CVE-2022-49548

HIGH EPSS 19.8%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpf_trampoline_get_progs() The cnt value in the 'cnt >= BPF_MAX_TRAMP_PROGS' check does not include BPF_TRAMP_MODIFY_RETURN bpf programs, so the number of the attached BPF_TRAMP_MODIFY_RETURN bpf programs in a trampoline can exceed BPF_MAX_TRAMP_PROGS. When this happens, the assignment '*progs++ = aux->prog' in bpf_trampoline_get_progs() will cause progs array overflow as the progs field in the bpf_tramp_progs struct can only hold at most BPF_MAX_TRAMP_PROGS bpf programs.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
19.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-129

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.7  –  <5.10.120
linuxlinux_kernel*≥5.11  –  <5.15.45
linuxlinux_kernel*≥5.16  –  <5.17.13
linuxlinux_kernel*≥5.18  –  <5.18.2

References 5

  • git.kernel.org https://git.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e36452d5da6325df7c10cffc60a9e68d21e2606d
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e36452d5da6325df7c10cffc60a9e68d21e2606d
    Patch