CVE-2026-98912
ALSA: seq: oss: Reject reads that cannot fit the next event
No known exploitation. No EPSS score yet. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- LinuxAffected: ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b3b4b647313757a275be7f7f9d0415d0a90acf73Upgrade to: b3b4b647313757a275be7f7f9d0415d0a90acf73Affected: ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 591226398c1f93bd994678237ff0be229b19d3bbUpgrade to: 591226398c1f93bd994678237ff0be229b19d3bbAffected: ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 372bec8a01e2ab8eaa6851bdc346ede5f82dba99Upgrade to: 372bec8a01e2ab8eaa6851bdc346ede5f82dba99Affected: ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2922cf2583e590f51bed613a6fcd27b9aea83674Upgrade to: 2922cf2583e590f51bed613a6fcd27b9aea83674 + 9 more branchesStated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Reject reads that cannot fit the next event snd_seq_oss_read() checks whether the next queued OSS sequencer event fits in the remaining userspace buffer before removing it from the read queue. The check is inverted. It currently stops when the event is smaller than the remaining buffer, so a normal 4-byte event is not copied for an 8-byte read buffer. Conversely, an 8-byte event can be copied for a smaller read count. Break only when the remaining userspace buffer is smaller than the next event, and report -EINVAL if no complete event has been copied. This prevents an undersized read from looking like end-of-file while leaving the event queued for a later read with a large enough buffer.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
No EPSS score yet. New CVEs are usually scored within a few days.
Affected products
Sources
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