OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized (Linux Linux)

CVE-2024-58068
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.19 % · percentile 9 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized If a driver calls dev_pm_opp_find_bw_ceil/floor() the retrieve bandwidth from the OPP table but the bandwidth table was not created because the interconnect properties were missing in the OPP consumer node, the kernel will crash with: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 ... pc : _read_bw+0x8/0x10 lr : _opp_table_find_key+0x9c/0x174 ... Call trace: _read_bw+0x8/0x10 (P) _opp_table_find_key+0x9c/0x174 (L) _find_key+0x98/0x168 dev_pm_opp_find_bw_ceil+0x50/0x88 ... In order to fix the crash, create an assert function to check if the bandwidth table was created before trying to get a bandwidth with _read_bw().

Weaknesses (CWE)

  • CWE-476 — NULL Pointer Dereference

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: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 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected add1dc094a7456d3c56782b7478940b6a550c7ed < 8532fd078d2a5286915d03bb0a0893ee1955acef ; affected add1dc094a7456d3c56782b7478940b6a550c7ed < 84ff05c9bd577157baed711a4f0b41206593978b ; affected add1dc094a7456d3c56782b7478940b6a550c7ed < ff2def251849133be6076a7c2d427d8eb963c223 ; affected add1dc094a7456d3c56782b7478940b6a550c7ed < 5165486681dbd67b61b975c63125f2a5cb7f96d1 ; affected add1dc094a7456d3c56782b7478940b6a550c7ed < b44b9bc7cab2967c3d6a791b1cd542c89fc07f0e
Linux · Linuxaffected 6.0 ; unaffected 0 < 6.0 ; unaffected 6.1.129 ≤ 6.1.* ; unaffected 6.6.76 ≤ 6.6.* ; unaffected 6.12.13 ≤ 6.12.* ; unaffected 6.13.2 ≤ 6.13.*

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