Description
The fuse_direct_io function in fs/fuse/file.c in the fuse subsystem in the Linux kernel before 2.6.32-rc7 might allow attackers to cause a denial of service (invalid pointer dereference and OOPS) via vectors possibly related to a memory-consumption attack.
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 4.0 | linux-2.6 | 2.6.18.dfsg.1-26etch2 | DSA-2003-1 |
| Debian 4.0 | linux-2.6.24 | 2.6.24-6~etchnhalf.9etch3 | DSA-2005-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +11 | 2.6.18-164.11.1.el5 | RHSA-2010:0046 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 1 | kernel-rt +9 | 2.6.24.7-146.el5rt | RHSA-2010:0041 |
Advisories 4
- RHSA-2010:0046 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2010:0041 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-2003-1 linux-2.6 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2005-1 linux-2.6.24 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f60311d5f7670d9539b424e4ed8b5c0872fc9e83
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc7
- SUSE-SA:2009:061 vendor-advisory
- SUSE-SA:2010:001 vendor-advisory
- 37069 vdb-entry
- [oss-security] 20091119 CVE request: kernel: fuse: prevent fuse_put_request on invalid pointer mailing-list
- kernel-fusedirectio-dos(54358) vdb-entry
- http://support.avaya.com/css/P8/documents/100073666
- SUSE-SA:2010:012 vendor-advisory
- 37909 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=538734
- SUSE-SA:2009:064 vendor-advisory
- oval:org.mitre.oval:def:6955 vdb-entry signature
- RHSA-2010:0095 vendor-advisory
- oval:org.mitre.oval:def:10516 vdb-entry signature
- RHSA-2010:0046 vendor-advisory
- DSA-2005 vendor-advisory
- [oss-security] 20091124 Re: CVE request: kernel: fuse: prevent fuse_put_request on invalid pointer mailing-list
- RHSA-2010:0041 vendor-advisory
- 38017 third-party-advisory