CVE-2023-53457 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 97.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 1
Description
In the Linux kernel, the following vulnerability has been resolved:
FS: JFS: Fix null-ptr-deref Read in txBegin
Syzkaller reported an issue where txBegin may be called
on a superblock in a read-only mounted filesystem which leads
to NULL pointer deref. This could be solved by checking if
the filesystem is read-only before calling txBegin, and returning
with appropiate error code.
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
▶CVEListV5linux/linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 — a7225e9e09519deb7e0c42eb6070029cc456e84d+8
Patches
🔴Vulnerability Details
2OSV▶
CVE-2023-53457: In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fix null-ptr-deref Read in txBegin Syzkaller reported an issue where txBe↗2025-10-01
GHSA▶
GHSA-gq3m-5wp3-hvhp: In the Linux kernel, the following vulnerability has been resolved:
FS: JFS: Fix null-ptr-deref Read in txBegin
Syzkaller reported an issue where tx↗2025-10-01