5.5

CVE-2026-43058: media: vidtv: fix pass-by-value structs causing MSAN warnings

Modified
AliasesUBUNTU-CVE-2026-43058DEBIAN-CVE-2026-43058
Published 02-05-2026Last modified 14-06-2026

Vulnerability summary

CVE-2026-43058 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.12%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 47 · Related 45
MGASA-2026-0108MGASA-2026-0110OPENSUSE-SU-2026:10793-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1

Timeline

  1. 02-05-2026
    PublishedVulnerability first disclosed.
  2. 14-06-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: media: vidtv: fix pass-by-value structs causing MSAN warnings vidtv_ts_null_write_into() and vidtv_ts_pcr_write_into() take their argument structs by value, causing MSAN to report uninit-value warnings. While only vidtv_ts_null_write_into() has triggered a report so far, both functions share the same issue. Fix by passing both structs by const pointer instead, avoiding the stack copy of the struct along with its MSAN shadow and origin metadata. The functions do not modify the structs, which is enforced by the const qualifier.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.17% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu146 products
  • linux< 5.15.0-186.196 | < 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1112.119 | < 6.8.0-1061.64 | All versions (No fix recorded) | < 7.0.0-1008.8
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < a876d72ceba7fe5444005239f363c105767e0ecf | ≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < a73f84a30975e6c4ae06efd500d31c82564dba10 | ≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < c034d8094fee474eb94142c17643eee2919079b7 | ≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < e3957eb26a3d570aefc6bb184fa8b8a1e9a4e508 | ≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < be57e52e27c7cbfb400a8f255e475cbcff242baa | ≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < 6d75a9ec5bdb8cf8382eaf8f8fe831ba7d58a9d4 | ≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < 57b01d945ed68cebe486d495dadc4901a96d3aaa | ≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < 1b2820c8a9887981634020db19f1a2425558b88e | ≥ f90cf6079bf67988f8b1ad1ade70fc89d0080905, < 5f8e73bde67e931468bc2a1860d78d72f0c6ba41 | 5.10
  • linux_kernel≥ 5.10, < 6.6.136 | ≥ 6.7, < 6.12.83 | ≥ 6.13, < 6.18.24 | ≥ 6.19, < 6.19.14 | ≥ 7.0, < 7.0.1
Debian1 product
  • linux< 6.1.176-1 | < 6.12.85-1 | < 6.19.14-1

3 vendors · 149 products

References

45 links
Show all 45 references