CVE-2023-53672

MEDIUM EPSS 3.2%
Published Oct 7, 20258mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 7, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist) [ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 14

VendorProductVersionRange
linuxlinux_kernel*≥3.9.1  –  <4.14.326
linuxlinux_kernel*≥4.15  –  <4.19.295
linuxlinux_kernel*≥4.20  –  <5.4.257
linuxlinux_kernel*≥5.5  –  <5.10.197
linuxlinux_kernel*≥5.11  –  <5.15.133
linuxlinux_kernel*≥5.16  –  <6.1.55
linuxlinux_kernel*≥6.2  –  <6.5.5
linuxlinux_kernel3.9any
linuxlinux_kernel3.9any
linuxlinux_kernel3.9any
linuxlinux_kernel3.9any
linuxlinux_kernel3.9any
linuxlinux_kernel3.9any
linuxlinux_kernel3.9any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177
    Patch