{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90175","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.791Z","datePublished":"2026-09-17T16:07:01.769Z","dateUpdated":"2026-09-17T16:07:01.769Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:07:01.769Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer\n\nFree it unconditionally after ksmbd_alloc_user() calls.\n\nkmemleak splat:\n  unreferenced object 0xffff888103b83540 (size 192):\n    comm \"pool-0\", pid 16970, jiffies 4377290937\n    hex dump (first 32 bytes):\n      00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00  ................\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    backtrace (crc 408ccc66):\n      __kvmalloc_node_noprof+0x730/0x920\n      handle_generic_event+0xec/0x1a0 [ksmbd]\n      genl_family_rcv_msg_doit+0xe0/0x130\n      genl_rcv_msg+0x181/0x290\n      netlink_rcv_skb+0x4f/0x100\n      genl_rcv+0x28/0x40\n      netlink_unicast+0x1e6/0x2c0\n      netlink_sendmsg+0x20a/0x450\n      ____sys_sendmsg+0x2e8/0x310\n      ___sys_sendmsg+0x78/0xc0\n      __sys_sendmsg+0x63/0xc0\n      do_syscall_64+0xa1/0x670\n      entry_SYSCALL_64_after_hwframe+0x76/0x7e"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/auth.c","fs/smb/server/mgmt/user_config.c"],"versions":[{"version":"8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320","lessThan":"4d6fe49fa3e7fbd779c761518e6572e340233c9b","status":"affected","versionType":"git"},{"version":"a77e0e02af1c2db5fc040511aa78a58a52e116ab","lessThan":"c9f2872e91b9fe99c1d0ba768906f7aeb48c8517","status":"affected","versionType":"git"},{"version":"a77e0e02af1c2db5fc040511aa78a58a52e116ab","lessThan":"7a98c3b903b10c4d6176948254012b5ca24b071b","status":"affected","versionType":"git"},{"version":"a77e0e02af1c2db5fc040511aa78a58a52e116ab","lessThan":"abb5146b2d8197d695ea9eaa0847c73e34f00985","status":"affected","versionType":"git"},{"version":"a77e0e02af1c2db5fc040511aa78a58a52e116ab","lessThan":"1c3ebf832d010c08afe1359215d4121cb1ed2de5","status":"affected","versionType":"git"},{"version":"6.6.141","lessThan":"6.6.157","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/auth.c","fs/smb/server/mgmt/user_config.c"],"versions":[{"version":"6.12","status":"affected"},{"version":"0","lessThan":"6.12","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.141","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/4d6fe49fa3e7fbd779c761518e6572e340233c9b"},{"url":"https://git.kernel.org/stable/c/c9f2872e91b9fe99c1d0ba768906f7aeb48c8517"},{"url":"https://git.kernel.org/stable/c/7a98c3b903b10c4d6176948254012b5ca24b071b"},{"url":"https://git.kernel.org/stable/c/abb5146b2d8197d695ea9eaa0847c73e34f00985"},{"url":"https://git.kernel.org/stable/c/1c3ebf832d010c08afe1359215d4121cb1ed2de5"}],"title":"smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer","x_generator":{"engine":"bippy-1.2.0"}}}}