CVE-2026-93097
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)
cxl/mbox: Break poison list loop on an empty payload
In the Linux kernel, the following vulnerability has been resolved: cxl/mbox: Break poison list loop on an empty payload A device that returns count == 0 with CXL_POISON_FLAG_MORE set on every iteration never advances nr_records, so the max_errors guard never trips and the do/while loops forever while holding poison.mutex. That hangs the sysfs-triggered scan thread and blocks all subsequent poison operations on the device. The existing "Protect against an uncleared _FLAG_MORE" guard was intended to bound a misbehaving device but does not cover the count == 0 case. Stop the loop on an empty payload so a malfunctioning or malicious device cannot wedge the poison scan.
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) |
|---|---|---|---|---|---|
| ed83f7ca398b3798b82c1d5d1113011c0e5a2198 | affected | git | 86771c105293ca26bfcc320b4f60d32c137b54aa | Unavailable | None listed |
| ed83f7ca398b3798b82c1d5d1113011c0e5a2198 | affected | git | 42eab80981f4d2ac820e253e80ecf92f8cd91f69 | Unavailable | None listed |
| ed83f7ca398b3798b82c1d5d1113011c0e5a2198 | affected | git | 6ad491cef1a812cf7b53aa769cd8869516c47362 | Unavailable | None listed |
| ed83f7ca398b3798b82c1d5d1113011c0e5a2198 | affected | git | e77594e0cea67ab1c2317a27aa77a744e26ad6a6 | Unavailable | None listed |
| ed83f7ca398b3798b82c1d5d1113011c0e5a2198 | affected | git | 8b301c4afbce4bc3f94528441d8d5ce1366504ad | 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) |
|---|---|---|---|---|---|
| 6.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.4 | Unavailable | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |