CVE-2026-43074
- Source
- https://cve.org/CVERecord?id=CVE-2026-43074
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43074.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-43074
- Downstream
- Related
- Published
- 2026-05-06T07:21:58.210Z
- Modified
- 2026-07-07T08:38:50.954992394Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- eventpoll: defer struct eventpoll free to RCU grace period
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
eventpoll: defer struct eventpoll free to RCU grace period
In certain situations, ep_free() in eventpoll.c will kfree the epi->ep eventpoll struct while it still being used by another concurrent thread. Defer the kfree() to an RCU callback to prevent UAF.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43074.json" }- References
-
- https://git.kernel.org/stable/c/07712db80857d5d09ae08f3df85a708ecfc3b61f
- https://git.kernel.org/stable/c/5b1173b165421561db29f30afc7e97d940a398a9
- https://git.kernel.org/stable/c/7e8083f5eeedab0f460063b9c2c14c9a4e71a427
- https://git.kernel.org/stable/c/902120be4f44947df6311002addc7faf69bdbff1
- https://git.kernel.org/stable/c/a6566cd33f6f967a7651ebf2ce0dd31572e319cf
- https://git.kernel.org/stable/c/a6d57084372161f86660bc4607784420e00efe2c
- https://git.kernel.org/stable/c/ae0bb9c1fb7c2594519aeeb096cf2c3b7837b322
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43074.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43074
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introducedf2451def095c1743adcfcb0cb5dadc86034e162aFixed902120be4f44947df6311002addc7faf69bdbff1
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda1f93804449d13f97dabd4b996817de4bf1ed67aFixeda6d57084372161f86660bc4607784420e00efe2c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced58c9b016e12855286370dfb704c08498edbc857aFixeda6566cd33f6f967a7651ebf2ce0dd31572e319cfFixed5b1173b165421561db29f30afc7e97d940a398a9Fixed7e8083f5eeedab0f460063b9c2c14c9a4e71a427Fixedae0bb9c1fb7c2594519aeeb096cf2c3b7837b322Fixed07712db80857d5d09ae08f3df85a708ecfc3b61f