CVE-2026-97560

{"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"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/smb/client/reparse.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "ff411fcbfc55eec1d66ea82483d254319dc8e973", "status": "affected", "version": "430afd3edabf942a908570e5a41414bb455f15f8", "versionType": "git"}, {"lessThan": "22a9d0a9ba0c89be57558c1aa80dc60a571dd89c", "status": "affected", "version": "fc5a409552be479715b147748f2f61b41b512976", "versionType": "git"}, {"lessThan": "d1f173d28e964ba2c3c4ebe7491d594dc8c77a40", "status": "affected", "version": "723f4ef90452aa629f3d923e92e0449d69362b1d", "versionType": "git"}, {"lessThan": "2a302fdbaf7dd00d285303c94af8f48321c22993", "status": "affected", "version": "723f4ef90452aa629f3d923e92e0449d69362b1d", "versionType": "git"}, {"lessThan": "cb26524ef4ac28fcfa554c0656e8dc412c38a8ff", "status": "affected", "version": "723f4ef90452aa629f3d923e92e0449d69362b1d", "versionType": "git"}, {"status": "affected", "version": "c9280c017ea13ff8678ef4f1ea78a4b683292e8b", "versionType": "git"}, {"lessThan": "6.6.158", "status": "affected", "version": "6.6.64", "versionType": "semver"}, {"lessThan": "6.12.111", "status": "affected", "version": "6.12.2", "versionType": "semver"}, {"lessThan": "6.12", "status": "affected", "version": "6.11.11", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/smb/client/reparse.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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 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"}], "id": "CVE-2026-97560", "lastModified": "2026-10-19T10:17:25.073", "metrics": {}, "published": "2026-09-25T11:17:06.537", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/22a9d0a9ba0c89be57558c1aa80dc60a571dd89c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2a302fdbaf7dd00d285303c94af8f48321c22993"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cb26524ef4ac28fcfa554c0656e8dc412c38a8ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d1f173d28e964ba2c3c4ebe7491d594dc8c77a40"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ff411fcbfc55eec1d66ea82483d254319dc8e973"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: smb: client: fix one-byte OOB read in smb2_parse_native_symlink()", "id": "2541022", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541022"}, "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"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsmb: client: fix one-byte OOB read in smb2_parse_native_symlink()\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.\nThis fixes the following KASAN splat when accessing an SMB symlink\nwith a target of '\\a\\b':\nBUG: KASAN: slab-out-of-bounds in smb2_parse_native_symlink+0x4f5/0xca0\nRead of size 5 at addr ffff88800878fe21 by task netfsfuzz-execu/1\nCPU: 1 UID: 0 PID: 1 Comm: netfsfuzz-execu Tainted: G N\n7.2.0-11943-g2709dd5ae32f-dirty #1 PREEMPT(lazy)\nHardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix,\n1996)\nCall Trace:\n<TASK>\ndump_stack_lvl+0x7b/0xa0\nprint_report+0xd0/0x630\nkasan_report+0xe5/0x120\nkasan_check_range+0x105/0x1b0\n__asan_memcpy+0x23/0x60\nsmb2_parse_native_symlink+0x4f5/0xca0\nparse_reparse_point+0x68a/0x1530\nreparse_info_to_fattr+0x752/0xa20\ncifs_get_fattr+0x873/0x15b0\ncifs_get_inode_info+0xc0/0x310\ncifs_lookup+0x308/0xa70\n__lookup_slow+0x122/0x2b0\nlookup_slow+0x50/0x70\npath_lookupat+0x525/0xaf0\nfilename_lookup+0x1f2/0x550\nvfs_statx+0xd1/0x1a0\nvfs_fstatat+0x65/0xc0\n__do_sys_newfstatat+0x9a/0x120\ndo_syscall_64+0xdd/0x4a0\nentry_SYSCALL_64_after_hwframe+0x77/0x7f", "A flaw was found in the Linux kernel's SMB (Server Message Block) client. When parsing a share-root relative native symbolic link, an incorrect length calculation causes the client to read past the end of the allocated buffer in the smb2_parse_native_symlink function. A malicious server or attacker providing crafted SMB responses can exploit this issue to trigger a Denial of Service (DoS) via a kernel crash or potentially expose sensitive kernel memory."], "name": "CVE-2026-97560", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-97560\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-97560\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97560.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fc5a409552be479715b147748f2f61b41b512976,22a9d0a9ba0c89be57558c1aa80dc60a571dd89c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[723f4ef90452aa629f3d923e92e0449d69362b1d,d1f173d28e964ba2c3c4ebe7491d594dc8c77a40)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[723f4ef90452aa629f3d923e92e0449d69362b1d,2a302fdbaf7dd00d285303c94af8f48321c22993)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[723f4ef90452aa629f3d923e92e0449d69362b1d,cb26524ef4ac28fcfa554c0656e8dc412c38a8ff)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "430afd3edabf942a908570e5a41414bb455f15f8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "c9280c017ea13ff8678ef4f1ea78a4b683292e8b"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.2,6.12.111)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.6.64,6.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.11.11,6.12)"}}], "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": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.111,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.53,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.7,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc3,*]"}}], "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": "2026-09-25T18:30:16.854197+00:00", "updated": "2026-10-01T09:30:05.897889+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}