CVE-2026-89637 smb: client: fix UAF and buffer leak in cifs_check_trans2() for malformed secondary T2
10
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/smb/client/smb1transport.c"
],
"versions": [
{
"version": "316cf94a910f6f93d43cc574359d163ccae098a3",
"lessThan": "9eed72e9534b10a6d9f8f5146feff3db53aebdba",
"status": "affected",
"versionType": "git"
},
{
"version": "316cf94a910f6f93d43cc574359d163ccae098a3",
"lessThan": "5e6533a683f6a851158d9f33fb4ea8f4f25d7f84",
"status": "affected",
"versionType": "git"
},
{
"version": "316cf94a910f6f93d43cc574359d163ccae098a3",
"lessThan": "730d0bb19507b9e19c2fe5343109ac618e2fbce5",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/smb/client/smb1transport.c"
],
"versions": [
{
"version": "3.6",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.6",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.51",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.2.4",
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.3",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]Data
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19 Oct 2026 08:50Current
CVSS 3.19.8
EPSS0.00581