In the Linux kernel, the following vulnerability has been resolved:

signal: avoid shared siginfo namespace rewrites

send_signal_locked() rewrites sender ids for the target namespace. Group
sends reuse the same siginfo, so one recipient can affect the next.

Copy the siginfo before changing it.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
7a0cf094944e2540758b7f957eb6846d5126f535 affected < e015d1ac6b43a23c52c5163299414ae77d7d4ae0
7a0cf094944e2540758b7f957eb6846d5126f535 affected < 4ee7c4e4719a825052f42f02ec159b5b42b68fbc
7a0cf094944e2540758b7f957eb6846d5126f535 affected < 148b0dae2a1755beb873a2aab51fb191414f068c
7a0cf094944e2540758b7f957eb6846d5126f535 affected < 6b1de022304ef85284c5933a5fb8492f6f54efc9
7a0cf094944e2540758b7f957eb6846d5126f535 affected < 03c8761e75d1619906bb503686f9cc1dfc6a67f4
7a0cf094944e2540758b7f957eb6846d5126f535 affected < a246da20c8e4ae4319511c698b9f26ad0ad1769f
7a0cf094944e2540758b7f957eb6846d5126f535 affected < b655c2040ce836afad5643842543567b31f8c11d
7a0cf094944e2540758b7f957eb6846d5126f535 affected < d19cdc167e696714509e87d3f7ae765b6e164589
e897dd22800f02bd48aefb1511fff0b2ce96e94c affected —
2f0e9eed11ca778d0ec5507a739c28472fd4ca20 affected —
5.1.20 affected < 5.2
5.2.3 affected < 5.3
Linux Linux affected
Version Status Constraints
5.3 affected —
0 unaffected < 5.3
5.10.270 unaffected ≤ 5.10.*
5.15.221 unaffected ≤ 5.15.*
6.1.188 unaffected ≤ 6.1.*
6.6.157 unaffected ≤ 6.6.*
6.12.109 unaffected ≤ 6.12.*
6.18.50 unaffected ≤ 6.18.*
7.2.4 unaffected ≤ 7.2.*
7.3-rc1 unaffected ≤ *

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4 cve-icon cve-icon
https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068c cve-icon cve-icon
https://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbc cve-icon cve-icon
https://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9 cve-icon cve-icon
https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769f cve-icon cve-icon
https://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11d cve-icon cve-icon
https://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589 cve-icon cve-icon
https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0 cve-icon cve-icon
History

Thu, 24 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: signal: avoid shared siginfo namespace rewrites send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next. Copy the siginfo before changing it.
Title signal: avoid shared siginfo namespace rewrites
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-24T15:21:04.961Z

Reserved: 2026-09-17T16:02:15.094Z

Link: CVE-2026-93222

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-24T16:17:17.437

Modified: 2026-09-24T16:17:17.437

Link: CVE-2026-93222

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.