CVEvulnerability

CVE-2022-49875

5.5 MEDIUM Published 2025-05-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2025-05-01
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

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.

Affected configurations

• linux linux kernel (>= 5.7 < 5.10.155) • linux linux kernel (>= 5.11 < 5.15.79) • linux linux kernel (>= 5.16 < 6.0.9) • linux linux kernel 6.1

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References