CVE-2026-93222signal: avoid shared siginfo namespace rewrites
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7a0cf094944e2540758b7f957eb6846d5126f535 before e015d1ac6b43a23c52c5163299414ae77d7d4ae0; 7a0cf094944e2540758b7f957eb6846d5126f535 builds before 4ee7c4e4719a825052f42f02ec159b5b42b68fbc; from 7a0cf094944e2540758b7f957eb6846d5126f535 before 148b0dae2a1755beb873a2aab51fb191414f068c; 7a0cf094944e2540758b7f957eb6846d5126f535 builds before 6b1de022304ef85284c5933a5fb8492f6f54efc9; 7a0cf094944e2540758b7f957eb6846d5126f535 builds before 03c8761e75d1619906bb503686f9cc1dfc6a67f4; from 7a0cf094944e2540758b7f957eb6846d5126f535 before a246da20c8e4ae4319511c698b9f26ad0ad1769f; from 7a0cf094944e2540758b7f957eb6846d5126f535 before b655c2040ce836afad5643842543567b31f8c11d; from 7a0cf094944e2540758b7f957eb6846d5126f535 before d19cdc167e696714509e87d3f7ae765b6e164589; and 4 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0
- https://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbc
- https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068c
- https://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9
- https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4
- https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769f
- https://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11d
- https://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.