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UBUNTU-CVE-2022-48994

Dashboard / Vulnerabilities / UBUNTU-CVE-2022-48994

UBUNTU-CVE-2022-48994

Published: 21 Oct 2024Last Modified: 5 Oct 2026

Upstream:

Aliases:

Summary:

Details: 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.

Affected packages

Package

Name: linux-azure

Purl: pkg:deb/ubuntu/linux-azure?arch=source&distro=trusty%2Fesm

Affected ranges

Type: ECOSYSTEM

Events:

Introduced- 0

Fixed -4.15.0-1162.177~14.04.1

Affected versions

4.15.0-1023.24~14.04.1

4.15.0-1030.31~14.04.1

4.15.0-1031.32~14.04.1

4.15.0-1032.33~14.04.2

4.15.0-1035.36~14.04.2

4.15.0-1036.38~14.04.2

4.15.0-1037.39~14.04.2

4.15.0-1039.41~14.04.2

4.15.0-1040.44~14.04.1

4.15.0-1041.45~14.04.1

4.15.0-1042.46~14.04.1

4.15.0-1045.49~14.04.1

4.15.0-1046.50~14.04.1

4.15.0-1047.51~14.04.1

4.15.0-1049.54~14.04.1

4.15.0-1050.55~14.04.1

4.15.0-1051.56~14.04.1

4.15.0-1052.57~14.04.1

4.15.0-1055.60~14.04.1

4.15.0-1056.61~14.04.1

4.15.0-1057.62~14.04.1

4.15.0-1059.64~14.04.1

4.15.0-1060.65~14.04.1

4.15.0-1061.66~14.04.1

4.15.0-1063.68~14.04.1

4.15.0-1064.69~14.04.1

4.15.0-1066.71~14.04.1

4.15.0-1067.72~14.04.1

4.15.0-1069.74~14.04.1

4.15.0-1071.76~14.04.1

4.15.0-1074.79~14.04.1

4.15.0-1077.82~14.04.1

4.15.0-1082.92~14.04.1

4.15.0-1083.93~14.04.1

4.15.0-1089.99~14.04.1

4.15.0-1091.101~14.04.1

4.15.0-1092.102~14.04.1

4.15.0-1093.103~14.04.1

4.15.0-1095.105~14.04.1

4.15.0-1096.106~14.04.1

4.15.0-1098.109~14.04.1

4.15.0-1100.111~14.04.1

4.15.0-1102.113~14.04.1

4.15.0-1103.114~14.04.1

4.15.0-1106.118~14.04.1

4.15.0-1108.120~14.04.1

4.15.0-1109.121~14.04.1

4.15.0-1110.122~14.04.1

4.15.0-1111.123~14.04.1

4.15.0-1112.124~14.04.1

4.15.0-1113.126~14.04.1

4.15.0-1114.127~14.04.1

4.15.0-1115.128~14.04.1

4.15.0-1118.131~14.04.1

4.15.0-1121.134~14.04.1

4.15.0-1122.135~14.04.1

4.15.0-1123.136~14.04.1

4.15.0-1124.137~14.04.1

4.15.0-1125.138~14.04.1

4.15.0-1126.139~14.04.1

4.15.0-1127.140~14.04.1

4.15.0-1129.142~14.04.1

4.15.0-1130.143~14.04.1

4.15.0-1131.144~14.04.1

4.15.0-1133.146~14.04.1

4.15.0-1134.147~14.04.1

4.15.0-1136.149~14.04.1

4.15.0-1137.150~14.04.1

4.15.0-1138.151~14.04.1

4.15.0-1139.152~14.04.1

4.15.0-1142.156~14.04.1

4.15.0-1145.160~14.04.1

4.15.0-1146.161~14.04.1

4.15.0-1149.164~14.04.1

4.15.0-1150.165~14.04.1

4.15.0-1151.166~14.04.1

4.15.0-1153.168~14.04.1

4.15.0-1157.172~14.04.2

4.15.0-1158.173~14.04.1

4.15.0-1159.174~14.04.1

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High