248 lines
13 KiB
JSON
248 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-99007",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-09-25T10:25:14.385Z",
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"datePublished": "2026-10-23T12:20:32.381Z",
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"dateUpdated": "2026-10-30T12:40:51.342Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-30T12:40:51.342Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/fb-helper: defer setup when fbdev_probe() fails, not just on -EAGAIN\n\n__drm_fb_helper_initial_config_and_unlock() calls\ndrm_client_modeset_probe() first, which already fills in each\nmode_set->mode/num_connectors for every connected output, and only\nafterwards calls drm_fb_helper_single_fb_probe() to create\nfb_helper->fb and wire it into those mode_sets via\ndrm_setup_crtcs_fb().\n\nIf drm_fb_helper_single_fb_probe() fails with anything other than\n-EAGAIN (e.g. dev->driver->fbdev_probe() itself fails), the function\nbails out before drm_setup_crtcs_fb() runs and before setting\nfb_helper->deferred_setup. The client is left with mode_sets that\nhave a mode and connectors but mode_set->fb == NULL, and nothing\nmarks this fb_helper as needing a retry.\n\n__drm_fb_helper_restore_fbdev_mode_unlocked() only skips committing\nwhen fb_helper->deferred_setup is set, so a later .restore() call\n(drm_lastclose() on process exit, in this report) commits the stale\nmode_set through drm_client_modeset_commit() ->\ndrm_client_modeset_commit_atomic() -> __drm_atomic_helper_set_config(),\nwhich hits WARN_ON(!set->fb).\n\nMark fb_helper->deferred_setup on any drm_fb_helper_single_fb_probe()\nfailure, not just -EAGAIN, so restore keeps skipping the commit until\na later hotplug event successfully re-probes and re-populates\nmode_set->fb. The real error code is still returned to the caller\nunchanged."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/drm_fb_helper.c"
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],
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"versions": [
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{
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"version": "ca91a2758fcef6635626993557dd51cfbb6dd134",
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"lessThan": "423c871a586cff8b29f48db00e3c45c21d0e8121",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ca91a2758fcef6635626993557dd51cfbb6dd134",
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"lessThan": "e5f8f6e0f0a18c77c04b757d72319d897a0b4bc1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ca91a2758fcef6635626993557dd51cfbb6dd134",
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"lessThan": "9124411cb91b129ff3ffb0d723ecba7a5bf893f9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ca91a2758fcef6635626993557dd51cfbb6dd134",
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"lessThan": "4a2006c675758f0c765b36fec6b49d17e89159cf",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ca91a2758fcef6635626993557dd51cfbb6dd134",
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"lessThan": "3b303696f61461b3569019d7fcac6a646652b2b4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ca91a2758fcef6635626993557dd51cfbb6dd134",
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"lessThan": "4e7b508c7c60dec7a86b7eb2a1b7e6d174afa457",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ca91a2758fcef6635626993557dd51cfbb6dd134",
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"lessThan": "d510ed273854177f0a3ed330145858b2fe667f81",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ca91a2758fcef6635626993557dd51cfbb6dd134",
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"lessThan": "755c94d178b7e972bb766199d34e4ba4f63a89eb",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/drm_fb_helper.c"
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],
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"versions": [
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{
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"version": "4.14",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.14",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.273",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.224",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.191",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.160",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.113",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.57",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.11",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.14",
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"versionEndExcluding": "5.10.273"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.14",
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"versionEndExcluding": "5.15.224"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.14",
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"versionEndExcluding": "6.1.191"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.14",
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"versionEndExcluding": "6.6.160"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.14",
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"versionEndExcluding": "6.12.113"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.14",
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"versionEndExcluding": "6.18.57"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.14",
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"versionEndExcluding": "7.2.11"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.14",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/423c871a586cff8b29f48db00e3c45c21d0e8121"
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},
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{
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"url": "https://git.kernel.org/stable/c/e5f8f6e0f0a18c77c04b757d72319d897a0b4bc1"
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},
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{
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"url": "https://git.kernel.org/stable/c/9124411cb91b129ff3ffb0d723ecba7a5bf893f9"
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},
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{
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"url": "https://git.kernel.org/stable/c/4a2006c675758f0c765b36fec6b49d17e89159cf"
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},
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{
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"url": "https://git.kernel.org/stable/c/3b303696f61461b3569019d7fcac6a646652b2b4"
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},
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{
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"url": "https://git.kernel.org/stable/c/4e7b508c7c60dec7a86b7eb2a1b7e6d174afa457"
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},
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{
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"url": "https://git.kernel.org/stable/c/d510ed273854177f0a3ed330145858b2fe667f81"
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},
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{
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"url": "https://git.kernel.org/stable/c/755c94d178b7e972bb766199d34e4ba4f63a89eb"
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}
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],
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"title": "drm/fb-helper: defer setup when fbdev_probe() fails, not just on -EAGAIN",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |