CVE-2022-50306

HIGH EPSS 4.3%
Published Sep 15, 20259mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Sep 15, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential out of bound read in ext4_fc_replay_scan() For scan loop must ensure that at least EXT4_FC_TAG_BASE_LEN space. If remain space less than EXT4_FC_TAG_BASE_LEN which will lead to out of bound read when mounting corrupt file system image. ADD_RANGE/HEAD/TAIL is needed to add extra check when do journal scan, as this three tags will read data during scan, tag length couldn't less than data length which will read.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel* <5.15.87
linuxlinux_kernel*≥5.16  –  <6.0.6

References 3

  • git.kernel.org https://git.kernel.org/stable/c/1b45cc5c7b920fd8bf72e5a888ec7abeadf41e09
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6969367c1500c15eddc38fda12f6d15518ad6d03
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f234294812c9b68d603650d28743eafb718e7ad5
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1b45cc5c7b920fd8bf72e5a888ec7abeadf41e09
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6969367c1500c15eddc38fda12f6d15518ad6d03
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f234294812c9b68d603650d28743eafb718e7ad5
    Patch