CVE-2024-27038clk: Fix clk_core_get NULL dereference
Updated under an hour ago ()
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It affects Linux and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from dde4eff47c82c52a72af333d9e55370eee6d95d6 before d7ae7d1265686b55832a445b1db8cdd69738ac07; from dde4eff47c82c52a72af333d9e55370eee6d95d6 before 239174535dba11f7b83de0eaaa27909024f8c185; from dde4eff47c82c52a72af333d9e55370eee6d95d6 before 0efb9ef6fb95384ba631d6819e66f10392aabfa2; from dde4eff47c82c52a72af333d9e55370eee6d95d6 before a8b2b26fdd011ebe36d68a9a321ca45801685959; from dde4eff47c82c52a72af333d9e55370eee6d95d6 before a5d9b1aa61b401867b9066d54086b3e4ee91f8ed; from dde4eff47c82c52a72af333d9e55370eee6d95d6 before c554badcae9c45b737a22d23454170c6020b90e6; from dde4eff47c82c52a72af333d9e55370eee6d95d6 before 6f073b24a9e2becd25ac4505a9780a87e621bb51; from dde4eff47c82c52a72af333d9e55370eee6d95d6 before e97fe4901e0f59a0bfd524578fe3768f8ca42428 | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1.1 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.2 before 5.4.273; from 5.5 before 5.10.214; from 5.11 before 5.15.153; from 5.16 before 6.1.83; from 6.2 before 6.6.23; from 6.7 before 6.7.11; from 6.8 before 6.8.2 | NVD |
debian debian_linux debian:debian_linux | 10.0 | NVD |
References
- https://git.kernel.org/stable/c/d7ae7d1265686b55832a445b1db8cdd69738ac07patch
- https://git.kernel.org/stable/c/239174535dba11f7b83de0eaaa27909024f8c185patch
- https://git.kernel.org/stable/c/0efb9ef6fb95384ba631d6819e66f10392aabfa2patch
- https://git.kernel.org/stable/c/a8b2b26fdd011ebe36d68a9a321ca45801685959patch
- https://git.kernel.org/stable/c/a5d9b1aa61b401867b9066d54086b3e4ee91f8edpatch
- https://git.kernel.org/stable/c/c554badcae9c45b737a22d23454170c6020b90e6patch
- https://git.kernel.org/stable/c/6f073b24a9e2becd25ac4505a9780a87e621bb51patch
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.