{"id":"CVE-2026-31608","summary":"smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()\n\nsmb_direct_flush_send_list() already calls smb_direct_free_sendmsg(),\nso we should not call it again after post_sendmsg()\nmoved it to the batch list.","modified":"2026-05-18T05:59:51.937234819Z","published":"2026-04-24T14:42:30.137Z","related":["CGA-w2fm-mfcc-5r46","openSUSE-SU-2026:10703-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31608.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25"},{"type":"WEB","url":"https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032"},{"type":"WEB","url":"https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31608.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31608"},{"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":"5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7"},{"fixed":"6968c91fab05b8fc4d6700e0cf34472bb422df25"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"79242e7b6bc63efec28b7c235bc320806afce6c0"},{"fixed":"2ba03f46132b0d1a7bafb86e1ef61951a2254023"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"34abd408c8ba24d7c97bd02ba874d8c714f49db1"},{"fixed":"830de6eeb9db4cb7e758201fb99328ef4ca4b032"},{"fixed":"84ff995ae826aa6bbcc6c7b9ea569ff67c021d72"}]}],"versions":["v6.18.23","v6.18.22","v6.18.21","v6.18.20","v6.18.19","v6.18.18","v6.18.17","v6.18.16","v6.18.15","v6.18.14","v6.18.13","v6.18.12","v6.18.11","v6.19.13","v6.19.12","v6.19.11","v6.19.10","v6.19.9","v6.19.8","v6.19.7","v6.19.6","v6.19.5","v6.19.4","v6.19.3","v6.19.2","v6.19.1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31608.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.18.24"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.14"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.20.0"},{"fixed":"7.0.1"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31608.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}