CVE-2026-97503genirq/proc: Size interrupt directory names for 10-digit interrupt numbers
- —Not scoredno CVSS score yet
- 0.16%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: genirq/proc: Size interrupt directory names for 10-digit interrupt numbers /proc/irq/<n>/ directory names are built in `char name[10]` buffers with `sprintf(name, "%u", irq)`. Ten-digit IRQ numbers already need 11 bytes including the trailing NUL, and current sparse-IRQ configurations allow interrupt numbers in that range. Size the temporary name buffer for the current decimal form and switch to bounded formatting when creating or removing the proc entry.
Timeline
ID reserved
By Linux
Published
- 27 days later
· 27 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 721255b9826bd11c7a38b585905fc2dd0fb94e52 – < a8adf64fe7fd5d7c476769a043ee56eda7b775ce
- affected 721255b9826bd11c7a38b585905fc2dd0fb94e52 – < 488bcd7fd3e9a2ad647b71b505a269fdb28753c4
- affected 721255b9826bd11c7a38b585905fc2dd0fb94e52 – < d4b22fbae70037299e96539c330e4a1054b28a91
- affected 721255b9826bd11c7a38b585905fc2dd0fb94e52 – < c2c7983c93f5d86962318be7e7298f1bc3feb1a6
- affected 6.5
- unaffected < 6.5
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2 – ≤ *
References
References4
- https://git.kernel.org/stable/c/a8adf64fe7fd5d7c476769a043ee56eda7b775ce (opens in a new tab)
- https://git.kernel.org/stable/c/488bcd7fd3e9a2ad647b71b505a269fdb28753c4 (opens in a new tab)
- https://git.kernel.org/stable/c/d4b22fbae70037299e96539c330e4a1054b28a91 (opens in a new tab)
- https://git.kernel.org/stable/c/c2c7983c93f5d86962318be7e7298f1bc3feb1a6 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86101 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97503)Record last updated .