CVE-2026-90177bpf: Check pointer type for all atomic RMW paths
- 7.8HighCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 94% 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: bpf: Check pointer type for all atomic RMW paths Atomic RMW verification records an instruction pointer type only when the current destination is PTR_TO_ARENA. A second path can therefore reach the same instruction with an ordinary pointer without comparing it against the saved arena type. The post-verification fixup uses the saved type to rewrite the instruction to BPF_PROBE_ATOMIC for every path. Record the actual destination type for all atomic RMW paths so the existing mismatch check rejects incompatible uses of one instruction.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 34 days later
· 34 days 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 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 94% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected d503a04f8bc0c75dc9db9452d8cc79d748afb752 – < b14dabe9656c1029abf3aa01e69c0d62f37f2f88
- affected d503a04f8bc0c75dc9db9452d8cc79d748afb752 – < d4ba9d888ac0a8f12c78071fff73e1205a0b9293
- affected d503a04f8bc0c75dc9db9452d8cc79d748afb752 – < eb287c6e81dedef92da01eb947f380d0aae513c3
- affected d503a04f8bc0c75dc9db9452d8cc79d748afb752 – < 4bc49ae344d65cfcef738f281ac575cf73ca2fc5
- affected 6.10
- unaffected < 6.10
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.57 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/b14dabe9656c1029abf3aa01e69c0d62f37f2f88 (opens in a new tab)
- https://git.kernel.org/stable/c/d4ba9d888ac0a8f12c78071fff73e1205a0b9293 (opens in a new tab)
- https://git.kernel.org/stable/c/eb287c6e81dedef92da01eb947f380d0aae513c3 (opens in a new tab)
- https://git.kernel.org/stable/c/4bc49ae344d65cfcef738f281ac575cf73ca2fc5 (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-2026-81770 (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-2026-90177)Record last updated .