5.5

CVE-2022-48994

ALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.9.336
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.302
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.269
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.227
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.159
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.83
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.13
Linux ≫ Linux Kernel Version6.1 Updaterc1
Linux ≫ Linux Kernel Version6.1 Updaterc2
Linux ≫ Linux Kernel Version6.1 Updaterc3
Linux ≫ Linux Kernel Version6.1 Updaterc4
Linux ≫ Linux Kernel Version6.1 Updaterc5
Linux ≫ Linux Kernel Version6.1 Updaterc6
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.142
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
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