CVE-2022-49875
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 1, 2025
First seenMay 1, 2025
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- linux linux_kernel5.10.155, 5.15.79, 6.0.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.7 ≤ v < 5.10.155, 5.11 ≤ v < 5.15.79, 5.16 ≤ v < 6.0.9, 6.1 | 5.10.155, 5.15.79, 6.0.9 |
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