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vuln-cve/data/2026/97xxx/CVE-2026-97560.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-97560",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-09-24T16:01:01.155Z",
"datePublished": "2026-09-25T10:21:49.462Z",
"dateUpdated": "2026-10-19T09:09:23.264Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-19T09:09:23.264Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix one-byte OOB read in smb2_parse_native_symlink()\n\nWhen parsing a share-root relative native symlink, memcpy copies\nsmb_target+1 (skipping the leading separator) but uses\nstrlen(smb_target)+1 as the length, reading one byte past the\nallocated buffer.\n\nThis fixes the following KASAN splat when accessing an SMB symlink\nwith a target of '\\a\\b':\n\n BUG: KASAN: slab-out-of-bounds in smb2_parse_native_symlink+0x4f5/0xca0\n Read of size 5 at addr ffff88800878fe21 by task netfsfuzz-execu/1\n CPU: 1 UID: 0 PID: 1 Comm: netfsfuzz-execu Tainted: G N\n 7.2.0-11943-g2709dd5ae32f-dirty #1 PREEMPT(lazy)\n Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix,\n 1996)\n Call Trace:\n <TASK>\n dump_stack_lvl+0x7b/0xa0\n print_report+0xd0/0x630\n kasan_report+0xe5/0x120\n kasan_check_range+0x105/0x1b0\n __asan_memcpy+0x23/0x60\n smb2_parse_native_symlink+0x4f5/0xca0\n parse_reparse_point+0x68a/0x1530\n reparse_info_to_fattr+0x752/0xa20\n cifs_get_fattr+0x873/0x15b0\n cifs_get_inode_info+0xc0/0x310\n cifs_lookup+0x308/0xa70\n __lookup_slow+0x122/0x2b0\n lookup_slow+0x50/0x70\n path_lookupat+0x525/0xaf0\n filename_lookup+0x1f2/0x550\n vfs_statx+0xd1/0x1a0\n vfs_fstatat+0x65/0xc0\n __do_sys_newfstatat+0x9a/0x120\n do_syscall_64+0xdd/0x4a0\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/reparse.c"
],
"versions": [
{
"version": "430afd3edabf942a908570e5a41414bb455f15f8",
"lessThan": "ff411fcbfc55eec1d66ea82483d254319dc8e973",
"status": "affected",
"versionType": "git"
},
{
"version": "fc5a409552be479715b147748f2f61b41b512976",
"lessThan": "22a9d0a9ba0c89be57558c1aa80dc60a571dd89c",
"status": "affected",
"versionType": "git"
},
{
"version": "723f4ef90452aa629f3d923e92e0449d69362b1d",
"lessThan": "d1f173d28e964ba2c3c4ebe7491d594dc8c77a40",
"status": "affected",
"versionType": "git"
},
{
"version": "723f4ef90452aa629f3d923e92e0449d69362b1d",
"lessThan": "2a302fdbaf7dd00d285303c94af8f48321c22993",
"status": "affected",
"versionType": "git"
},
{
"version": "723f4ef90452aa629f3d923e92e0449d69362b1d",
"lessThan": "cb26524ef4ac28fcfa554c0656e8dc412c38a8ff",
"status": "affected",
"versionType": "git"
},
{
"version": "c9280c017ea13ff8678ef4f1ea78a4b683292e8b",
"status": "affected",
"versionType": "git"
},
{
"version": "6.6.64",
"lessThan": "6.6.158",
"status": "affected",
"versionType": "semver"
},
{
"version": "6.12.2",
"lessThan": "6.12.111",
"status": "affected",
"versionType": "semver"
},
{
"version": "6.11.11",
"lessThan": "6.12",
"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/reparse.c"
],
"versions": [
{
"version": "6.13",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.13",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.158",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.111",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.53",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.2.7",
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.3",
"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": "6.6.64",
"versionEndExcluding": "6.6.158"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.12.2",
"versionEndExcluding": "6.12.111"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13",
"versionEndExcluding": "6.18.53"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13",
"versionEndExcluding": "7.2.7"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13",
"versionEndExcluding": "7.3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.11.11"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/ff411fcbfc55eec1d66ea82483d254319dc8e973"
},
{
"url": "https://git.kernel.org/stable/c/22a9d0a9ba0c89be57558c1aa80dc60a571dd89c"
},
{
"url": "https://git.kernel.org/stable/c/d1f173d28e964ba2c3c4ebe7491d594dc8c77a40"
},
{
"url": "https://git.kernel.org/stable/c/2a302fdbaf7dd00d285303c94af8f48321c22993"
},
{
"url": "https://git.kernel.org/stable/c/cb26524ef4ac28fcfa554c0656e8dc412c38a8ff"
}
],
"title": "smb: client: fix one-byte OOB read in smb2_parse_native_symlink()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}
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