CVE-2023-53450 — Reachable Assertion in Linux

CWE-617 — Reachable Assertion5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 98.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 1

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: remove a BUG_ON in ext4_mb_release_group_pa() If a malicious fuzzer overwrites the ext4 superblock while it is mounted such that the s_first_data_block is set to a very large number, the calculation of the block group can underflow, and trigger a BUG_ON check. Change this to be an ext4_warning so that we don't crash the kernel.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel2.6.25 — 4.14.315+8
▶Debianlinux/linux_kernel< 5.10.191-1+3
▶CVEListV5linux/linuxc9de560ded61faa5b754137b7753da252391c55a — d5bf8f7fb3ee3d99d1303ceb54599ea0599a4a5b+9
▶debiandebian/linux< linux 6.1.37-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2023-53450: In the Linux kernel, the following vulnerability has been resolved: ext4: remove a BUG_ON in ext4_mb_release_group_pa() If a malicious fuzzer overwrit↗2025-10-01
▶
GHSA
GHSA-x72c-72g3-7ffp: In the Linux kernel, the following vulnerability has been resolved: ext4: remove a BUG_ON in ext4_mb_release_group_pa() If a malicious fuzzer overwr↗2025-10-01
▶

📋Vendor Advisories

2
Red Hat
kernel: ext4: remove a BUG_ON in ext4_mb_release_group_pa()↗2025-10-01
▶
Debian
CVE-2023-53450: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: remov...↗2023
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