CVE-2023-53335RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
- 7.5HighCVSS base score
- 0.49%Exploitation in 30 daysEPSS · top 57% 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: RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish() If get_ep_from_tid() fails to lookup non-NULL value for ep, ep is dereferenced later regardless of whether it is empty. This patch adds a simple sanity check to fix the issue. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 11 months later
· 11 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 |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 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)
- 0.49% · top 57% 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: High 7.5.
Affected products
- affected 944661dd97f4f257cd914fffec7eb80832ff9141 – < 9dca64042d855a24b0bd81ce242e5dc7e939f6eb
- affected 944661dd97f4f257cd914fffec7eb80832ff9141 – < 2cfc00e974d75a3aa8155f2660f57d342e1f67ca
- affected 944661dd97f4f257cd914fffec7eb80832ff9141 – < 9ddc77eefb2a567b705c3c86ab2ddabe43cadf1b
- affected 944661dd97f4f257cd914fffec7eb80832ff9141 – < 283861a4c52c1ea4df3dd1b6fc75a50796ce3524
- affected 4.7
- unaffected < 4.7
- unaffected 5.15.99 – ≤ 5.15.*
- unaffected 6.1.16 – ≤ 6.1.*
- unaffected 6.2.3 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/9dca64042d855a24b0bd81ce242e5dc7e939f6eb (opens in a new tab)
- https://git.kernel.org/stable/c/2cfc00e974d75a3aa8155f2660f57d342e1f67ca (opens in a new tab)
- https://git.kernel.org/stable/c/9ddc77eefb2a567b705c3c86ab2ddabe43cadf1b (opens in a new tab)
- https://git.kernel.org/stable/c/283861a4c52c1ea4df3dd1b6fc75a50796ce3524 (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-2023-59991 (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-2023-53335)Record last updated .