Description
The io_submit_one function in fs/aio.c in the Linux kernel before 2.6.23 allows local users to cause a denial of service (NULL pointer dereference) via a crafted io_submit system call with an IOCB_FLAG_RESFD flag.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-194.26.1.el5 | RHSA-2010:0839 |
Advisories 1
- RHSA-2010:0839 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console mailing-list
- 46397 third-party-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=87e2831c3fa39cbf6f7ab676bb5aef039b9659e2
- 1024708 vdb-entry
- RHSA-2010:0839 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=631716
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.23
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html