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authorTobias Klauser <tklauser@distanz.ch>2013-05-12 12:33:53 +0200
committerTobias Klauser <tklauser@distanz.ch>2013-05-12 12:33:53 +0200
commit10a80a61d67516c0ba4c13a7c07e9ebfa6fab9c5 (patch)
treef69e0c17e7170477a01e2f73c3d90483f4e4d46a /ifpps/.gitignore
parent21adfd2ba4324bb8575b17ecd76c0f3b3988246e (diff)
dissector: lldp: NULL check before dereference
Check return value of pkt_pull before dereferencing it (even though we check the packet length before and pkt_pull _should_ never return NULL). This was discovered by the coverity scanner. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'ifpps/.gitignore')
0 files changed, 0 insertions, 0 deletions
amp;(&sighand->siglock)->rlock){-.....}, at: [<ffffffffbd0a1bc6>] __lock_task_sighand+0xb6/0x2c0 but this lock took another, HARDIRQ-unsafe lock in the past: (ucounts_lock){+.+...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &(&sighand->siglock)->rlock --> &(&tty->ctrl_lock)->rlock --> ucounts_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(ucounts_lock); local_irq_disable(); lock(&(&sighand->siglock)->rlock); lock(&(&tty->ctrl_lock)->rlock); <Interrupt> lock(&(&sighand->siglock)->rlock); *** DEADLOCK *** This patch removes a dependency between rlock and ucount_lock. Fixes: f333c700c610 ("pidns: Add a limit on the number of pid namespaces") Cc: stable@vger.kernel.org Signed-off-by: Andrei Vagin <avagin@openvz.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'net/appletalk/Makefile')