drm/meson: fix shutdown crash when component not probed (Linux Linux)

CVE-2021-47165
MEDIUM 5.5

At a glance

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

Description

In the Linux kernel, the following vulnerability has been resolved: drm/meson: fix shutdown crash when component not probed When main component is not probed, by example when the dw-hdmi module is not loaded yet or in probe defer, the following crash appears on shutdown: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000038 ... pc : meson_drv_shutdown+0x24/0x50 lr : platform_drv_shutdown+0x20/0x30 ... Call trace: meson_drv_shutdown+0x24/0x50 platform_drv_shutdown+0x20/0x30 device_shutdown+0x158/0x360 kernel_restart_prepare+0x38/0x48 kernel_restart+0x18/0x68 __do_sys_reboot+0x224/0x250 __arm64_sys_reboot+0x24/0x30 ... Simply check if the priv struct has been allocated before using it.

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 8a5160cc8488776ddc48ea045860dab015f47390 < b4298d33c1fcce511ffe84d8d3de07e220300f9b ; affected 8fbbf2b3849419e31731902d7478b0c934732632 < e256a0eb43e17209e347409a80805b1659398d68 ; affected d2100ef32a8cfd024bad94f4fbc5e53d40d2b3da < 4ce2bf20b4a6e307e114847d60b2bf40a6a1fac0 ; affected d4ec1ffbdaa8939a208656e9c1440742c457ef16 < d66083c0d6f5125a4d982aa177dd71ab4cd3d212 ; affected fa0c16caf3d73ab4d2e5d6fa2ef2394dbec91791 < b4b91033a0b11fe9ade58156cd9168f89f4a8c1a ; affected fa0c16caf3d73ab4d2e5d6fa2ef2394dbec91791 < 7cfc4ea78fc103ea51ecbacd9236abb5b1c490d2
Linux · Linuxaffected 5.12 ; unaffected 0 < 5.12 ; unaffected 4.14.235 ≤ 4.14.* ; unaffected 4.19.193 ≤ 4.19.* ; unaffected 5.4.124 ≤ 5.4.* ; unaffected 5.10.42 ≤ 5.10.*

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