CVE - CVE-2022-48994

CVE-ID
CVE-2022-48994	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/05530ef7cf7c7d700f6753f058999b1b5099a026 URL:https://git.kernel.org/stable/c/05530ef7cf7c7d700f6753f058999b1b5099a026 MISC:https://git.kernel.org/stable/c/13ee8fb5410b740c8dd2867d3557c7662f7dda2d URL:https://git.kernel.org/stable/c/13ee8fb5410b740c8dd2867d3557c7662f7dda2d MISC:https://git.kernel.org/stable/c/15c42ab8d43acb73e2eba361ad05822c0af0ecfa URL:https://git.kernel.org/stable/c/15c42ab8d43acb73e2eba361ad05822c0af0ecfa MISC:https://git.kernel.org/stable/c/2f46e95bf344abc4e74f8158901d32a869e0adb6 URL:https://git.kernel.org/stable/c/2f46e95bf344abc4e74f8158901d32a869e0adb6 MISC:https://git.kernel.org/stable/c/63badfed200219ca656968725f1a43df293ac936 URL:https://git.kernel.org/stable/c/63badfed200219ca656968725f1a43df293ac936 MISC:https://git.kernel.org/stable/c/b38486e82ecb9f3046e0184205f6b61408fc40c9 URL:https://git.kernel.org/stable/c/b38486e82ecb9f3046e0184205f6b61408fc40c9 MISC:https://git.kernel.org/stable/c/e385360705a0b346bdb57ce938249175d0613b8a URL:https://git.kernel.org/stable/c/e385360705a0b346bdb57ce938249175d0613b8a MISC:https://git.kernel.org/stable/c/fccd454129f6a0739651f7f58307cdb631fd6e89 URL:https://git.kernel.org/stable/c/fccd454129f6a0739651f7f58307cdb631fd6e89
Assigning CNA
kernel.org
Date Record Created
20240822	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240822)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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