Description
The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows local users to cause a denial of service (prevention of file creation and removal) via a series of splice system calls that trigger a deadlock between the generic_file_splice_write, splice_from_pipe, and ocfs2_file_splice_write functions.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Canonical / Ubuntu Linux8.04 – 8.04
- Canonical / Ubuntu Linux8.10 – 8.10
- Canonical / Ubuntu Linux9.04 – 9.04
- Canonical / Ubuntu Linux6.06 – 6.06
- Debian / debian_linux4.0 – 4.0
- Linux / Linux kernel2.6.19
- Linux / Linux kernel2.6.30 – 2.6.30
- Linux / Linux kernel2.6.30 – 2.6.30
- openSUSE / opensuse10.3 – 10.3
- openSUSE / opensuse11.1 – 11.1
- SUSE / linux_enterprise11.0 – 11.0
- SUSE / linux_enterprise_desktop11 – 11
- SUSE / linux_enterprise_server11 – 11
References
- VENDOR_ADVISORYhttp://secunia.com/advisories/35390
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2009:135
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2009:148
- VENDOR_ADVISORYhttp://secunia.com/advisories/35656
- VENDOR_ADVISORYhttp://www.debian.org/security/2009/dsa-1844
- MISChttp://securitytracker.com/id?1022307
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2009/06/02/2
- MISChttp://www.redhat.com/support/errata/RHSA-2009-1157.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/36051
- MISChttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=7bfac9ecf0585962fe13584f5cf526d8c8e76f17
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/usn-793-1
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2009/05/30/1
- MISChttp://www.securityfocus.com/bid/35143
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2009/06/03/1
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2009/05/29/2
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/35394
- VENDOR_ADVISORYhttp://secunia.com/advisories/35847