CVE-2022-48994
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…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 14th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/05530ef7cf7c7d700f6753f058999b1b5099a026Patch
- https://git.kernel.org/stable/c/13ee8fb5410b740c8dd2867d3557c7662f7dda2dPatch
- https://git.kernel.org/stable/c/15c42ab8d43acb73e2eba361ad05822c0af0ecfaPatch
- https://git.kernel.org/stable/c/2f46e95bf344abc4e74f8158901d32a869e0adb6Patch
- https://git.kernel.org/stable/c/63badfed200219ca656968725f1a43df293ac936Patch
- https://git.kernel.org/stable/c/b38486e82ecb9f3046e0184205f6b61408fc40c9Patch
- https://git.kernel.org/stable/c/e385360705a0b346bdb57ce938249175d0613b8aPatch
- https://git.kernel.org/stable/c/fccd454129f6a0739651f7f58307cdb631fd6e89Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.