net: ethernet: oa_tc6: Improve the error recovery

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98105
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:40 UTC
Updated2026-09-25 11:17:40 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: ethernet: oa_tc6: Improve the error recovery When oversubscribed traffic causes lot of buffer overflow errors, probably due to loss of data chunks, driver fails to find a data chunk with end_valid bit set, before it runs out of sk buffer space. As a result, assert is seen during skb_put. Now, check is made if skb buffer has enough tailroom for the incoming data before accepting. If there is no room, current frame is abandoned and it will start looking for a data chunk with start_valid bit, that is a new frame. SK buffer allocation error is considered as recoverable error. rx_buf_overflow flag is too specific and no longer the only condition this flag is used for. Therefore it is renamed as wait_until_start_valid. This is more appropriate as this flag is used to look for the next data chunk with SV bit set, after failures like buffer overflow, buffer allocation failure, skb pointer validity besides buffer overflow error. Not writing to status0 if it reads 0.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770 d33003e752f25c385f2cf21964123582a44f6818 git Not specified
CNA Linux Linux affected d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770 9d3f6e714d5f8b728837f31bbe865b64cfd3216a git Not specified
CNA Linux Linux affected d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770 b89770d493749d7c3b8649996e1089719b4eff8d git Not specified
CNA Linux Linux affected d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770 172c974113bffe5723b80b1acac17593bb50513c git Not specified
CNA Linux Linux affected 6.12 Not specified
CNA Linux Linux unaffected 6.12 semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/172c974113bffe5723b80b1acac17593bb50513c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b89770d493749d7c3b8649996e1089719b4eff8d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9d3f6e714d5f8b728837f31bbe865b64cfd3216a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d33003e752f25c385f2cf21964123582a44f6818 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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