Description
In the Linux kernel, the following vulnerability has been resolved: clk: Fix clk_core_get NULL dereference It is possible for clk_core_get to dereference a NULL in the following sequence: clk_core_get() of_clk_get_hw_from_clkspec() __of_clk_get_hw_from_provider() __clk_get_hw() __clk_get_hw() can return NULL which is dereferenced by clk_core_get() at hw->core. Prior to commit dde4eff47c82 ("clk: Look for parents with clkdev based clk_lookups") the check IS_ERR_OR_NULL() was performed which would have caught the NULL. Reading the description of this function it talks about returning NULL but that cannot be so at the moment. Update the function to check for hw before dereferencing it and return NULL if hw is NULL.
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
dde4eff47c82c52a72af333d9e55370eee6d95d6 to < d7ae7d1265686b55832a445b1db8cdd69738ac07affecteddde4eff47c82c52a72af333d9e55370eee6d95d6 to < 239174535dba11f7b83de0eaaa27909024f8c185affecteddde4eff47c82c52a72af333d9e55370eee6d95d6 to < 0efb9ef6fb95384ba631d6819e66f10392aabfa2affecteddde4eff47c82c52a72af333d9e55370eee6d95d6 to < a8b2b26fdd011ebe36d68a9a321ca45801685959affecteddde4eff47c82c52a72af333d9e55370eee6d95d6 to < a5d9b1aa61b401867b9066d54086b3e4ee91f8edaffecteddde4eff47c82c52a72af333d9e55370eee6d95d6 to < c554badcae9c45b737a22d23454170c6020b90e6affecteddde4eff47c82c52a72af333d9e55370eee6d95d6 to < 6f073b24a9e2becd25ac4505a9780a87e621bb51affecteddde4eff47c82c52a72af333d9e55370eee6d95d6 to < e97fe4901e0f59a0bfd524578fe3768f8ca42428affected
Linux Linux
Default version status: affected
5.2affected0 to < 5.2unaffected5.4.273 to ≤ 5.4.*unaffected5.10.214 to ≤ 5.10.*unaffected5.15.153 to ≤ 5.15.*unaffected6.1.83 to ≤ 6.1.*unaffected6.6.23 to ≤ 6.6.*unaffected6.7.11 to ≤ 6.7.*unaffected6.8.2 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/d7ae7d1265686b55832a445b1db8cdd69738ac07 ↗
- https://git.kernel.org/stable/c/239174535dba11f7b83de0eaaa27909024f8c185 ↗
- https://git.kernel.org/stable/c/0efb9ef6fb95384ba631d6819e66f10392aabfa2 ↗
- https://git.kernel.org/stable/c/a8b2b26fdd011ebe36d68a9a321ca45801685959 ↗
- https://git.kernel.org/stable/c/a5d9b1aa61b401867b9066d54086b3e4ee91f8ed ↗
- https://git.kernel.org/stable/c/c554badcae9c45b737a22d23454170c6020b90e6 ↗
- https://git.kernel.org/stable/c/6f073b24a9e2becd25ac4505a9780a87e621bb51 ↗
- https://git.kernel.org/stable/c/e97fe4901e0f59a0bfd524578fe3768f8ca42428 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