CVE-2022-49478

HIGH EPSS 18.3%
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: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init Syzbot reported that -1 is used as array index. The problem was in missing validation check. hdw->unit_number is initialized with -1 and then if init table walk fails this value remains unchanged. Since code blindly uses this member for array indexing adding sanity check is the easiest fix for that. hdw->workpoll initialization moved upper to prevent warning in __flush_work.

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
18.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-129

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥2.6.18  –  <4.9.318
linuxlinux_kernel*≥4.10  –  <4.14.283
linuxlinux_kernel*≥4.15  –  <4.19.247
linuxlinux_kernel*≥4.20  –  <5.4.198
linuxlinux_kernel*≥5.5  –  <5.10.121
linuxlinux_kernel*≥5.11  –  <5.15.46
linuxlinux_kernel*≥5.16  –  <5.17.14
linuxlinux_kernel*≥5.18  –  <5.18.3

References 9

  • git.kernel.org https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511
    Patch