The patch titled
isdn: guard against a potential NULL pointer dereference in old_capi_manufacturer()
has been added to the -mm tree. Its filename is
isdn-guard-against-a-potential-null-pointer-dereference-in-old_capi_manufacturer.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: isdn: guard against a potential NULL pointer dereference in old_capi_manufacturer()
From: Jesper Juhl <jesper.juhl@xxxxxxxxx>
In drivers/isdn/capi/kcapi.c::old_capi_manufacturer(), if the call to
get_capi_ctr_by_nr(ldef.contr); in line 823 returns NULL, then we'll be
dereferencing a NULL pointer in the very next line.
(Found by Coverity checker as bug #402)
Signed-off-by: Jesper Juhl <jesper.juhl@xxxxxxxxx>
Acked-by: Karsten Keil <kkeil@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/isdn/capi/kcapi.c | 2 ++
1 files changed, 2 insertions(+)
diff -puN drivers/isdn/capi/kcapi.c~isdn-guard-against-a-potential-null-pointer-dereference-in-old_capi_manufacturer drivers/isdn/capi/kcapi.c
--- a/drivers/isdn/capi/kcapi.c~isdn-guard-against-a-potential-null-pointer-dereference-in-old_capi_manufacturer
+++ a/drivers/isdn/capi/kcapi.c
@@ -821,6 +821,8 @@ static int old_capi_manufacturer(unsigne
return -EFAULT;
}
card = get_capi_ctr_by_nr(ldef.contr);
+ if (!card)
+ return -EINVAL;
card = capi_ctr_get(card);
if (!card)
return -ESRCH;
_
Patches currently in -mm which might be from jesper.juhl@xxxxxxxxx are
git-acpi.patch
git-alsa.patch
au88x0-mem-leak-fix-in-snd_vortex_create.patch
git-agpgart.patch
fix-use-after-free--double-free-bug-in-amd_create_gatt_pages--amd_free_gatt_pages.patch
powerpc-clean-out-a-bunch-of-duplicate-includes.patch
git-dvb.patch
git-gfs2-nmw.patch
clean-up-duplicate-includes-in-drivers-input.patch
scripts-ver_linux-correct-printing-of-binutils-version.patch
git-mtd.patch
git-ubi.patch
clean-up-duplicate-includes-in-drivers-net.patch
clean-up-duplicate-includes-in-drivers-atm.patch
clean-up-duplicate-includes-in-net-atm.patch
clean-up-duplicate-includes-in-net-ipv4.patch
clean-up-duplicate-includes-in-net-ipv6.patch
clean-up-duplicate-includes-in-net-sched.patch
clean-up-duplicate-includes-in-net-sunrpc.patch
clean-up-duplicate-includes-in-net-tipc.patch
clean-up-duplicate-includes-in-net-xfrm.patch
dccp-fix-memory-leak-and-clean-up-style-dccp_feat_empty_confirm.patch
clean-up-duplicate-includes-in-include-linux-nfs_fsh.patch
clean-up-duplicate-includes-in-fs-ntfs.patch
sh64-arch-sh64-kernel-signalh-duplicate-include-removal.patch
clean-up-duplicate-includes-in-drivers-scsi.patch
mpt-fusion-fix-two-potential-mem-leaks.patch
clean-up-duplicate-includes-in-drivers-block.patch
clean-up-duplicate-includes-in-arch-i386-xen.patch
git-xfs.patch
clean-up-duplicate-includes-in-include-linux-memory_hotplugh.patch
clean-up-duplicate-includes-in-mm.patch
clean-up-duplicate-includes-in-drivers-char.patch
clean-up-duplicate-includes-in-drivers-w1.patch
clean-up-duplicate-includes-in-fs.patch
clean-up-duplicate-includes-in-fs-ecryptfs.patch
clean-up-duplicate-includes-in-kernel.patch
clean-up-duplicate-includes-in-drivers-spi.patch
floppy-do-a-very-minimal-style-cleanup-of-the-floppy-driver.patch
floppy-remove-dead-commented-out-code-from-floppy-driver.patch
floppy-remove-register-keyword-use-from-floppy-driver.patch
clean-up-duplicate-includes-in-documentation.patch
fix-several-memory-leaks-in-cr_backlight_probe-take2.patch
fix-a-potential-null-pointer-deref-in-xfs-on-failed-mount.patch
improve-scripts-gcc-versionsh-output-a-bit-when-called-without-args.patch
fix-a-potential-null-pointer-deref-in-the-aic7xxx-ahc_print_register-function.patch
documentation-sysrq-description-of-h-slightly-inaccurate.patch
fix-possible-null-deref-on-low-memory-condition-in-capidrvcsend_message.patch
mga_dma-return-err-not-just-zero-from-mga_do_cleanup_dma.patch
isdn-guard-against-a-potential-null-pointer-dereference-in-old_capi_manufacturer.patch
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