{"id":"CVE-2026-45948","summary":"ext4: fix memory leak in ext4_ext_shift_extents()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix memory leak in ext4_ext_shift_extents()\n\nIn ext4_ext_shift_extents(), if the extent is NULL in the while loop, the\nfunction returns immediately without releasing the path obtained via\next4_find_extent(), leading to a memory leak.\n\nFix this by jumping to the out label to ensure the path is properly\nreleased.","modified":"2026-06-18T03:55:54.203443075Z","published":"2026-05-27T12:18:04.937Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45948.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aec"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45948.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45948"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a18ed359bdddcded4f97ff5e2f07793ff9336913"},{"fixed":"7e807cb8603b7664fa630a696cd891d9a03c248d"},{"fixed":"afc5e61e1a07b2b833bd72cbee36ecce9cd901e2"},{"fixed":"1bce219ee5512cf179ba40cf114945a14a16e21f"},{"fixed":"4a79fde8db7eba7f1128d971ceba4e3c9ac84aec"},{"fixed":"2f4b1052246ca646bb17bfe0f53df2fdf9729b58"},{"fixed":"12615ab4bfb69678e5d961b28bb70040299e51b1"},{"fixed":"bd7b52557e4a3ccd7595fdb3a585f1257de57935"},{"fixed":"ca81109d4a8f192dc1cbad4a1ee25246363c2833"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45948.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.15.0"},{"fixed":"5.10.252"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.202"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.165"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.14"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45948.json"}}],"schema_version":"1.7.5"}