CVE-2026-93134printk: Fix possible console use-after-free
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: printk: Fix possible console use-after-free When emitting a record via legacy printing, it is possible that a handover to another legacy printing context occurs. When a context has performed a handover, the console SRCU read lock is released and the pointer to the console struct might now be invalid. Therefore, after calling nbcon_legacy_emit_next_record() or console_emit_next_record(), it is necessary to check if a handover occurred _before_ further @con usage. Sashiko pointed out that console_flush_one_record() was not doing this. In console_flush_one_record(), after emitting a record, move the further usage of @con after the handover check.
- 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
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c158834b223fbfab3a14855ac203b8d9cddbbefd before f0104a7b730de32eefb3d4a27279592b5504ad59; from c158834b223fbfab3a14855ac203b8d9cddbbefd before fbf9bb81b21537ede387a31cc586f1d2ce66a74e; from c158834b223fbfab3a14855ac203b8d9cddbbefd before 8f194dee0c0d1223255bae1429e1939882f540fc; from c158834b223fbfab3a14855ac203b8d9cddbbefd before 36630cafbeede0b64c370edb2f7b4094327ee1e0 | CNA record |
References
- https://git.kernel.org/stable/c/f0104a7b730de32eefb3d4a27279592b5504ad59
- https://git.kernel.org/stable/c/fbf9bb81b21537ede387a31cc586f1d2ce66a74e
- https://git.kernel.org/stable/c/8f194dee0c0d1223255bae1429e1939882f540fc
- https://git.kernel.org/stable/c/36630cafbeede0b64c370edb2f7b4094327ee1e0
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.