cbcvebase.
CVE-2022-49221
published 2025-02-26

CVE-2022-49221: In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: populate connector of struct dp_panel DP CTS test case 4.2.2.6 has valid edid…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.26%
18.0th percentile
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: populate connector of struct dp_panel DP CTS test case 4.2.2.6 has valid edid with bad checksum on purpose and expect DP source return correct checksum. During drm edid read, correct edid checksum is calculated and stored at connector::real_edid_checksum. The problem is struct dp_panel::connector never be assigned, instead the connector is stored in struct msm_dp::connector. When we run compliance testing test case 4.2.2.6 dp_panel_handle_sink_request() won't have a valid edid set in struct dp_panel::edid so we'll try to use the connectors real_edid_checksum and hit a NULL pointer dereference error because the connector pointer is never assigned. Changes in V2: -- populate panel connector at msm_dp_modeset_init() instead of at dp_panel_read_sink_caps() Changes in V3: -- remove unhelpful kernel crash trace commit text -- remove renaming dp_display parameter to dp Changes in V4: -- add more details to commit text Changes in v10: -- group into one series Changes in v11: -- drop drm/msm/dp: dp_link_parse_sink_count() return immediately if aux read Signee-off-by: Kuogee Hsieh

Affected

21 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.17.3-1 (bookworm)linux 5.17.3-1 (bookworm)
linuxlinux——
linuxlinux——
linuxlinux——
linuxlinux>= 5.10.67 < 5.10.1105.10.110
linuxlinux>= 5.13.19 < 5.145.14
linuxlinux>= 5.14.6 < 5.155.15
linuxlinux>= 7948fe12d47a946fb8025a0534c900e3dd4b5839 < 9525b8bcae8b99188990b56484799cf4b1b437869525b8bcae8b99188990b56484799cf4b1b43786
linuxlinux>= 7948fe12d47a946fb8025a0534c900e3dd4b5839 < fbba600f432a360b42452fee79d1fb35d3aa8aebfbba600f432a360b42452fee79d1fb35d3aa8aeb
linuxlinux>= 7948fe12d47a946fb8025a0534c900e3dd4b5839 < 104074ebc0c3f358dd1ee944fbcde92c6e5a21dd104074ebc0c3f358dd1ee944fbcde92c6e5a21dd
linuxlinux>= 7948fe12d47a946fb8025a0534c900e3dd4b5839 < 5e602f5156910c7b19661699896cb6e3fb94fab95e602f5156910c7b19661699896cb6e3fb94fab9
linuxlinux>= f86bc4a1a401d3691bad41e67f9db0c2ea94da32 < 413c62697b61226a236c8b1f5cd64dcf42bcc12f413c62697b61226a236c8b1f5cd64dcf42bcc12f
linuxlinux_kernel>= 0 < 5.10.113-15.10.113-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 5.10.67 < 5.10.1105.10.110
linuxlinux_kernel>= 5.13.19 < 5.145.14
linuxlinux_kernel>= 5.14.6 < 5.15.335.15.33
linuxlinux_kernel>= 5.16 < 5.16.195.16.19
linuxlinux_kernel>= 5.17 < 5.17.25.17.2

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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