{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74608", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.920Z", "datePublished": "2026-08-22T15:31:55.298Z", "dateUpdated": "2026-08-22T15:31:55.298Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-22T15:31:55.298Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Fix use-after-free in cifs_try_adding_channels()\n\ncifs_try_adding_channels() takes a temporary reference to an interface\nbefore dropping iface_lock. If cifs_ses_add_channel() fails, it drops\nthat reference and then increments iface->weight_fulfilled.\n\nA concurrent interface list refresh can remove the list reference while\nchannel creation is in progress. In that case, the failure-path\nkref_put() releases the last reference and frees iface. Updating\nweight_fulfilled afterward then accesses freed memory.\n\nIncrement weight_fulfilled before dropping the temporary reference,\nkeeping iface alive for the final access."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/sess.c"], "versions": [{"version": "cbc53148cc0946b72d62a3c53870cb22ce4ec284", "lessThan": "64d7584e62ac8cdc750455c5fdc6008fc2de4f06", "status": "affected", "versionType": "git"}, {"version": "cff97d683a083b862a8bb24309e0f4d2d928128a", "lessThan": "c292d4686f717c03e5022fc4ae7c782f39a94915", "status": "affected", "versionType": "git"}, {"version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0", "lessThan": "47dfac48bce7198ad4f1a388fc8c9491f878ac3b", "status": "affected", "versionType": "git"}, {"version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0", "lessThan": "1ffacbadc14530e55b8d86f7b917524f6a0fb891", "status": "affected", "versionType": "git"}, {"version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0", "lessThan": "1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805", "status": "affected", "versionType": "git"}, {"version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0", "lessThan": "4986410316b1ae0e63c6ce418e4eb196723626e7", "status": "affected", "versionType": "git"}, {"version": "22a6c5b3425f327e7f4c3606a72277dce82c7d83", "status": "affected", "versionType": "git"}, {"version": "6.1.78", "lessThan": "6.1.183", "status": "affected", "versionType": "semver"}, {"version": "6.6.17", "lessThan": "6.6.152", "status": "affected", "versionType": "semver"}, {"version": "6.7.5", "lessThan": "6.8", "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/client/sess.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.152", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.104", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.45", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.9", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.1.78", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.17", "versionEndExcluding": "6.6.152"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.12.104"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.45"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/64d7584e62ac8cdc750455c5fdc6008fc2de4f06"}, {"url": "https://git.kernel.org/stable/c/c292d4686f717c03e5022fc4ae7c782f39a94915"}, {"url": "https://git.kernel.org/stable/c/47dfac48bce7198ad4f1a388fc8c9491f878ac3b"}, {"url": "https://git.kernel.org/stable/c/1ffacbadc14530e55b8d86f7b917524f6a0fb891"}, {"url": "https://git.kernel.org/stable/c/1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805"}, {"url": "https://git.kernel.org/stable/c/4986410316b1ae0e63c6ce418e4eb196723626e7"}], "title": "smb: client: Fix use-after-free in cifs_try_adding_channels()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/smb/client/sess.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "64d7584e62ac8cdc750455c5fdc6008fc2de4f06", "status": "affected", "version": "cbc53148cc0946b72d62a3c53870cb22ce4ec284", "versionType": "git"}, {"lessThan": "c292d4686f717c03e5022fc4ae7c782f39a94915", "status": "affected", "version": "cff97d683a083b862a8bb24309e0f4d2d928128a", "versionType": "git"}, {"lessThan": "47dfac48bce7198ad4f1a388fc8c9491f878ac3b", "status": "affected", "version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0", "versionType": "git"}, {"lessThan": "1ffacbadc14530e55b8d86f7b917524f6a0fb891", "status": "affected", "version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0", "versionType": "git"}, {"lessThan": "1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805", "status": "affected", "version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0", "versionType": "git"}, {"lessThan": "4986410316b1ae0e63c6ce418e4eb196723626e7", "status": "affected", "version": "6aac002bcfd554aff6d3ebb55e1660d078d70ab0", "versionType": "git"}, {"status": "affected", "version": "22a6c5b3425f327e7f4c3606a72277dce82c7d83", "versionType": "git"}, {"lessThan": "6.1.183", "status": "affected", "version": "6.1.78", "versionType": "semver"}, {"lessThan": "6.6.152", "status": "affected", "version": "6.6.17", "versionType": "semver"}, {"lessThan": "6.8", "status": "affected", "version": "6.7.5", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/smb/client/sess.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"lessThan": "6.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.152", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.104", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.45", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Fix use-after-free in cifs_try_adding_channels()\n\ncifs_try_adding_channels() takes a temporary reference to an interface\nbefore dropping iface_lock. If cifs_ses_add_channel() fails, it drops\nthat reference and then increments iface->weight_fulfilled.\n\nA concurrent interface list refresh can remove the list reference while\nchannel creation is in progress. In that case, the failure-path\nkref_put() releases the last reference and frees iface. Updating\nweight_fulfilled afterward then accesses freed memory.\n\nIncrement weight_fulfilled before dropping the temporary reference,\nkeeping iface alive for the final access."}], "id": "CVE-2026-74608", "lastModified": "2026-08-22T16:16:33.290", "metrics": {}, "published": "2026-08-22T16:16:33.290", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1ffacbadc14530e55b8d86f7b917524f6a0fb891"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/47dfac48bce7198ad4f1a388fc8c9491f878ac3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4986410316b1ae0e63c6ce418e4eb196723626e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/64d7584e62ac8cdc750455c5fdc6008fc2de4f06"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c292d4686f717c03e5022fc4ae7c782f39a94915"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cbc53148cc0946b72d62a3c53870cb22ce4ec284,64d7584e62ac8cdc750455c5fdc6008fc2de4f06)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cff97d683a083b862a8bb24309e0f4d2d928128a,c292d4686f717c03e5022fc4ae7c782f39a94915)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6aac002bcfd554aff6d3ebb55e1660d078d70ab0,47dfac48bce7198ad4f1a388fc8c9491f878ac3b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6aac002bcfd554aff6d3ebb55e1660d078d70ab0,1ffacbadc14530e55b8d86f7b917524f6a0fb891)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6aac002bcfd554aff6d3ebb55e1660d078d70ab0,1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6aac002bcfd554aff6d3ebb55e1660d078d70ab0,4986410316b1ae0e63c6ce418e4eb196723626e7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "22a6c5b3425f327e7f4c3606a72277dce82c7d83"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.1.78,6.1.183)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.17,6.6.152)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.7.5,6.8)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.183,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.152,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.104,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.45,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.9,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-22T17:00:10.933040+00:00", "updated": "2026-08-22T17:45:02.782707+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}