CVE-2026-31739: Linux kernel · crypto: tegra – Add missing CRYPTO_ALG_ASYNC
Source GCVE Database
Not known to be exploited · CVSS 8.8 High · fixed in bdbf027a4504b4a86740de6beb6d18a957331839 : patch Linux kernel soon.
Data as of 27 Oct 2026, 01:02 UTC
- Patch
- Available – fixed in bdbf027a4504b4a86740de6beb6d18a957331839, 429d05565eb19ee545d8a8395991372adbe4daf3, 4b56770d345524fc2acc143a2b85539cf7d74bc1 +1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Linux kernel to bdbf027a4504b4a86740de6beb6d18a957331839, 429d05565eb19ee545d8a8395991372adbe4daf3, 4b56770d345524fc2acc143a2b85539cf7d74bc1 or 3aea268b6d5cde3b087df9eeecc3bc620aa09513.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available that adds the missing CRYPTO_ALG_ASYNC flag to the Tegra crypto driver and removes unnecessary flags. Users should apply the official Linux kernel updates that include this correction. No additional mitigation steps are indicated.
Description
A vulnerability in the Linux kernel's Tegra crypto driver caused asynchronous algorithms to be incorrectly flagged, leading to crashes when synchronous algorithms were requested. This issue was fixed by properly setting the CRYPTO_ALG_ASYNC flag and cleaning up unnecessary flags.
References
- nvd.nist.gov/vuln/detail/CVE-2026-31739 (opens in a new tab)
- git.kernel.org/stable/c/3aea268b6d5cde3b087df9eeecc3bc620aa09513 (opens in a new tab)
- git.kernel.org/stable/c/429d05565eb19ee545d8a8395991372adbe4daf3 (opens in a new tab)
- git.kernel.org/stable/c/4b56770d345524fc2acc143a2b85539cf7d74bc1 (opens in a new tab)
- git.kernel.org/stable/c/bdbf027a4504b4a86740de6beb6d18a957331839 (opens in a new tab)