CVE-2026-97560
- Source
- https://cve.org/CVERecord?id=CVE-2026-97560
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97560.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-97560
- Downstream
- Related
- Published
- 2026-09-25T10:21:49Z
- Modified
- 2026-10-09T17:27:00Z
- Summary
- smb: client: fix one-byte OOB read in smb2_parse_native_symlink()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix one-byte OOB read in smb2_parse_native_symlink()
When parsing a share-root relative native symlink, memcpy copies smb_target+1 (skipping the leading separator) but uses strlen(smb_target)+1 as the length, reading one byte past the allocated buffer.
This fixes the following KASAN splat when accessing an SMB symlink with a target of '\a\b':
BUG: KASAN: slab-out-of-bounds in smb2_parse_native_symlink+0x4f5/0xca0 Read of size 5 at addr ffff88800878fe21 by task netfsfuzz-execu/1 CPU: 1 UID: 0 PID: 1 Comm: netfsfuzz-execu Tainted: G N 7.2.0-11943-g2709dd5ae32f-dirty #1 PREEMPT(lazy) Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996) Call Trace: dump_stack_lvl+0x7b/0xa0 print_report+0xd0/0x630 kasan_report+0xe5/0x120 kasan_check_range+0x105/0x1b0 __asan_memcpy+0x23/0x60 smb2_parse_native_symlink+0x4f5/0xca0 parse_reparse_point+0x68a/0x1530 reparse_info_to_fattr+0x752/0xa20 cifs_get_fattr+0x873/0x15b0 cifs_get_inode_info+0xc0/0x310 cifs_lookup+0x308/0xa70 __lookup_slow+0x122/0x2b0 lookup_slow+0x50/0x70 path_lookupat+0x525/0xaf0 filename_lookup+0x1f2/0x550 vfs_statx+0xd1/0x1a0 vfs_fstatat+0x65/0xc0 __do_sys_newfstatat+0x9a/0x120 do_syscall_64+0xdd/0x4a0 entry_SYSCALL_64_after_hwframe+0x77/0x7f
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97560.json" }- References
-
- https://git.kernel.org/stable/c/22a9d0a9ba0c89be57558c1aa80dc60a571dd89c
- https://git.kernel.org/stable/c/2a302fdbaf7dd00d285303c94af8f48321c22993
- https://git.kernel.org/stable/c/cb26524ef4ac28fcfa554c0656e8dc412c38a8ff
- https://git.kernel.org/stable/c/d1f173d28e964ba2c3c4ebe7491d594dc8c77a40
- https://git.kernel.org/stable/c/ff411fcbfc55eec1d66ea82483d254319dc8e973
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97560.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-97560
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced430afd3edabf942a908570e5a41414bb455f15f8Fixedff411fcbfc55eec1d66ea82483d254319dc8e973
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedfc5a409552be479715b147748f2f61b41b512976Fixed22a9d0a9ba0c89be57558c1aa80dc60a571dd89c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced723f4ef90452aa629f3d923e92e0449d69362b1dFixedd1f173d28e964ba2c3c4ebe7491d594dc8c77a40Fixed2a302fdbaf7dd00d285303c94af8f48321c22993Fixedcb26524ef4ac28fcfa554c0656e8dc412c38a8ff
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.64Fixed6.6.158
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.12.2Fixed6.12.111
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.11.11Fixed6.12
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc9280c017ea13ff8678ef4f1ea78a4b683292e8b