NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-rt-64k-debug-core (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CENTOS9-KERNELRT64KDEBUGCORE-10340769
- published11 Jun 2025
- disclosed1 May 2025
Introduced: 1 May 2025
CVE-2022-49875 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-64k-debug-core package and not the kernel-rt-64k-debug-core package as distributed by Centos.
In the Linux kernel, the following vulnerability has been resolved:
bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
When using bpftool to pin {PROG, MAP, LINK} without FILE, segmentation fault will occur. The reson is that the lack of FILE will cause strlen to trigger NULL pointer dereference. The corresponding stacktrace is shown below:
do_pin do_pin_any do_pin_fd mount_bpffs_for_pin strlen(name) <- NULL pointer dereference
Fix it by adding validation to the common process.
References
- https://access.redhat.com/security/cve/CVE-2022-49875
- https://git.kernel.org/stable/c/34de8e6e0e1f66e431abf4123934a2581cb5f133
- https://git.kernel.org/stable/c/6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a
- https://git.kernel.org/stable/c/8c80b2fca4112d724dde477aed13f7b0510a2792
- https://git.kernel.org/stable/c/da5161ba94c5e9182c301dd4f09c94f715c068bd