CVE-2026-93115platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. mlxbf_pmc_probe() passes the result of ACPI_COMPANION() to acpi_device_hid(), which dereferences it, so force-binding the driver to a device without an ACPI companion leads to a NULL pointer dereference. Accordingly, add a requisite ACPI_COMPANION() check against NULL to the mlxbf-pmc driver and return -ENODEV when the companion is missing.
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 1a218d312e65ec396b2739056a8ea78493015f21 – < 950d8e8375f3ff4787de51b7bdf8dd23a3ad6547
- affected 1a218d312e65ec396b2739056a8ea78493015f21 – < fdfb736282b9665c0169df0c4152ec91fdea2767
- affected 1a218d312e65ec396b2739056a8ea78493015f21 – < bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0
- affected 1a218d312e65ec396b2739056a8ea78493015f21 – < a75b84119e56fc34b0f1403f3b93d357a55dabb6
- affected 1a218d312e65ec396b2739056a8ea78493015f21 – < 71ba8b6e28f7a83b724036f5de07e03bb5473286
- affected 1a218d312e65ec396b2739056a8ea78493015f21 – < d25dd08268aeaceb485189aaa84aa6d68a460291
- affected 1a218d312e65ec396b2739056a8ea78493015f21 – < c38cce70adef874c2a7b5132c14d6c221401deff
- affected 5.11
- unaffected < 5.11
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/950d8e8375f3ff4787de51b7bdf8dd23a3ad6547 (opens in a new tab)
- https://git.kernel.org/stable/c/fdfb736282b9665c0169df0c4152ec91fdea2767 (opens in a new tab)
- https://git.kernel.org/stable/c/bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0 (opens in a new tab)
- https://git.kernel.org/stable/c/a75b84119e56fc34b0f1403f3b93d357a55dabb6 (opens in a new tab)
- https://git.kernel.org/stable/c/71ba8b6e28f7a83b724036f5de07e03bb5473286 (opens in a new tab)
- https://git.kernel.org/stable/c/d25dd08268aeaceb485189aaa84aa6d68a460291 (opens in a new tab)
- https://git.kernel.org/stable/c/c38cce70adef874c2a7b5132c14d6c221401deff (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-82223 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-93115)Record last updated .