CVE-2023-53457
FS: JFS: Fix null-ptr-deref Read in txBegin
Severity Score
7.1
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
This update provides the initial livepatch for this kernel update. This update does not contain any fixes and will be updated with livepatches later.
*Credits:
N/A
CVSS Scores
Attack Vector
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Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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Attack Vector
Attack Complexity
Authentication
Confidentiality
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* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2025-09-17 CVE Reserved
- 2025-10-01 CVE Published
- 2026-01-05 CVE Updated
- 2026-02-27 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 4.14.324 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 4.14.324" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 4.19.293 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 4.19.293" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 5.4.255 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 5.4.255" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 5.10.192 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 5.10.192" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 5.15.123 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 5.15.123" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 6.1.42 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 6.1.42" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 6.4.7 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 6.4.7" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 6.5 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 6.5" | en |
Affected
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