CVEvulnerability
CVE-2026-98105
- Status
- Undergoing Analysis
- Published
- 2026-09-25
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/172c974113bffe5723b80b1acac17593bb50513c git.kernel.org
- https://git.kernel.org/stable/c/9d3f6e714d5f8b728837f31bbe865b64cfd3216a git.kernel.org
- https://git.kernel.org/stable/c/b89770d493749d7c3b8649996e1089719b4eff8d git.kernel.org
- https://git.kernel.org/stable/c/d33003e752f25c385f2cf21964123582a44f6818 git.kernel.org