CVE-2024-27038
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()…
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.29% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0efb9ef6fb95384ba631d6819e66f10392aabfa2Patch
- https://git.kernel.org/stable/c/239174535dba11f7b83de0eaaa27909024f8c185Patch
- https://git.kernel.org/stable/c/6f073b24a9e2becd25ac4505a9780a87e621bb51Patch
- https://git.kernel.org/stable/c/a5d9b1aa61b401867b9066d54086b3e4ee91f8edPatch
- https://git.kernel.org/stable/c/a8b2b26fdd011ebe36d68a9a321ca45801685959Patch
- https://git.kernel.org/stable/c/c554badcae9c45b737a22d23454170c6020b90e6Patch
- https://git.kernel.org/stable/c/d7ae7d1265686b55832a445b1db8cdd69738ac07Patch
- https://git.kernel.org/stable/c/e97fe4901e0f59a0bfd524578fe3768f8ca42428Patch
- https://git.kernel.org/stable/c/0efb9ef6fb95384ba631d6819e66f10392aabfa2Patch
- https://git.kernel.org/stable/c/239174535dba11f7b83de0eaaa27909024f8c185Patch
- https://git.kernel.org/stable/c/6f073b24a9e2becd25ac4505a9780a87e621bb51Patch
- https://git.kernel.org/stable/c/a5d9b1aa61b401867b9066d54086b3e4ee91f8edPatch
- https://git.kernel.org/stable/c/a8b2b26fdd011ebe36d68a9a321ca45801685959Patch
- https://git.kernel.org/stable/c/c554badcae9c45b737a22d23454170c6020b90e6Patch
- https://git.kernel.org/stable/c/d7ae7d1265686b55832a445b1db8cdd69738ac07Patch
- https://git.kernel.org/stable/c/e97fe4901e0f59a0bfd524578fe3768f8ca42428Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.