Answer in brief
CVE-2024-38580 records a High severity (CVSS 7.8) vulnerability in epoll: be better about file lifetimes. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cbfd1088e24ec4c1199756a37cb8e4cd0a4b016e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <559214eb4e5c3d05e69428af2fae2691ba1eb784 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4f65f4defe4e23659275ce5153541cd4f76ce2d2 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <16e3182f6322575eb7c12e728ad3c7986a189d5d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4efaa5acf0a1d2b5947f98abb3acf8bfd966422b | cbfd1088e24ec4c1199756a37cb8e4cd0a4b016e, 559214eb4e5c3d05e69428af2fae2691ba1eb784, 4f65f4defe4e23659275ce5153541cd4f76ce2d2, 16e3182f6322575eb7c12e728ad3c7986a189d5d, 4efaa5acf0a1d2b5947f98abb3acf8bfd966422b |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Jun 19, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: epoll: be better about file lifetimes epoll can call out to vfs_poll() with a file pointer that may race with the last 'fput()'. That would make f_count go down to zero, and while the ep->mtx locking means that the resulting file pointer tear-down will be blocked until the poll returns, it means that f_count is already dead, and any use of it won't actually get a reference to the file any more: it's dead regardless. Make sure we have a valid ref on the file pointer before we call down to vfs_poll() from the epoll routines.
Quoted source text, attributed separately from HOL analysis.