{"id":"CVE-2026-68144","revision":null,"records":[{"revision":"880c86fabd2040e4b4ec2cd04de64ab9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68144","aliases":[],"title":"phonet: pep: fix use-after-free in pep_get_sb()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nphonet: pep: fix use-after-free in pep_get_sb()\n\npep_get_sb() doesn't consider that pskb_may_pull() might have relocated\nthe skb data, and continue to access the older pointer, causing UAF.\n\nReproduced under KASAN:\n\n BUG: KASAN: slab-use-after-free in pep_get_sb+0x234/0x3b0\n Read of size 1 at addr ff11000105510f50 by task repro/157\n pep_get_sb+0x234/0x3b0\n pipe_handler_do_rcv+0x5f7/0xa10\n pep_do_rcv+0x203/0x410\n __sk_receive_skb+0x471/0x4a0\n phonet_rcv+0x5b3/0x6c0\n __netif_receive_skb+0xcc/0x1d0\n\nRefetch the header with skb_header_pointer() after pskb_may_pull(), so\nthe possibly stale pointer is no longer dereferenced. There are better\nways to solve this, but, this is the less instrusive one.","state":0,"publishedAt":"2026-08-10T11:59:08.437+00:00","modifiedAt":"2026-10-19T20:58:53.73+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 \"net/phonet/pep.c\"\n ],\n \"versions\": [\n {\n \"version\": \"9641458d3ec42def729fde64669abf07f3220cd5\",\n \"lessThan\": \"c4a52cb4da8d57d060b1d52085d25147a238dac2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9641458d3ec42def729fde64669abf07f3220cd5\",\n \"lessThan\": \"df198743859fefba2f824115f8151dd62d7ad6d8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9641458d3ec42def729fde64669abf07f3220cd5\",\n \"lessThan\": \"1d81e19fc57a5ee55b4497d01bc0510d76fb9578\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9641458d3ec42def729fde64669abf07f3220cd5\",\n \"lessThan\": \"8d931a75a38b9bb584a4071f5ebbd52755fc35ee\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9641458d3ec42def729fde64669abf07f3220cd5\",\n \"lessThan\": \"17f78c0c0d41d738ee236eb6e841e39395188054\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9641458d3ec42def729fde64669abf07f3220cd5\",\n \"lessThan\": \"a48a889b60f73edb0399a8b08284a2ab0bd0295f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9641458d3ec42def729fde64669abf07f3220cd5\",\n \"lessThan\": \"25e3641beb51333bfbb155af2fd2573a61113af2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9641458d3ec42def729fde64669abf07f3220cd5\",\n \"lessThan\": \"0f71f852a96af9685858ce59fda34ecbf85c283d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\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 \"net/phonet/pep.c\"\n ],\n \"versions\": [\n {\n \"version\": \"2.6.28\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"2.6.28\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.265\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.216\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.183\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.148\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.101\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.42\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.6\",\n \"lessThanOrEqual\": \"7.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/c4a52cb4da8d57d060b1d52085d25147a238dac2","https://git.kernel.org/stable/c/df198743859fefba2f824115f8151dd62d7ad6d8","https://git.kernel.org/stable/c/1d81e19fc57a5ee55b4497d01bc0510d76fb9578","https://git.kernel.org/stable/c/8d931a75a38b9bb584a4071f5ebbd52755fc35ee","https://git.kernel.org/stable/c/17f78c0c0d41d738ee236eb6e841e39395188054","https://git.kernel.org/stable/c/a48a889b60f73edb0399a8b08284a2ab0bd0295f","https://git.kernel.org/stable/c/25e3641beb51333bfbb155af2fd2573a61113af2","https://git.kernel.org/stable/c/0f71f852a96af9685858ce59fda34ecbf85c283d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68144","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68144","identifiers":["CVE-2026-68144"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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