drm/amd/display: Add NULL check for clk_mgr and clk_mgr->funcs in dcn30_init_hw (Linux Linux)

CVE-2024-49917
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.24 % · percentile 15 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add NULL check for clk_mgr and clk_mgr->funcs in dcn30_init_hw This commit addresses a potential null pointer dereference issue in the `dcn30_init_hw` function. The issue could occur when `dc->clk_mgr` or `dc->clk_mgr->funcs` is null. The fix adds a check to ensure `dc->clk_mgr` and `dc->clk_mgr->funcs` is not null before accessing its functions. This prevents a potential null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:789 dcn30_init_hw() error: we previously assumed 'dc->clk_mgr' could be null (see line 628)

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:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 23cb6139543580dc36743586ca86fbb3f7ab2c9d ; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 205e3b96cc9aa9211fd2c849a16245cf236b2d36 ; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 5443c83eb8fd2f88c71ced38848fbf744d6206a2 ; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 56c326577971adc3a230f29dfd3aa3abdd505f5d ; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < cba7fec864172dadd953daefdd26e01742b71a6a
Linux · Linuxaffected 4.15 ; unaffected 0 < 4.15 ; unaffected 6.1.120 ≤ 6.1.* ; unaffected 6.6.64 ≤ 6.6.* ; unaffected 6.10.14 ≤ 6.10.* ; unaffected 6.11.3 ≤ 6.11.*

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