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CVE-2023-53648ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer
- 5.5MediumCVSS base score
- 0.21%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer smatch error: sound/pci/ac97/ac97_codec.c:2354 snd_ac97_mixer() error: we previously assumed 'rac97' could be null (see line 2072) remove redundant assignment, return error if rac97 is NULL.
Timeline
ID reserved
By Linux
Published
- 13 months later
· 13 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < 809af7bb4219bdeef0dbb8b2ed700d6516d13fe9
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < e4cccff1e7ab6ea30995b6fbbb007d02647e025c
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < 5f13d67027fa782096e6aee0db5dce61c4aeb613
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < f923a582217b198b557756809ffe42ac0fad6adb
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < 300e26e3e64880de5013eac8831cf44387ef752c
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < d28b83252e150155b8b8c65b612c555e93c8b45f
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < 09baf460dfba79ee6a0c72e68ccdbbba84d894df
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < 228da1fa124470606ac19783e551f9d51a1e01b0
- affected da3cec35dd3c31d8706db4bf379372ce70d92118 – < 79597c8bf64ca99eab385115743131d260339da5
- affected 2.6.28
- unaffected < 2.6.28
- unaffected 4.14.322 – ≤ 4.14.*
- unaffected 4.19.291 – ≤ 4.19.*
- unaffected 5.4.251 – ≤ 5.4.*
- unaffected 5.10.188 – ≤ 5.10.*
- unaffected 5.15.121 – ≤ 5.15.*
- unaffected 6.1.39 – ≤ 6.1.*
- unaffected 6.3.13 – ≤ 6.3.*
- unaffected 6.4.4 – ≤ 6.4.*
- unaffected 6.5 – ≤ *
References
References9
- https://git.kernel.org/stable/c/809af7bb4219bdeef0dbb8b2ed700d6516d13fe9 (opens in a new tab)
- https://git.kernel.org/stable/c/e4cccff1e7ab6ea30995b6fbbb007d02647e025c (opens in a new tab)
- https://git.kernel.org/stable/c/5f13d67027fa782096e6aee0db5dce61c4aeb613 (opens in a new tab)
- https://git.kernel.org/stable/c/f923a582217b198b557756809ffe42ac0fad6adb (opens in a new tab)
- https://git.kernel.org/stable/c/300e26e3e64880de5013eac8831cf44387ef752c (opens in a new tab)
- https://git.kernel.org/stable/c/d28b83252e150155b8b8c65b612c555e93c8b45f (opens in a new tab)
- https://git.kernel.org/stable/c/09baf460dfba79ee6a0c72e68ccdbbba84d894df (opens in a new tab)
- https://git.kernel.org/stable/c/228da1fa124470606ac19783e551f9d51a1e01b0 (opens in a new tab)
- https://git.kernel.org/stable/c/79597c8bf64ca99eab385115743131d260339da5 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-31972 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-53648)Record last updated .