pipe: wakeup wr_wait after setting max_usage (Linux Linux)

CVE-2023-52672
HIGH 7.0

At a glance

Source
NVD
EPSS
EPSS 0.26 % · percentile 17 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

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 <brauner@kernel.org>: rewrite to account for watch queues]

Weaknesses (CWE)

  • CWE-400 — Uncontrolled Resource Consumption

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HCISA-ADP
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected c73be61cede5882f9605a852414db559c0ebedfd < 162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8 ; affected c73be61cede5882f9605a852414db559c0ebedfd < 3efbd114b91525bb095b8ae046382197d92126b9 ; affected c73be61cede5882f9605a852414db559c0ebedfd < b87a1229d8668fbc78ebd9ca0fc797a76001c60f ; affected c73be61cede5882f9605a852414db559c0ebedfd < 68e51bdb1194f11d3452525b99c98aff6f837b24 ; affected c73be61cede5882f9605a852414db559c0ebedfd < 6fb70694f8d1ac34e45246b0ac988f025e1e5b55 ; affected c73be61cede5882f9605a852414db559c0ebedfd < e95aada4cb93d42e25c30a0ef9eb2923d9711d4a
Linux · Linuxaffected 5.8 ; unaffected 0 < 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.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD