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CVE-2025-68295 (GCVE-0-2025-68295)

Vulnerability from cvelistv5 – Published: 2025-12-16 15:06 – Updated: 2026-06-16 16:54
VLAI
Title
smb: client: fix memory leak in cifs_construct_tcon()
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix memory leak in cifs_construct_tcon() When having a multiuser mount with domain= specified and using cifscreds, cifs_set_cifscreds() will end up setting @ctx->domainname, so it needs to be freed before leaving cifs_construct_tcon(). This fixes the following memory leak reported by kmemleak: mount.cifs //srv/share /mnt -o domain=ZELDA,multiuser,... su - testuser cifscreds add -d ZELDA -u testuser ... ls /mnt/1 ... umount /mnt echo scan > /sys/kernel/debug/kmemleak cat /sys/kernel/debug/kmemleak unreferenced object 0xffff8881203c3f08 (size 8): comm "ls", pid 5060, jiffies 4307222943 hex dump (first 8 bytes): 5a 45 4c 44 41 00 cc cc ZELDA... backtrace (crc d109a8cf): __kmalloc_node_track_caller_noprof+0x572/0x710 kstrdup+0x3a/0x70 cifs_sb_tlink+0x1209/0x1770 [cifs] cifs_get_fattr+0xe1/0xf50 [cifs] cifs_get_inode_info+0xb5/0x240 [cifs] cifs_revalidate_dentry_attr+0x2d1/0x470 [cifs] cifs_getattr+0x28e/0x450 [cifs] vfs_getattr_nosec+0x126/0x180 vfs_statx+0xf6/0x220 do_statx+0xab/0x110 __x64_sys_statx+0xd5/0x130 do_syscall_64+0xbb/0x380 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 16:54 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f2aee329a68f5a907bcff11a109dfe17c0b41aeb , < ff8f9bd1c46ee02d5558293915d42e82646d5ee9 (git)
Affected: f2aee329a68f5a907bcff11a109dfe17c0b41aeb , < d146e96fef876492979658dce644305de35878d4 (git)
Affected: f2aee329a68f5a907bcff11a109dfe17c0b41aeb , < 3dd546e867e94c2f954bca45a961b6104ba708b6 (git)
Affected: f2aee329a68f5a907bcff11a109dfe17c0b41aeb , < f62ffdfb431bdfa4b6d24233b7fd830eca0b801e (git)
Affected: f2aee329a68f5a907bcff11a109dfe17c0b41aeb , < f15288c137d960836277d0e3ecc62de68e52f00f (git)
Affected: f2aee329a68f5a907bcff11a109dfe17c0b41aeb , < a67e91d5f446e455dd9201cdd6e865f7078d251d (git)
Affected: f2aee329a68f5a907bcff11a109dfe17c0b41aeb , < 3184b6a5a24ec9ee74087b2a550476f386df7dc2 (git)
Affected: 1456d3cea31114137fabf1110d20a2e2c6d6060f (git)
Affected: 16764d7486d02b1699ae16e91d7a577602398b17 (git)
Affected: 904847402bd74a28164bd4d8da082d1eace7c190 (git)
Affected: 325fa2a6729b74b2806b31725940cb54658515e5 (git)
Affected: 8db988a982908b7bff76e095000adabf9c29698b (git)
Affected: 4.4.194 , < 4.5 (semver)
Affected: 4.9.194 , < 4.10 (semver)
Affected: 4.14.146 , < 4.15 (semver)
Affected: 4.19.75 , < 4.20 (semver)
Affected: 5.2.17 , < 5.3 (semver)
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Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 5.10.247 , ≤ 5.10.* (semver)
Unaffected: 5.15.197 , ≤ 5.15.* (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.119 , ≤ 6.6.* (semver)
Unaffected: 6.12.61 , ≤ 6.12.* (semver)
Unaffected: 6.17.11 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "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-\u003edomainname,\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 \u003e /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"
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          "url": "https://git.kernel.org/stable/c/ff8f9bd1c46ee02d5558293915d42e82646d5ee9"
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    "cveId": "CVE-2025-68295",
    "datePublished": "2025-12-16T15:06:14.977Z",
    "dateReserved": "2025-12-16T14:48:05.293Z",
    "dateUpdated": "2026-06-16T16:54:20.236Z",
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    "epss": {
      "cve": "CVE-2025-68295",
      "date": "2026-09-16",
      "epss": "0.00207",
      "percentile": "0.10994"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68295\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-16T16:16:08.423\",\"lastModified\":\"2026-06-17T09:58:53.287\",\"vulnStatus\":\"Deferred\",\"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-\u003edomainname,\\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 \u003e /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\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/smb/client/connect.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\",\"lessThan\":\"ff8f9bd1c46ee02d5558293915d42e82646d5ee9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\",\"lessThan\":\"d146e96fef876492979658dce644305de35878d4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\",\"lessThan\":\"3dd546e867e94c2f954bca45a961b6104ba708b6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\",\"lessThan\":\"f62ffdfb431bdfa4b6d24233b7fd830eca0b801e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\",\"lessThan\":\"f15288c137d960836277d0e3ecc62de68e52f00f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\",\"lessThan\":\"a67e91d5f446e455dd9201cdd6e865f7078d251d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\",\"lessThan\":\"3184b6a5a24ec9ee74087b2a550476f386df7dc2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1456d3cea31114137fabf1110d20a2e2c6d6060f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"16764d7486d02b1699ae16e91d7a577602398b17\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"904847402bd74a28164bd4d8da082d1eace7c190\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"325fa2a6729b74b2806b31725940cb54658515e5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8db988a982908b7bff76e095000adabf9c29698b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.4.194\",\"lessThan\":\"4.