{"id":"CVE-2022-49938","state":"PUBLISHED","title":"cifs: fix small mempool leak in SMB2_negotiate()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix small mempool leak in SMB2_negotiate()\n\nIn some cases of failure (dialect mismatches) in SMB2_negotiate(), after\nthe request is sent, the checks would return -EIO when they should be\nrather setting rc = -EIO and jumping to neg_exit to free the response\nbuffer from mempool.","publishedAt":"2025-06-18T10:54:39.458Z","updatedAt":"2026-05-23T15:23:18.671Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9764c02fcbad40001fd3f63558d918e4d519bb75","status":"affected","lessThan":"9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0","versionType":"git"},{"version":"9764c02fcbad40001fd3f63558d918e4d519bb75","status":"affected","lessThan":"38a6b469bf22f153282fbe7d702a24e9eb43f50e","versionType":"git"},{"version":"9764c02fcbad40001fd3f63558d918e4d519bb75","status":"affected","lessThan":"27893dfc1285f80f80f46b3b8c95f5d15d2e66d0","versionType":"git"},{"version":"1ae6f05d4204d3a128bb9ba2c42e2a6c4ac687f1","status":"affected","versionType":"git"},{"version":"4.13.5","status":"affected","lessThan":"4.14","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/cifs/smb2pdu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.14","versionType":"semver"},{"version":"5.15.66","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.8","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/cifs/smb2pdu.c"]}],"references":["https://git.kernel.org/stable/c/9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0","https://git.kernel.org/stable/c/38a6b469bf22f153282fbe7d702a24e9eb43f50e","https://git.kernel.org/stable/c/27893dfc1285f80f80f46b3b8c95f5d15d2e66d0"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49938.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49938","state":"PUBLISHED","datePublished":"2025-06-18T10:54:39.458Z","dateUpdated":"2026-05-23T15:23:18.671Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-01T14:05:17.255Z"},"containers":{"cna":{"title":"cifs: fix small mempool leak in SMB2_negotiate()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix small mempool leak in SMB2_negotiate()\n\nIn some cases of failure (dialect mismatches) in SMB2_negotiate(), after\nthe request is sent, the checks would return -EIO when they should be\nrather setting rc = -EIO and jumping to neg_exit to free the response\nbuffer from mempool."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9764c02fcbad40001fd3f63558d918e4d519bb75","status":"affected","lessThan":"9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0","versionType":"git"},{"version":"9764c02fcbad40001fd3f63558d918e4d519bb75","status":"affected","lessThan":"38a6b469bf22f153282fbe7d702a24e9eb43f50e","versionType":"git"},{"version":"9764c02fcbad40001fd3f63558d918e4d519bb75","status":"affected","lessThan":"27893dfc1285f80f80f46b3b8c95f5d15d2e66d0","versionType":"git"},{"version":"1ae6f05d4204d3a128bb9ba2c42e2a6c4ac687f1","status":"affected","versionType":"git"},{"version":"4.13.5","status":"affected","lessThan":"4.14","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/cifs/smb2pdu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.14","versionType":"semver"},{"version":"5.15.66","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.8","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/cifs/smb2pdu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0"},{"url":"https://git.kernel.org/stable/c/38a6b469bf22f153282fbe7d702a24e9eb43f50e"},{"url":"https://git.kernel.org/stable/c/27893dfc1285f80f80f46b3b8c95f5d15d2e66d0"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:23:18.671Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.15.66"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.19.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13.5"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}