block: fix q->blkg_list corruption during disk rebind (Linux Linux)

CVE-2024-35974
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.23 % · percentile 13 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: block: fix q->blkg_list corruption during disk rebind Multiple gendisk instances can allocated/added for single request queue in case of disk rebind. blkg may still stay in q->blkg_list when calling blkcg_init_disk() for rebind, then q->blkg_list becomes corrupted. Fix the list corruption issue by: - add blkg_init_queue() to initialize q->blkg_list & q->blkcg_mutex only - move calling blkg_init_queue() into blk_alloc_queue() The list corruption should be started since commit f1c006f1c685 ("blk-cgroup: synchronize pd_free_fn() from blkg_free_workfn() and blkcg_deactivate_policy()") which delays removing blkg from q->blkg_list into blkg_free_workfn().

References

Scores

VersionScoreVectorScored by
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)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 81c1188905f88b77743d1fdeeedfc8cb7b67787d < b5dae1cd0d8368b4338430ff93403df67f0b8bcc ; affected bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a < 083b58373463a6e5ee60ecb135269348f68ad7df ; affected 1059699f87eb0b3aa9d574b91a572d534897134a < 740ffad95ca8033bd6e080ed337655b13b4d38ac ; affected 1059699f87eb0b3aa9d574b91a572d534897134a < 858c489d81d659af17a4d11cfaad2afb42e47a76 ; affected 1059699f87eb0b3aa9d574b91a572d534897134a < 8b8ace080319a866f5dfe9da8e665ae51d971c54 ; affected 6.1.16 < 6.1.17
Linux · Linuxaffected 5.18 ; unaffected 0 < 5.18 ; unaffected 6.1.17 ≤ 6.1.* ; unaffected 6.2.4 ≤ 6.2.* ; unaffected 6.6.28 ≤ 6.6.* ; unaffected 6.8.7 ≤ 6.8.*

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