CVE-2026-98405
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
smb: client: fix missing iov bounds check in parse_posix_sids()
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix missing iov bounds check in parse_posix_sids() In parse_posix_sids(), sidsbuf_end is calculated using the server-supplied out_len without being validated against the actual length of the received iov (iov_len). If a server provides an inflated out_len, sidsbuf_end will point past the end of the iov. This defeats the bounds guards in posix_info_sid_size(), allowing out-of-bounds reads into adjacent kernel memory. Fix this by rejecting responses where the calculated sidsbuf_end would exceed the received iov boundaries or cause pointer wraparound.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| a90f37e3d7acfd9824f162830583bbf7846fe252 | affected | git | d91b9a3b2b38e5ac1b51e9e5b23fe53ad7b49644 | Unavailable | None listed |
| 858e74876c5cbff1dfd5bace99e32fbce2abd4b5 | affected | git | b862996e5105be1293da9cdc85da77b76021c3bd | Unavailable | None listed |
| 858e74876c5cbff1dfd5bace99e32fbce2abd4b5 | affected | git | 2f8ed71aaaba3bc8b19cd9930cc62e63e142b299 | Unavailable | None listed |
| 858e74876c5cbff1dfd5bace99e32fbce2abd4b5 | affected | git | eac6917a42899aad0617bbf04798c5dd946a1fe5 | Unavailable | None listed |
| 858e74876c5cbff1dfd5bace99e32fbce2abd4b5 | affected | git | b09d092eb24ad0110f16a9b7c1ed5d2a0c1733dc | Unavailable | None listed |
| 6.6.32 | affected | semver | 6.6.158 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.8 | Unavailable | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.54 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.8 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |