- —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: LoongArch: Fix address space mismatch in kexec command line lookup When searching the loaded segments for the "kexec" command line marker, the kexec_load(2) path (file_mode == 0) passes the user-space segment buffer straight to strncmp() through a bogus (char __user *) cast. This dereferences a user pointer in kernel context, which is wrong and is flagged by sparse: arch/loongarch/kernel/machine_kexec.c:84:51: sparse: incorrect type in argument 2 (different address spaces) @@ expected char const * @@ got char [noderef] __user * Here copy the marker-sized prefix of each segment into a small on-stack buffer with copy_from_user() before comparing, and skip segments that fault. The subsequent copy_from_user() that stages the full command line into the safe area is left unchanged.
Timeline
ID reserved
By Linux
- 13 days later
· 13 days later
Published
- 3 months later
· 3 months 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 (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 4a03b2ac06a5bcae29371866d9d11f5bfd4c9188 – < 742f2c0a64a7557495e831c3c112d92e308bd4ae
- affected 4a03b2ac06a5bcae29371866d9d11f5bfd4c9188 – < 3b71f51fa3a247921408879eab2ddee82da8a980
- affected 4a03b2ac06a5bcae29371866d9d11f5bfd4c9188 – < eaa908d8d523b0ab75dab5ebd6662e70af5e5d7e
- affected 4a03b2ac06a5bcae29371866d9d11f5bfd4c9188 – < a94d6726ec8680a2b0c453fc782a543f68a1ea06
- affected 4a03b2ac06a5bcae29371866d9d11f5bfd4c9188 – < 7a54e0cbaad4a5a09e7cc7a4f05d181048e98ca7
- affected 4a03b2ac06a5bcae29371866d9d11f5bfd4c9188 – < 485ed44db5694d8d2e5027f63ad608e705286f30
- affected 6.1
- unaffected < 6.1
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.42 – ≤ 6.18.*
- unaffected 7.1.6 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/742f2c0a64a7557495e831c3c112d92e308bd4ae (opens in a new tab)
- https://git.kernel.org/stable/c/3b71f51fa3a247921408879eab2ddee82da8a980 (opens in a new tab)
- https://git.kernel.org/stable/c/eaa908d8d523b0ab75dab5ebd6662e70af5e5d7e (opens in a new tab)
- https://git.kernel.org/stable/c/a94d6726ec8680a2b0c453fc782a543f68a1ea06 (opens in a new tab)
- https://git.kernel.org/stable/c/7a54e0cbaad4a5a09e7cc7a4f05d181048e98ca7 (opens in a new tab)
- https://git.kernel.org/stable/c/485ed44db5694d8d2e5027f63ad608e705286f30 (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-2026-57043 (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-2026-68435)Record last updated .