | git | 44eafa39363e8d5dfda6a8c6eb6b45458ed4b948 | Unavailable | None listed |
| 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 | affected | git | 00cbdec17c15d024a1c5002c7365df7624a18a75 | Unavailable | None listed |
| 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 | affected | git | 4b03ab0a587ec57eb7ddb5c115d84a42896f60f7 | Unavailable | None listed |
| 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 | affected | git | 62397b493e14107ae82d8b80938f293d95425bcb | 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) |
|---|---|---|---|---|---|
| 2.6.38 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.38 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.134 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.81 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.22 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.12 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |