{"id":"CVE-2022-49948","revision":"337790c28376488782992c2d4d8df233","records":[{"revision":"337790c28376488782992c2d4d8df233","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2022-49948","aliases":[],"title":"vt: Clear selection before changing the font","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvt: Clear selection before changing the font\n\nWhen changing the console font with ioctl(KDFONTOP) the new font size\ncan be bigger than the previous font. A previous selection may thus now\nbe outside of the new screen size and thus trigger out-of-bounds\naccesses to graphics memory if the selection is removed in\nvc_do_resize().\n\nPrevent such out-of-memory accesses by dropping the selection before the\nvarious con_font_set() console handlers are called.","state":0,"publishedAt":"2025-06-18T11:00:12.364+00:00","modifiedAt":"2026-10-15T21:31:17.598+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/tty/vt/vt.c\"\n ],\n \"versions\": [\n {\n \"version\": \"009e39ae44f4191188aeb6dfbf661b771dbbe515\",\n \"lessThan\": \"c555cf04684fde39b5b0dd9fd80730030ee10c4a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"009e39ae44f4191188aeb6dfbf661b771dbbe515\",\n \"lessThan\": \"e9ba4611ddf676194385506222cce7b0844e708e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"009e39ae44f4191188aeb6dfbf661b771dbbe515\",\n \"lessThan\": \"f74b4a41c5d7c9522469917e3072e55d435efd9e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"009e39ae44f4191188aeb6dfbf661b771dbbe515\",\n \"lessThan\": \"1cf1930369c9dc428d827b60260c53271bff3285\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"009e39ae44f4191188aeb6dfbf661b771dbbe515\",\n \"lessThan\": \"989201bb8c00b222235aff04e6200230d29dc7bb\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"009e39ae44f4191188aeb6dfbf661b771dbbe515\",\n \"lessThan\": \"2535431ae967ad17585513649625fea7db28d4db\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"009e39ae44f4191188aeb6dfbf661b771dbbe515\",\n \"lessThan\": \"c904fe03c4bd1f356a58797d39e2a5d0ca15cefc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"009e39ae44f4191188aeb6dfbf661b771dbbe515\",\n \"lessThan\": \"566f9c9f89337792070b5a6062dff448b3e7977f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e60f8fcce05042e8f8cea25ee81fecc1222114cf\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5812a9bc9d68a82c2cc839f88e6f7a05093ab39d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"863ad19fd654c485e3beec3575c4d74a1e74369e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"dbc3fd44f957a39407e889287bf61fa0ef3ecc14\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0b2a0a58ad22f9d6dfc641bc5ec46057493f22a5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9f2d48f0745f921040df91bfe8fa7f0339cd7497\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3425e397fb23cc2e8e6fb8f5b8226dcb447e84dd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"eeae0a12a16650ff494d5faefa371cd9e7079575\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3.2.85\",\n \"lessThan\": \"3.3\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"3.10.105\",\n \"lessThan\": \"3.11\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"3.12.68\",\n \"lessThan\": \"3.13\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"3.16.40\",\n \"lessThan\": \"3.17\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"3.18.45\",\n \"lessThan\": \"3.19\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.1.36\",\n \"lessThan\": \"4.2\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.4.31\",\n \"lessThan\": \"4.5\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.8.7\",\n \"lessThan\": \"4.9\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/tty/vt/vt.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.9\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.9\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.9.328\",\n \"lessThanOrEqual\": \"4.9.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.14.293\",\n \"lessThanOrEqual\": \"4.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.258\",\n \"lessThanOrEqual\": \"4.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.213\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.142\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.66\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.19.8\",\n \"lessThanOrEqual\": \"5.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.0\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/c555cf04684fde39b5b0dd9fd80730030ee10c4a","https://git.kernel.org/stable/c/e9ba4611ddf676194385506222cce7b0844e708e","https://git.kernel.org/stable/c/f74b4a41c5d7c9522469917e3072e55d435efd9e","https://git.kernel.org/stable/c/1cf1930369c9dc428d827b60260c53271bff3285","https://git.kernel.org/stable/c/989201bb8c00b222235aff04e6200230d29dc7bb","https://git.kernel.org/stable/c/2535431ae967ad17585513649625fea7db28d4db","https://git.kernel.org/stable/c/c904fe03c4bd1f356a58797d39e2a5d0ca15cefc","https://git.kernel.org/stable/c/566f9c9f89337792070b5a6062dff448b3e7977f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-49948","license":"CVE Program Terms of Use","key":"cve-program:CVE-2022-49948","identifiers":["CVE-2022-49948"]},"retained":false,"historicalAffected":[]}],"coverage":[]}