CVE-2026-43112
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)
fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath
In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath When cifs_sanitize_prepath is called with an empty string or a string containing only delimiters (e.g., "/"), the current logic attempts to check *(cursor2 - 1) before cursor2 has advanced. This results in an out-of-bounds read. This patch adds an early exit check after stripping prepended delimiters. If no path content remains, the function returns NULL. The bug was identified via manual audit and verified using a standalone test case compiled with AddressSanitizer, which triggered a SEGV on affected inputs.
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) |
|---|---|---|---|---|---|
| c63433a09d6ae4c226fcbc66da4c58fc189fd746 | affected | git | a2ba20c17de8eb028f96b1d85f119d3d25655bd9 | Unavailable | None listed |
| a31080899d5fdafcccf7f39dd214a814a2c82626 | affected | git | fbced33599653471b4581dfe1abc7b467031f126 | Unavailable | None listed |
| a31080899d5fdafcccf7f39dd214a814a2c82626 | affected | git | 5d4fe469fe7dbff7d874c196bb680a82f2625d95 | Unavailable | None listed |
| a31080899d5fdafcccf7f39dd214a814a2c82626 | affected | git | 2d29214448ec0f4e7e18bb1c14dd4a6c07f1c439 | Unavailable | None listed |
| a31080899d5fdafcccf7f39dd214a814a2c82626 | affected | git | 86f9c23e0814cfdffda9eedf0c591c51ba209010 | Unavailable | None listed |
| a31080899d5fdafcccf7f39dd214a814a2c82626 | affected | git | 49b1ce6d7cfb6c5a49f68bf5ccfcfb6ba14e63c3 | Unavailable | None listed |
| a31080899d5fdafcccf7f39dd214a814a2c82626 | affected | git | 78ec5bf2f589ec7fd8f169394bfeca541b077317 | Unavailable | None listed |
| 5.15.11 | affected | semver | 5.15.209 | 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) |
|---|---|---|---|---|---|
| 5.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.16 | Unavailable | None listed |
| 5.15.209 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.136 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.83 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.24 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.14 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |