CVE-2026-43463rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()
- 5.5MediumCVSS base score
- 0.11%Exploitation in 30 daysEPSS · top 98% 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: rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer() rxrpc_kernel_lookup_peer() can also return error pointers in addition to NULL, so just checking for NULL is not sufficient. Fix this by: (1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL on allocation failure. (2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the error code returned.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 6 months later
· 6 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 · Modified | 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)
- 0.11% · top 98% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 72904d7b9bfbf2dd146254edea93958bc35bbbfe – < d854c93b12f2076c564f595b41b93b02fd42a0f9
- affected 72904d7b9bfbf2dd146254edea93958bc35bbbfe – < d55fa7cd4b19ba91b34b307d769c149e56ad0a75
- affected 72904d7b9bfbf2dd146254edea93958bc35bbbfe – < 54331c5dcc6d97683d7ca2788e7ef9c9505e1477
- affected 72904d7b9bfbf2dd146254edea93958bc35bbbfe – < 4245a79003adf30e67f8e9060915bd05cb31d142
- affected 056fc740be000d39a7dba700a935f3bbfbc664e6
- affected 6.7.3 – < 6.8
- affected 6.8
- unaffected < 6.8
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.19 – ≤ 6.18.*
- unaffected 6.19.9 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References4
- https://git.kernel.org/stable/c/d854c93b12f2076c564f595b41b93b02fd42a0f9 (opens in a new tab)
- https://git.kernel.org/stable/c/d55fa7cd4b19ba91b34b307d769c149e56ad0a75 (opens in a new tab)
- https://git.kernel.org/stable/c/54331c5dcc6d97683d7ca2788e7ef9c9505e1477 (opens in a new tab)
- https://git.kernel.org/stable/c/4245a79003adf30e67f8e9060915bd05cb31d142 (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-2026-28769 (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-2026-43463)Record last updated .