CVE-2023-54192
Unknown Unknown - Not Provided

Null Pointer Dereference in Linux f2fs Causes Kernel Panic

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix null pointer panic in tracepoint in __replace_atomic_write_block We got a kernel panic if old_addr is NULL. https://bugzilla.kernel.org/show_bug.cgi?id=217266 BUG: kernel NULL pointer dereference, address: 0000000000000000 Call Trace: <TASK> f2fs_commit_atomic_write+0x619/0x990 [f2fs a1b985b80f5babd6f3ea778384908880812bfa43] __f2fs_ioctl+0xd8e/0x4080 [f2fs a1b985b80f5babd6f3ea778384908880812bfa43] ? vfs_write+0x2ae/0x3f0 ? vfs_write+0x2ae/0x3f0 __x64_sys_ioctl+0x91/0xd0 do_syscall_64+0x5c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f69095fe53f

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Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2023-54192
EUVD
EUVD-2023-60449

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
linux f2fs *
linux kernel *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a null pointer dereference in the Linux kernel's f2fs filesystem code, specifically in the tracepoint in __replace_atomic_write_block. It causes a kernel panic when the old_addr pointer is NULL, leading to a crash of the system.

Impact Analysis

This vulnerability can cause the Linux kernel to panic and crash, resulting in a denial of service. Systems using the affected f2fs filesystem may become unstable or unavailable due to this issue.

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