CVE-2026-31464
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)
scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done()
In the Linux kernel, the following vulnerability has been resolved: scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done() A malicious or compromised VIO server can return a num_written value in the discover targets MAD response that exceeds max_targets. This value is stored directly in vhost->num_targets without validation, and is then used as the loop bound in ibmvfc_alloc_targets() to index into disc_buf[], which is only allocated for max_targets entries. Indices at or beyond max_targets access kernel memory outside the DMA-coherent allocation. The out-of-bounds data is subsequently embedded in Implicit Logout and PLOGI MADs that are sent back to the VIO server, leaking kernel memory. Fix by clamping num_written to max_targets before storing it.
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) |
|---|---|---|---|---|---|
| 072b91f9c6510d0ec4a49d07dbc318760c7da7b3 | affected | git | d842348f8a00d5b1d7358f207eb34ffcf5b16df3 | Unavailable | None listed |
| 072b91f9c6510d0ec4a49d07dbc318760c7da7b3 | affected | git | a007246cb6c9ebdc93dafbf63cc2d43d98f402cc | Unavailable | None listed |
| 072b91f9c6510d0ec4a49d07dbc318760c7da7b3 | affected | git | 394a1cac3c12fdd7d77f19ccfd222ab5ff87ef89 | Unavailable | None listed |
| 072b91f9c6510d0ec4a49d07dbc318760c7da7b3 | affected | git | 4ed727e35b0ab17d3eeeb1e8023768396e2be161 | Unavailable | None listed |
| 072b91f9c6510d0ec4a49d07dbc318760c7da7b3 | affected | git | d1466bf991b2343cf2ba8336e440c8faf3cbb780 | Unavailable | None listed |
| 072b91f9c6510d0ec4a49d07dbc318760c7da7b3 | affected | git | 786f10b1966e485046839f992e89f2c18cbd1983 | Unavailable | None listed |
| 072b91f9c6510d0ec4a49d07dbc318760c7da7b3 | affected | git | bae4df0a643fa7f84663473aa3082a9c2ed139db | Unavailable | None listed |
| 072b91f9c6510d0ec4a49d07dbc318760c7da7b3 | affected | git | 61d099ac4a7a8fb11ebdb6e2ec8d77f38e77362f | 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) |
|---|---|---|---|---|---|
| 2.6.27 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.27 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.131 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.80 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.21 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.11 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |