5.5

CVE-2022-48994: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2022-48994DEBIAN-CVE-2022-48994
Published 21-10-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2022-48994 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 9
SUSE-SU-2024:3983-1SUSE-SU-2024:3985-1SUSE-SU-2024:4082-1SUSE-SU-2024:4131-1SUSE-SU-2024:4364-1USN-7332-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu114 products
  • linux< 3.13.0-204.255 | < 4.4.0-266.300 | < 4.15.0-206.217 | < 5.4.0-144.161 | < 5.15.0-67.74
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1141.147 | < 4.4.0-1179.194 | < 4.15.0-1151.164 | < 5.4.0-1097.105 | < 5.15.0-1031.35
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b38486e82ecb9f3046e0184205f6b61408fc40c9 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e385360705a0b346bdb57ce938249175d0613b8a | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2f46e95bf344abc4e74f8158901d32a869e0adb6 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 63badfed200219ca656968725f1a43df293ac936 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 15c42ab8d43acb73e2eba361ad05822c0af0ecfa | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < fccd454129f6a0739651f7f58307cdb631fd6e89 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 13ee8fb5410b740c8dd2867d3557c7662f7dda2d | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 05530ef7cf7c7d700f6753f058999b1b5099a026 | 2.6.12
  • linux_kernel< 4.9.336 | ≥ 4.10, < 4.14.302 | ≥ 4.15, < 4.19.269 | ≥ 4.20, < 5.4.227 | ≥ 5.5, < 5.10.159 | ≥ 5.11, < 5.15.83 | ≥ 5.16, < 6.0.13 | 6.1:rc1 | 6.1:rc2 | 6.1:rc3 | 6.1:rc4 | 6.1:rc5 | 6.1:rc6
Debian1 product
  • linux< 6.1.4-1

3 vendors · 117 products

References

16 links
Show all 16 references