CVE-2026-98316ALSA: bcd2000: Fix race between rawmidi and disconnect
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: Fix race between rawmidi and disconnect Although we tried to fix the potential UAF issues at USB disconnect on bcd2000 driver, there is still an overlooked case -- namely, when a rawmidi trigger callback has been already running at USB disconnect handling, the in-flight function (e.g. bcd2000_midi_send()) could still access the URB, because the previous URB NULL-check & clearance was considered only for the URB complete callbacks, but not about the parallel rawmidi operations. For addressing the race, this patch introduced a new spinlock that covers each rawmidi operation as well as the rawmidi handling in the complete callback. The URB is cleared with the lock, so it guarantees that the pending rawmidi task already finished or a NULL check is effective.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 3c00004f134fc819f9d9e202c6a64acde0a1f8d0 builds before 3b824930259d54f5047ce6b5c97bd20db2fc2b98; from 6c07aad8a7c9ef8ebc4d03a964b882123a349a2e before c83d6b0a65f7b71bbabcc91c045dfbffdff6ae76; from eb482a06791d6168beb8c78cc904ac5a5ed96a55 before 0a7ecf52cb59ed77ec525deb52c496ea8fba10b1; from 7df3194bdb7479cad9199889655a566a2c0c1d1b before 812ca56867bec3065c2a27f1ff5ce04e2a8bf4f0; from b06ebc7fe25a6af4a9f6e4a3d4236a4178ad4b01 before 9c8b6eff6e7505c128b615d9a1364ef66fa5c18e; from 459d3a64766f5ca2f1886daeaf24582831a5f5ab before 221253723dc58bb901c3f27a7659823e63fc598c; 9af08677aa57debaca5b57c8045c52a83d3dd376; 5a77febac6faf6da40fbb4555f703eeb91b58130; and 7 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/3b824930259d54f5047ce6b5c97bd20db2fc2b98
- https://git.kernel.org/stable/c/c83d6b0a65f7b71bbabcc91c045dfbffdff6ae76
- https://git.kernel.org/stable/c/0a7ecf52cb59ed77ec525deb52c496ea8fba10b1
- https://git.kernel.org/stable/c/812ca56867bec3065c2a27f1ff5ce04e2a8bf4f0
- https://git.kernel.org/stable/c/9c8b6eff6e7505c128b615d9a1364ef66fa5c18e
- https://git.kernel.org/stable/c/221253723dc58bb901c3f27a7659823e63fc598c
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.