Arturo Giusti 21bf141458 udf: Fix NULL pointer dereference in udf_symlink function ... [ Upstream commit fa236c2b2d4436d9f19ee4e5d5924e90ffd7bb43 ] In function udf_symlink, epos.bh is assigned with the value returned by udf_tgetblk. The function udf_tgetblk is defined in udf/misc.c and returns the value of sb_getblk function that could be NULL. Then, epos.bh is used without any check, causing a possible NULL pointer dereference when sb_getblk fails. This fix adds a check to validate the value of epos.bh. Link: https://bugzilla.kernel.org/show_bug.cgi?id=213083 Signed-off-by: Arturo Giusti <koredump@protonmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-07-19 09:44:40 +02:00
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balloc.c
dir.c
directory.c
ecma_167.h
file.c
ialloc.c
inode.c
Kconfig
lowlevel.c
Makefile
misc.c
namei.c	udf: Fix NULL pointer dereference in udf_symlink function	2021-07-19 09:44:40 +02:00
osta_udf.h
partition.c
super.c
symlink.c
truncate.c
udf_i.h
udf_sb.h
udfdecl.h
udfend.h
udftime.c
unicode.c