PatchTheCVECVE-2026-31581: In the Linux kernel, the following vulnerability has been resolved: ALSA: 6fire: fix use-after-free on discon
CVE-2026-31581 is a high-severity flaw (CVSS 7.8) affecting linux kernel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In the Linux kernel, the following vulnerability has been resolved: ALSA: 6fire: fix use-after-free on disconnect In usb6fire_chip_abort(), the chip struct is allocated as the card's private data (via snd_card_new with sizeof(struct sfire_chip)). When snd_card_free_when_closed() is called and no file handles are open, the card and embedded chip are freed synchronously. The subsequent chip->card = NULL write then hits freed slab memory. Call
Why this priority
- High severity
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 98%) |
| CISA exploited list | No |
| Weakness | CWE-416 |
| Published | 2026-04-24 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Official advisories
- AlmaLinux Errata: [ALSA-2026:25217] Important: kernel security update 2026-06-11
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-31581?
linux kernel: upgrade to 6.6.136, 6.12.83, 6.18.24, 6.19.14, 7.0.1. Exact commands for each OS are on this page.
Is CVE-2026-31581 being exploited?
CVE-2026-31581 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-31581 affect?
CVE-2026-31581 affects linux kernel. Severity is high (CVSS 7.8). In the Linux kernel, the following vulnerability has been resolved: ALSA: 6fire: fix use-after-free on disconnect In usb6fire_chip_abort(), the chip struct is allocated as the card's private data (via snd_card_new with sizeof(struct sfire
How urgent is CVE-2026-31581?
Priority 33/100. High severity; On your watchlist
Software pages
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