CVE-2022-49875 — bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
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 {PR…
Published: 2025-05-01 · CVSS: 5.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7