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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-48994 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event 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. seq_copy_in_user() and seq_copy_in_kernel() did not have prototypes matching snd_seq_dump_func_t. Adjust this and remove the casts. There are not resulting binary output differences. 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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/05530ef7cf7c7d700f6753f058999b1b5099a026 Patch 
https://git.kernel.org/stable/c/13ee8fb5410b740c8dd2867d3557c7662f7dda2d Patch 
https://git.kernel.org/stable/c/15c42ab8d43acb73e2eba361ad05822c0af0ecfa Patch 
https://git.kernel.org/stable/c/2f46e95bf344abc4e74f8158901d32a869e0adb6 Patch 
https://git.kernel.org/stable/c/63badfed200219ca656968725f1a43df293ac936 Patch 
https://git.kernel.org/stable/c/b38486e82ecb9f3046e0184205f6b61408fc40c9 Patch 
https://git.kernel.org/stable/c/e385360705a0b346bdb57ce938249175d0613b8a Patch 
https://git.kernel.org/stable/c/fccd454129f6a0739651f7f58307cdb631fd6e89 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-48994
NVD Published Date:
10/21/2024
NVD Last Modified:
11/07/2024
Source:
kernel.org