vulnerability
Red Hat: CVE-2022-49875: kernel: bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | May 1, 2025 | Jul 9, 2025 | Jul 31, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
May 1, 2025
Added
Jul 9, 2025
Modified
Jul 31, 2025
Description
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.
Solution
no-fix-redhat-rpm-package
References
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