Description
In the Linux kernel, the following vulnerability has been resolved: EDAC/skx_common: Fix general protection fault After loading i10nm_edac (which automatically loads skx_edac_common), if unload only i10nm_edac, then reload it and perform error injection testing, a general protection fault may occur: mce: [Hardware Error]: Machine check events logged Oops: general protection fault ... ... Workqueue: events mce_gen_pool_process RIP: 0010:string+0x53/0xe0 ... Call Trace: <TASK> ? die_addr+0x37/0x90 ? exc_general_protection+0x1e7/0x3f0 ? asm_exc_general_protection+0x26/0x30 ? string+0x53/0xe0 vsnprintf+0x23e/0x4c0 snprintf+0x4d/0x70 skx_adxl_decode+0x16a/0x330 [skx_edac_common] skx_mce_check_error.part.0+0xf8/0x220 [skx_edac_common] skx_mce_check_error+0x17/0x20 [skx_edac_common] ... The issue arose was because the variable 'adxl_component_count' (inside skx_edac_common), which counts the ADXL components, was not reset. During the reloading of i10nm_edac, the count was incremented by the actual number of ADXL components again, resulting in a count that was double the real number of ADXL components. This led to an out-of-bounds reference to the ADXL component array, causing the general protection fault above. Fix this issue by resetting the 'adxl_component_count' in adxl_put(), which is called during the unloading of {skx,i10nm}_edac.
Product status
c68d1dbfe381260e8e30880fa6b8e708e57143f6 (git) before 80bf28fd623d97dd4f4825fbbe9d736cec2afba3
3070e81609169b316e3e3f226456950238338d43 (git) before a6ed3a6edff09c1187cc6ade7f5967bca2376a13
2259b26ff45a231579485752bda51acf87c39d18 (git) before bf6a8502a5f4ff6e4d135d795945cdade49ec8b0
6d0d9f0fd13536ed21b9c0dd576ba292f750a1c1 (git) before e8530ed3c0769a4d8f79c212715ec1cf277787f8
c25ae63de6805589e954b86020f89065b9eca4d4 (git) before 3f5d0659000923735350da60ad710f8c804544fe
123b158635505c89ed0d3ef45c5845ff9030a466 (git) before a13e8343ffcff27af1ff79597ff7ba241e6d9471
123b158635505c89ed0d3ef45c5845ff9030a466 (git) before 31ef6f7c9aee3be78d63789653e92350f2537f93
123b158635505c89ed0d3ef45c5845ff9030a466 (git) before 20d2d476b3ae18041be423671a8637ed5ffd6958
32700ecf8007e071d1ce4c78f65b85f46d05f32a (git)
5.4.282 (semver) before 5.4.295
5.10.224 (semver) before 5.10.239
5.15.165 (semver) before 5.15.186
6.1.103 (semver) before 6.1.142
6.6.44 (semver) before 6.6.94
6.10.3 (semver) before 6.11
6.11
Any version before 6.11
5.4.295 (semver)
5.10.239 (semver)
5.15.186 (semver)
6.1.142 (semver)
6.6.94 (semver)
6.12.34 (semver)
6.15.3 (semver)
6.16 (original_commit_for_fix)
References
lists.debian.org/debian-lts-announce/2025/10/msg00008.html
lists.debian.org/debian-lts-announce/2025/10/msg00007.html
git.kernel.org/...c/80bf28fd623d97dd4f4825fbbe9d736cec2afba3
git.kernel.org/...c/a6ed3a6edff09c1187cc6ade7f5967bca2376a13
git.kernel.org/...c/bf6a8502a5f4ff6e4d135d795945cdade49ec8b0
git.kernel.org/...c/e8530ed3c0769a4d8f79c212715ec1cf277787f8
git.kernel.org/...c/3f5d0659000923735350da60ad710f8c804544fe
git.kernel.org/...c/a13e8343ffcff27af1ff79597ff7ba241e6d9471
git.kernel.org/...c/31ef6f7c9aee3be78d63789653e92350f2537f93
git.kernel.org/...c/20d2d476b3ae18041be423671a8637ed5ffd6958