Description
In the Linux kernel, the following vulnerability has been resolved: module: ensure that kobject_put() is safe for module type kobjects In 'lookup_or_create_module_kobject()', an internal kobject is created using 'module_ktype'. So call to 'kobject_put()' on error handling path causes an attempt to use an uninitialized completion pointer in 'module_kobject_release()'. In this scenario, we just want to release kobject without an extra synchronization required for a regular module unloading process, so adding an extra check whether 'complete()' is actually required makes 'kobject_put()' safe.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
942e443127e928a5631c3d5102aca8c8b3c2dd98 to < 93799fb988757cdacf19acba57807746c00378e6affected942e443127e928a5631c3d5102aca8c8b3c2dd98 to < a63d99873547d8b39eb2f6db79dd235761e7098aaffected942e443127e928a5631c3d5102aca8c8b3c2dd98 to < f1c71b4bd721a4ea21da408806964b10468623f2affected942e443127e928a5631c3d5102aca8c8b3c2dd98 to < 9e7b49ce4f9d0cb5b6e87db9e07a2fb9e754b0ddaffected942e443127e928a5631c3d5102aca8c8b3c2dd98 to < faa9059631d3491d699c69ecf512de9e1a3d6649affected942e443127e928a5631c3d5102aca8c8b3c2dd98 to < d63851049f412cdfadaeef7a7eaef5031d11c1e9affected942e443127e928a5631c3d5102aca8c8b3c2dd98 to < 31d8df3f303c3ae9115230820977ef8c35c88808affected942e443127e928a5631c3d5102aca8c8b3c2dd98 to < a6aeb739974ec73e5217c75a7c008a688d3d5cf1affected
Linux Linux
Default version status: affected
3.12affected0 to < 3.12unaffected5.4.294 to ≤ 5.4.*unaffected5.10.238 to ≤ 5.10.*unaffected5.15.183 to ≤ 5.15.*unaffected6.1.139 to ≤ 6.1.*unaffected6.6.91 to ≤ 6.6.*unaffected6.12.29 to ≤ 6.12.*unaffected6.14.7 to ≤ 6.14.*unaffected6.15 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/93799fb988757cdacf19acba57807746c00378e6 ↗
- https://git.kernel.org/stable/c/a63d99873547d8b39eb2f6db79dd235761e7098a ↗
- https://git.kernel.org/stable/c/f1c71b4bd721a4ea21da408806964b10468623f2 ↗
- https://git.kernel.org/stable/c/9e7b49ce4f9d0cb5b6e87db9e07a2fb9e754b0dd ↗
- https://git.kernel.org/stable/c/faa9059631d3491d699c69ecf512de9e1a3d6649 ↗
- https://git.kernel.org/stable/c/d63851049f412cdfadaeef7a7eaef5031d11c1e9 ↗
- https://git.kernel.org/stable/c/31d8df3f303c3ae9115230820977ef8c35c88808 ↗
- https://git.kernel.org/stable/c/a6aeb739974ec73e5217c75a7c008a688d3d5cf1 ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html ↗