net: sched: fix use-after-free in taprio_change() (Linux Linux)

CVE-2024-50127
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.25 % · percentile 16 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix use-after-free in taprio_change() In 'taprio_change()', 'admin' pointer may become dangling due to sched switch / removal caused by 'advance_sched()', and critical section protected by 'q->current_entry_lock' is too small to prevent from such a scenario (which causes use-after-free detected by KASAN). Fix this by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update 'admin' immediately before an attempt to schedule freeing.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCISA-ADP
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/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 a3d43c0d56f1b94e74963a2fbadfb70126d92213 < 2f868ce6013548a713c431c679ef73747a66fcf3 ; affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 < 8a283a19026aaae8a773fd8061263cfa315b127f ; affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 < 999612996df28d81f163dad530d7f8026e03aec6 ; affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 < fe371f084073e8672a2d7d46b335c3c060d1e301 ; affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 < 0d4c0d2844e4eac3aed647f948fd7e60eea56a61 ; affected a3d43c0d56f1b94e74963a2fbadfb70126d92213 < 2240f9376f20f8b6463232b4ca7292569217237f
Linux · Linuxaffected 5.2 ; unaffected 0 < 5.2 ; unaffected 5.4.285 ≤ 5.4.* ; unaffected 5.10.229 ≤ 5.10.* ; unaffected 5.15.170 ≤ 5.15.* ; unaffected 6.1.115 ≤ 6.1.*

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