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CVE-2023-53457— FS: JFS: Fix null-ptr-deref Read in txBegin

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查文件系统是否只读，可能导致空指针取消引用。

AI Predicted 4.4 Difficulty: Easy EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< a7225e9e09519deb7e0c42eb6070029cc456e84d affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 1b4c144767736221cad92c132f72b3c6ed06a0ea affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3e94d0d378d2754b26fc54b429582553f7b53e15 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< fd2db13fb72ff18c633a48229589d42ceb89d1f8 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 47cfdc338d674d38f4b2f22b7612cc6a2763ba27 affected
… +10 more rows
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I. Basic Information for CVE-2023-53457

Vulnerability Information
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Vulnerability Title
FS: JFS: Fix null-ptr-deref Read in txBegin
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查文件系统是否只读，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ a7225e9e09519deb7e0c42eb6070029cc456e84d -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2023-53457

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III. Intelligence Information for CVE-2023-53457

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Same Patch Batch · Linux · 2025-10-01 · 169 CVEs total

CVE-2023-53517 9.8 CRITICAL tipc: do not update mtu if msg_max is too small in mtu negotiation
CVE-2023-53454 8.8 HIGH HID: multitouch: Correct devm device reference for hidinput input_dev name
CVE-2025-39918 8.8 HIGH wifi: mt76: fix linked list corruption
CVE-2025-39919 8.8 HIGH wifi: mt76: mt7996: add missing check for rx wcid entries
CVE-2022-50442 8.4 HIGH fs/ntfs3: Validate buffer length while parsing index
CVE-2023-53493 8.4 HIGH accel/qaic: tighten bounds checking in decode_message()
CVE-2023-53465 7.8 HIGH soundwire: qcom: fix storing port config out-of-bounds
CVE-2023-53485 7.8 HIGH fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev
CVE-2022-50440 7.8 HIGH drm/vmwgfx: Validate the box size for the snooped cursor
CVE-2022-50454 7.8 HIGH drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()
CVE-2025-39924 7.8 HIGH erofs: fix invalid algorithm for encoded extents
CVE-2023-53510 7.8 HIGH scsi: ufs: core: Fix handling of lrbp->cmd
CVE-2025-39927 7.8 HIGH ceph: fix race condition validating r_parent before applying state
CVE-2023-53506 7.8 HIGH udf: Do not bother merging very long extents
CVE-2022-50421 7.8 HIGH rpmsg: char: Avoid double destroy of default endpoint
CVE-2022-50437 7.8 HIGH drm/msm/hdmi: fix memory corruption with too many bridges
CVE-2023-53495 7.8 HIGH net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc()
CVE-2023-53494 7.8 HIGH crypto: xts - Handle EBUSY correctly
CVE-2022-50432 7.8 HIGH kernfs: fix use-after-free in __kernfs_remove
CVE-2023-53492 7.8 HIGH netfilter: nf_tables: do not ignore genmask when looking up chain by id

Showing top 20 of 169 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53457

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