CVE-2026-98105

net: ethernet: oa_tc6: Improve the error recovery

State
Published
Severity
Not scored
Published
Sep 25, 2026
Updated
Oct 19, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770 to before d33003e752f25c385f2cf21964123582a44f6818Affected
  • d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770 to before 9d3f6e714d5f8b728837f31bbe865b64cfd3216aAffected
  • d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770 to before b89770d493749d7c3b8649996e1089719b4eff8dAffected
  • d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770 to before 172c974113bffe5723b80b1acac17593bb50513cAffected
LinuxLinux
  • 6.12Affected
  • before 6.12Not affected
  • 6.12.111 through 6.12.*Not affected
  • 6.18.53 through 6.18.*Not affected
  • 7.2.7 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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