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authorKonstantin Khlebnikov <khlebnikov@openvz.org>2012-12-14 12:03:10 +0100
committerBorislav Petkov <bpetkov@suse.de>2013-01-07 17:42:58 +0100
commit311bd84247ee0bedae6cdfbfc5e2c3450f9decd1 (patch)
tree23e7218b9e23c33ca9e8534ddbb05664f896fab3 /drivers/edac/Kconfig
parentLinux 3.8-rc2 (diff)
downloadlinux-311bd84247ee0bedae6cdfbfc5e2c3450f9decd1.tar.xz
linux-311bd84247ee0bedae6cdfbfc5e2c3450f9decd1.zip
EDAC: Fix kernel panic on module unloading
This patch fixes use-after-free and double-free bugs in edac_mc_sysfs_exit(). mci_pdev has single reference and put_device() calls mc_attr_release() which calls kfree(). The following device_del() works with already released memory. An another kfree() in edac_mc_sysfs_exit() releses the same memory again. Great. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: stable@vger.kernel.org # 3.[67] Cc: Denis Kirjanov <kirjanov@gmail.com> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Link: http://lkml.kernel.org/r/20121214110310.11019.21098.stgit@zurg Signed-off-by: Borislav Petkov <bp@alien8.de>
Diffstat (limited to 'drivers/edac/Kconfig')
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