genirq/proc: Size interrupt directory names for 10-digit interrupt numbers
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.160, 6.12.114, 6.18.53
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 721255b9826bd11c7a38b585905fc2dd0fb94e52 · fixed in a8adf64fe7fd5d7c476769a043ee56eda7b775ce; From 721255b9826bd11c7a38b585905fc2dd0fb94e52 · fixed in 488bcd7fd3e9a2ad647b71b505a269fdb28753c4; From 721255b9826bd11c7a38b585905fc2dd0fb94e52 · fixed in d4b22fbae70037299e96539c330e4a1054b28a91; From 721255b9826bd11c7a38b585905fc2dd0fb94e52 · fixed in c2c7983c93f5d86962318be7e7298f1bc3feb1a6
- Linux Linux
6.5
- KernelLinux
From 6.5.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.12.114; From 6.13.0 · fixed in 6.18.53