CVE-2026-98298
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)
dmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg()
In the Linux kernel, the following vulnerability has been resolved: dmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg() In mmp_pdma_prep_slave_sg(), for_each_sg() iterates the scatterlist putting each entry into 'sg', but the entry length is read from 'sgl' (the list head) instead of 'sg' (the current entry): for_each_sg(sgl, sg, sg_len, i) { addr = sg_dma_address(sg); avail = sg_dma_len(sgl); /* should be 'sg' */ Consequently 'avail' is always the length of the first entry. For multi-sg lists this causes out-of-bounds reads when a later entry is shorter than the first, and silent data loss when it is longer. Single-sg or uniformly-sized lists happen to mask the issue.
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) |
|---|---|---|---|---|---|
| c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 | affected | git | f448a5f5bd10d792440a1b08cf2e8f311767032d | Unavailable | None listed |
| c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 | affected | git | 2148db529f082d6e3ca95413bf943442f4ef30cc | Unavailable | None listed |
| c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 | affected | git | d920c07aa6d89ec11afdb6976aafaee9563a5234 | Unavailable | None listed |
| c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 | affected | git | 4a33886057e6d127555efb022879c583e966acc5 | Unavailable | None listed |
| c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 | affected | git | 88a505330eb06128f7ce79a4c5e4832b7601b3d1 | Unavailable | None listed |
| c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 | affected | git | bae65e4925928f77824ca0103122e2ed20ef5802 | Unavailable | None listed |
| c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 | affected | git | 54ccc01012a240476edf641bf1a2b8bff54fe6ae | Unavailable | None listed |
| c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 | affected | git | 075bc7b1d3dde5ed43fbaabbc1a69f09b7fc3a47 | 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) |
|---|---|---|---|---|---|
| 3.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.7 | Unavailable | None listed |
| 5.10.271 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.222 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.54 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.8 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |