CVE-2024-38580
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-38580
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-38580.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-38580
- Downstream
- Related
- Published
- 2024-06-19T13:37:37.840Z
- Modified
- 2025-11-28T02:34:06.941382Z
- Summary
- epoll: be better about file lifetimes
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
epoll: be better about file lifetimes
epoll can call out to vfspoll() with a file pointer that may race with the last 'fput()'. That would make fcount 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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38580.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/16e3182f6322575eb7c12e728ad3c7986a189d5d
- https://git.kernel.org/stable/c/4efaa5acf0a1d2b5947f98abb3acf8bfd966422b
- https://git.kernel.org/stable/c/4f65f4defe4e23659275ce5153541cd4f76ce2d2
- https://git.kernel.org/stable/c/559214eb4e5c3d05e69428af2fae2691ba1eb784
- https://git.kernel.org/stable/c/cbfd1088e24ec4c1199756a37cb8e4cd0a4b016e
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38580.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-38580
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixedcbfd1088e24ec4c1199756a37cb8e4cd0a4b016eFixed559214eb4e5c3d05e69428af2fae2691ba1eb784Fixed4f65f4defe4e23659275ce5153541cd4f76ce2d2Fixed16e3182f6322575eb7c12e728ad3c7986a189d5dFixed4efaa5acf0a1d2b5947f98abb3acf8bfd966422b
Linux / Kernel
Package
- Name
- Kernel