CVE-2023-52672
pipe: wakeup wr_wait after setting max_usage
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wr_wait after setting max_usage Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1]. The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write. Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue. [Christian Brauner <[email protected]>: rewrite to account for watch queues]
Timeline
ID reserved
By Linux
- 2 months later
· 2 months later
Published
- 24 months later
· 24 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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 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)
- 0.26% · top 83% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Weakness
Affected products
- affected c73be61cede5882f9605a852414db559c0ebedfd – < 162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8
- affected c73be61cede5882f9605a852414db559c0ebedfd – < 3efbd114b91525bb095b8ae046382197d92126b9
- affected c73be61cede5882f9605a852414db559c0ebedfd – < b87a1229d8668fbc78ebd9ca0fc797a76001c60f
- affected c73be61cede5882f9605a852414db559c0ebedfd – < 68e51bdb1194f11d3452525b99c98aff6f837b24
- affected c73be61cede5882f9605a852414db559c0ebedfd – < 6fb70694f8d1ac34e45246b0ac988f025e1e5b55
- affected c73be61cede5882f9605a852414db559c0ebedfd – < e95aada4cb93d42e25c30a0ef9eb2923d9711d4a
- affected 5.8
- unaffected < 5.8
- unaffected 5.10.210 – ≤ 5.10.*
- unaffected 5.15.149 – ≤ 5.15.*
- unaffected 6.1.76 – ≤ 6.1.*
- unaffected 6.6.15 – ≤ 6.6.*
- unaffected 6.7.3 – ≤ 6.7.*
- unaffected 6.8 – ≤ *
References (7)
- https://git.kernel.org/stable/c/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/b87a1229d8668fbc78ebd9ca0fc797a76001c60f (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/e95aada4cb93d42e25c30a0ef9eb2923d9711d4a (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html (opens in a new tab)x_transferred
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)
- 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://trackcve.app/cve/CVE-2023-52672)Record last updated .