{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68295", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T14:48:05.293Z", "datePublished": "2025-12-16T15:06:14.977Z", "dateUpdated": "2026-05-23T16:02:33.913Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T16:02:33.913Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix memory leak in cifs_construct_tcon()\n\nWhen having a multiuser mount with domain= specified and using\ncifscreds, cifs_set_cifscreds() will end up setting @ctx->domainname,\nso it needs to be freed before leaving cifs_construct_tcon().\n\nThis fixes the following memory leak reported by kmemleak:\n\n mount.cifs //srv/share /mnt -o domain=ZELDA,multiuser,...\n su - testuser\n cifscreds add -d ZELDA -u testuser\n ...\n ls /mnt/1\n ...\n umount /mnt\n echo scan > /sys/kernel/debug/kmemleak\n cat /sys/kernel/debug/kmemleak\n unreferenced object 0xffff8881203c3f08 (size 8):\n comm \"ls\", pid 5060, jiffies 4307222943\n hex dump (first 8 bytes):\n 5a 45 4c 44 41 00 cc cc ZELDA...\n backtrace (crc d109a8cf):\n __kmalloc_node_track_caller_noprof+0x572/0x710\n kstrdup+0x3a/0x70\n cifs_sb_tlink+0x1209/0x1770 [cifs]\n cifs_get_fattr+0xe1/0xf50 [cifs]\n cifs_get_inode_info+0xb5/0x240 [cifs]\n cifs_revalidate_dentry_attr+0x2d1/0x470 [cifs]\n cifs_getattr+0x28e/0x450 [cifs]\n vfs_getattr_nosec+0x126/0x180\n vfs_statx+0xf6/0x220\n do_statx+0xab/0x110\n __x64_sys_statx+0xd5/0x130\n do_syscall_64+0xbb/0x380\n entry_SYSCALL_64_after_hwframe+0x77/0x7f"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/connect.c"], "versions": [{"version": "f2aee329a68f5a907bcff11a109dfe17c0b41aeb", "lessThan": "ff8f9bd1c46ee02d5558293915d42e82646d5ee9", "status": "affected", "versionType": "git"}, {"version": "f2aee329a68f5a907bcff11a109dfe17c0b41aeb", "lessThan": "d146e96fef876492979658dce644305de35878d4", "status": "affected", "versionType": "git"}, {"version": "f2aee329a68f5a907bcff11a109dfe17c0b41aeb", "lessThan": "3dd546e867e94c2f954bca45a961b6104ba708b6", "status": "affected", "versionType": "git"}, {"version": "f2aee329a68f5a907bcff11a109dfe17c0b41aeb", "lessThan": "f62ffdfb431bdfa4b6d24233b7fd830eca0b801e", "status": "affected", "versionType": "git"}, {"version": "f2aee329a68f5a907bcff11a109dfe17c0b41aeb", "lessThan": "f15288c137d960836277d0e3ecc62de68e52f00f", "status": "affected", "versionType": "git"}, {"version": "f2aee329a68f5a907bcff11a109dfe17c0b41aeb", "lessThan": "a67e91d5f446e455dd9201cdd6e865f7078d251d", "status": "affected", "versionType": "git"}, {"version": "f2aee329a68f5a907bcff11a109dfe17c0b41aeb", "lessThan": "3184b6a5a24ec9ee74087b2a550476f386df7dc2", "status": "affected", "versionType": "git"}, {"version": "1456d3cea31114137fabf1110d20a2e2c6d6060f", "status": "affected", "versionType": "git"}, {"version": "16764d7486d02b1699ae16e91d7a577602398b17", "status": "affected", "versionType": "git"}, {"version": "904847402bd74a28164bd4d8da082d1eace7c190", "status": "affected", "versionType": "git"}, {"version": "325fa2a6729b74b2806b31725940cb54658515e5", "status": "affected", "versionType": "git"}, {"version": "8db988a982908b7bff76e095000adabf9c29698b", "status": "affected", "versionType": "git"}, {"version": "4.4.194", "lessThan": "4.5", "status": "affected", "versionType": "semver"}, {"version": "4.9.194", "lessThan": "4.10", "status": "affected", "versionType": "semver"}, {"version": "4.14.146", "lessThan": "4.15", "status": "affected", "versionType": "semver"}, {"version": "4.19.75", "lessThan": "4.20", "status": "affected", "versionType": "semver"}, {"version": "5.2.17", "lessThan": "5.3", "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/connect.c"], "versions": [{"version": "5.3", "status": "affected"}, {"version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.247", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.197", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.159", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.119", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.61", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.11", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18", "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": "5.3", "versionEndExcluding": "5.10.247"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15.197"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.1.159"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.6.119"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12.61"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.17.