Explain CVE-2009-1961
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.
Affected Products: n/a
References: [{'name': '35390', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35390'}, {'name': 'MDVSA-2009:135', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2009:135'}, {'name': 'MDVSA-2009:148', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2009:148'}, {'name': '35656', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35656'}, {'name': 'DSA-1844', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2009/dsa-1844'}, {'name': '1022307', 'tags': ['vdb-entry', 'x_refsource_SECTRACK'], 'url': 'http://securitytracker.com/id?1022307'}, {'name': '[oss-security] 20090602 Re: CVE request: kernel: splice local denial of service', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2009/06/02/2'}, {'name': 'RHSA-2009:1157', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2009-1157.html'}, {'name': 'SUSE-SA:2009:030', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html'}, {'name': '36051', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/36051'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=7bfac9ecf0585962fe13584f5cf526d8c8e76f17'}, {'name': 'SUSE-SA:2009:031', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html'}, {'name': 'USN-793-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/usn-793-1'}, {'name': '[oss-security] 20090530 Re: CVE request: kernel: splice local denial of service', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2009/05/30/1'}, {'name': '35143', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/35143'}, {'name': '[oss-security] 20090603 Re: CVE request: kernel: splice local denial of service', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2009/06/03/1'}, {'name': '[oss-security] 20090529 CVE request: kernel: splice local denial of service', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2009/05/29/2'}, {'name': 'SUSE-SA:2009:038', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html'}, {'name': '35394', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35394'}, {'name': '35847', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35847'}]
CVE State: PUBLISHED