CVE-2026-93260
- Source
- https://cve.org/CVERecord?id=CVE-2026-93260
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93260.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-93260
- Downstream
- Related
- Published
- 2026-09-24T15:51:46Z
- Modified
- 2026-11-01T02:30:20Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- powerpc/xive: propagate IPI init errors to prevent use-after-free
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
powerpc/xive: propagate IPI init errors to prevent use-after-free
When xive_init_ipis() fails (e.g. irq_domain_alloc_irqs() fails), the error path frees the global xive_ipis array. However, xive_smp_probe() previously ignored this failure and proceeded to call xive_setup_cpu_ipi(), which dereferences the already-freed xive_ipis pointer -- a use-after-free.
Now that xive_smp_probe() returns int (previous patch), propagate the error from xive_init_ipis() and xive_setup_cpu_ipi() through xive_smp_probe(). Check the return value in both pnv_smp_probe() and pSeries_smp_probe() so that IPI setup is aborted cleanly on failure, avoiding the use-after-free.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93260.json" }- References
-
- https://git.kernel.org/stable/c/2ea6238343691309e68308131c7e80c3ae05afea
- https://git.kernel.org/stable/c/411a3c016e7a95f5fa105a0587e07d0647a77727
- https://git.kernel.org/stable/c/5c9ab0c9cede9f149733d330e2d7d45341b71359
- https://git.kernel.org/stable/c/89e1caa5b0aafe23e9938d9a311e9d41baee583e
- https://git.kernel.org/stable/c/c554a8d376d5aea1b237ed6bef6f9fbfc550e67f
- https://git.kernel.org/stable/c/e36b1c2eafcaaddefa70d55e6fda74cf6cda38af
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93260.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-93260
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced243e25112d06b348f087a6f7aba4bbc288285bddFixed89e1caa5b0aafe23e9938d9a311e9d41baee583eFixede36b1c2eafcaaddefa70d55e6fda74cf6cda38afFixed2ea6238343691309e68308131c7e80c3ae05afeaFixed5c9ab0c9cede9f149733d330e2d7d45341b71359Fixedc554a8d376d5aea1b237ed6bef6f9fbfc550e67fFixed411a3c016e7a95f5fa105a0587e07d0647a77727
Linux / Kernel
Package
- Name
- Kernel