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.18"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.194"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.194"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.146"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ff8f9bd1c46ee02d5558293915d42e82646d5ee9"}, {"url": "https://git.kernel.org/stable/c/d146e96fef876492979658dce644305de35878d4"}, {"url": "https://git.kernel.org/stable/c/3dd546e867e94c2f954bca45a961b6104ba708b6"}, {"url": "https://git.kernel.org/stable/c/f62ffdfb431bdfa4b6d24233b7fd830eca0b801e"}, {"url": "https://git.kernel.org/stable/c/f15288c137d960836277d0e3ecc62de68e52f00f"}, {"url": "https://git.kernel.org/stable/c/a67e91d5f446e455dd9201cdd6e865f7078d251d"}, {"url": "https://git.kernel.org/stable/c/3184b6a5a24ec9ee74087b2a550476f386df7dc2"}], "title": "smb: client: fix memory leak in cifs_construct_tcon()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix memory leak in cifs_construct_tcon()\n\nWhen having a multiuser mount with domain= specified and using\ncifscreds, cifs_set_cifscreds() will end up setting @ctx->domainname,\nso it needs to be freed before leaving cifs_construct_tcon().\n\nThis fixes the following memory leak reported by kmemleak:\n\n mount.cifs //srv/share /mnt -o domain=ZELDA,multiuser,...\n su - testuser\n cifscreds add -d ZELDA -u testuser\n ...\n ls /mnt/1\n ...\n umount /mnt\n echo scan > /sys/kernel/debug/kmemleak\n cat /sys/kernel/debug/kmemleak\n unreferenced object 0xffff8881203c3f08 (size 8):\n comm \"ls\", pid 5060, jiffies 4307222943\n hex dump (first 8 bytes):\n 5a 45 4c 44 41 00 cc cc ZELDA...\n backtrace (crc d109a8cf):\n __kmalloc_node_track_caller_noprof+0x572/0x710\n kstrdup+0x3a/0x70\n cifs_sb_tlink+0x1209/0x1770 [cifs]\n cifs_get_fattr+0xe1/0xf50 [cifs]\n cifs_get_inode_info+0xb5/0x240 [cifs]\n cifs_revalidate_dentry_attr+0x2d1/0x470 [cifs]\n cifs_getattr+0x28e/0x450 [cifs]\n vfs_getattr_nosec+0x126/0x180\n vfs_statx+0xf6/0x220\n do_statx+0xab/0x110\n __x64_sys_statx+0xd5/0x130\n do_syscall_64+0xbb/0x380\n entry_SYSCALL_64_after_hwframe+0x77/0x7f"}], "id": "CVE-2025-68295", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-12-16T16:16:08.423", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3184b6a5a24ec9ee74087b2a550476f386df7dc2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3dd546e867e94c2f954bca45a961b6104ba708b6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a67e91d5f446e455dd9201cdd6e865f7078d251d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d146e96fef876492979658dce644305de35878d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f15288c137d960836277d0e3ecc62de68e52f00f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f62ffdfb431bdfa4b6d24233b7fd830eca0b801e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ff8f9bd1c46ee02d5558293915d42e82646d5ee9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: smb: client: fix memory leak in cifs_construct_tcon()", "id": "2422833", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2422833"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-68295", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68295\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68295\nhttps://lore.kernel.org/linux-cve-announce/2025121641-CVE-2025-68295-89cb@gregkh/T"], "threat_severity": "Low"}

{}