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Function Call with Incorrectly Specified Arguments The advisory has been revoked - it doesn't affect any version of package kernel-debug-modules-internal  (opens in a new tab)

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EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELDEBUGMODULESINTERNAL-12769067
  • published16 Sept 2025
  • disclosed15 Sept 2025
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Introduced: 15 Sep 2025

CVE-2023-53224  (opens in a new tab)
CWE-628  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules-internal package and not the kernel-debug-modules-internal package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

ext4: Fix function prototype mismatch for ext4_feat_ktype

With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG), indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid to help mitigate ROP attacks. If they are not identical, there is a failure at run time, which manifests as either a kernel panic or thread getting killed.

ext4_feat_ktype was setting the "release" handler to "kfree", which doesn't have a matching function prototype. Add a simple wrapper with the correct prototype.

This was found as a result of Clang's new -Wcast-function-type-strict flag, which is more sensitive than the simpler -Wcast-function-type, which only checks for type width mismatches.

Note that this code is only reached when ext4 is a loadable module and it is being unloaded:

CFI failure at kobject_put+0xbb/0x1b0 (target: kfree+0x0/0x180; expected type: 0x7c4aa698) ... RIP: 0010:kobject_put+0xbb/0x1b0 ... Call Trace: <TASK> ext4_exit_sysfs+0x14/0x60 [ext4] cleanup_module+0x67/0xedb [ext4]