{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50750", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T13:02:21.544Z", "datePublished": "2025-12-24T13:05:45.447Z", "dateUpdated": "2026-08-05T08:59:38.061Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:59:38.061Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panel/panel-sitronix-st7701: Remove panel on DSI attach failure\n\nIn case mipi_dsi_attach() fails, call drm_panel_remove() to\navoid memory leak." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The bug is in the ST7701 MIPI-DSI panel probe path (st7701_dsi_probe → drm_panel_add → mipi_dsi_attach) and is subsequently hit via local DRM panel lookup (of_drm_find_panel walking panel_list); it is not reachable from network or adjacent-link packet processing.\nAC:L - mipi_dsi_attach commonly returns -EPROBE_DEFER/-EBUSY/-EINVAL on componentized DSI hosts (dw-mipi-dsi, Rockchip, MediaTek, sun6i), and on that failure path the dangling panel remains on panel_list while DEV_M frees st7701; a later of_drm_find_panel walk then deterministically uses the freed object with no attacker-uncontrollable race.\nPR:L - On realistic ST7701 deployments (e.g. Rockchip handhelds/HMI such as Odroid Go with sitronix,st7701), deferred-probe attach failure can establish the dangling panel_list entry at boot without privileges, and an unprivileged seat/video user can then trigger DRM connector/panel lookup; real init-namespace root is not required.\nUI:N - No separate victim action is required; boot-time probe deferral/failure plus the attacker’s own DRM modeset/connector probe ioctls drive the vulnerable path.\nS:U - Impact is confined to host-kernel heap corruption within the same OS security authority; this is not a VM escape, IOMMU/DMA bypass, or other cross-boundary compromise.\nC:H - Leaving &st7701->panel on the global panel_list after DEV_M frees st7701 is a reclaimable heap use-after-free; of_drm_find_panel reads panel->dev through that freed object, enabling arbitrary kernel read primitives via heap reuse.\nI:H - The same UAF lets an attacker reclaim and reshape the freed st7701/drm_panel object so later panel_list consumers act on attacker-controlled function pointers/state, enabling arbitrary write and control-flow hijacking.\nA:H - Dereferencing the dangling panel_list entry (panel->dev / panel ops) causes kernel oops/panic even without full exploitation, which is Availability High under kernel CVSS guidance for UAFs/crashes." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/panel/panel-sitronix-st7701.c" ], "versions": [ { "version": "849b2e3ff9698226ab91e034d52cbb1da92a5b4c", "lessThan": "0b7c47b7f358f932159a9d5beec9616ef8a0c6b4", "status": "affected", "versionType": "git" }, { "version": "849b2e3ff9698226ab91e034d52cbb1da92a5b4c", "lessThan": "576828e59a0e03bbc763872912b04f3e3a1b3311", "status": "affected", "versionType": "git" }, { "version": "849b2e3ff9698226ab91e034d52cbb1da92a5b4c", "lessThan": "13fc167e1645c43c631d7752d98e377f0e4cbb15", "status": "affected", "versionType": "git" }, { "version": "849b2e3ff9698226ab91e034d52cbb1da92a5b4c", "lessThan": "23fddf78eac8d79c56f93ab69b6c47a0816967c9", "status": "affected", "versionType": "git" }, { "version": "849b2e3ff9698226ab91e034d52cbb1da92a5b4c", "lessThan": "465611e812587e72bf235034edce0e51be3d6809", "status": "affected", "versionType": "git" }, { "version": "849b2e3ff9698226ab91e034d52cbb1da92a5b4c", "lessThan": "c62102165dd79284d42383d2f7ed17301bd8e629", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/panel/panel-sitronix-st7701.c" ], "versions": [ { "version": "5.1", "status": "affected" }, { "version": "0", "lessThan": "5.1", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.229", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.163", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.4.229" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.10.163" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.15.86" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.0.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.1.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/0b7c47b7f358f932159a9d5beec9616ef8a0c6b4" }, { "url": "https://git.kernel.org/stable/c/576828e59a0e03bbc763872912b04f3e3a1b3311" }, { "url": "https://git.kernel.org/stable/c/13fc167e1645c43c631d7752d98e377f0e4cbb15" }, { "url": "https://git.kernel.org/stable/c/23fddf78eac8d79c56f93ab69b6c47a0816967c9" }, { "url": "https://git.kernel.org/stable/c/465611e812587e72bf235034edce0e51be3d6809" }, { "url": "https://git.kernel.org/stable/c/c62102165dd79284d42383d2f7ed17301bd8e629" } ], "title": "drm/panel/panel-sitronix-st7701: Remove panel on DSI attach failure", "x_generator": { "engine": "bippy-1.2.0" } } } }