* [PATCH -mm 2/3] ELF, coredump: delete duplicated overflow check
@ 2019-12-22 14:40 Alexey Dobriyan
0 siblings, 0 replies; only message in thread
From: Alexey Dobriyan @ 2019-12-22 14:40 UTC (permalink / raw)
To: akpm; +Cc: linux-kernel
array_size() macro will do overflow check anyway.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
fs/binfmt_elf.c | 2 --
1 file changed, 2 deletions(-)
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2257,8 +2257,6 @@ static int elf_core_dump(struct coredump_params *cprm)
dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE);
- if (segs - 1 > ULONG_MAX / sizeof(*vma_filesz))
- goto end_coredump;
vma_filesz = kvmalloc(array_size(sizeof(*vma_filesz), (segs - 1)),
GFP_KERNEL);
if (ZERO_OR_NULL_PTR(vma_filesz))
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2019-12-22 14:40 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-22 14:40 [PATCH -mm 2/3] ELF, coredump: delete duplicated overflow check Alexey Dobriyan
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).