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.9.194\",\"lessThan\":\"4.10\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.14.146\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.19.75\",\"lessThan\":\"4.20\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.2.17\",\"lessThan\":\"5.3\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/smb/client/connect.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.3\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.3\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.247\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.197\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.159\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.119\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.61\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17.11\",\"lessThanOrEqual\":\"6.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-06-16T16:54:11.171368Z\",\"id\":\"CVE-2025-68295\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:37:16+00:00",
      "cve": "CVE-2025-68295",
      "id": "CVE-2025-68295",
      "initial_release_date": "2025-12-16T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: smb: client: fix memory leak in cifs_construct_tcon()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68295.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-28T16:49:55Z",
      "cve": "CVE-2025-68295",
      "id": "CVE-2025-68295",
      "initial_release_date": "2025-12-19T00:24:30Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "779",
      "product_status:known_not_affected": "36",
      "product_status:recommended": "303",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-68295",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68295.json",
      "version": "32"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-68295\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-16T16:54:11.171368Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-16T16:54:16.089Z\"}}], \"cna\": {\"title\": \"smb: client: fix memory leak in cifs_construct_tcon()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\", \"lessThan\": \"ff8f9bd1c46ee02d5558293915d42e82646d5ee9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\", \"lessThan\": \"d146e96fef876492979658dce644305de35878d4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\", \"lessThan\": \"3dd546e867e94c2f954bca45a961b6104ba708b6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\", \"lessThan\": \"f62ffdfb431bdfa4b6d24233b7fd830eca0b801e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\", \"lessThan\": \"f15288c137d960836277d0e3ecc62de68e52f00f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\", \"lessThan\": \"a67e91d5f446e455dd9201cdd6e865f7078d251d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f2aee329a68f5a907bcff11a109dfe17c0b41aeb\", \"lessThan\": \"3184b6a5a24ec9ee74087b2a550476f386df7dc2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1456d3cea31114137fabf1110d20a2e2c6d6060f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"16764d7486d02b1699ae16e91d7a577602398b17\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"904847402bd74a28164bd4d8da082d1eace7c190\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"325fa2a6729b74b2806b31725940cb54658515e5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8db988a982908b7bff76e095000adabf9c29698b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4.4.194\", \"lessThan\": \"4.5\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.9.194\", \"lessThan\": \"4.10\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.14.146\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.19.75\", \"lessThan\": \"4.20\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.2.17\", \"lessThan\": \"5.3\", \"versionType\": \"semver\"}], \"programFiles\": [\"fs/smb/client/connect.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.247\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.197\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.159\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.119\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.61\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.17.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.17.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/smb/client/connect.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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-\u003edomainname,\\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 \u003e /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\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.247\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.197\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.159\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.119\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.61\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.17.11\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.4.194\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.9.194\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.14.146\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.19.75\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.2.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T16:02:33.913Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-68295\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-16T16:54:20.236Z\", \"dateReserved\": \"2025-12-16T14:48:05.293Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-12-16T15:06:14.977Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.