Messages in this thread | | | Date | Wed, 10 May 2023 18:15:41 +0300 | Subject | Re: [PATCH] fs/coredump: open coredump file in O_WRONLY instead of O_RDWR | From | Vladimir Sementsov-Ogievskiy <> |
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Gently ping.
Is there any interest?
On 20.04.23 15:04, Vladimir Sementsov-Ogievskiy wrote: > This makes it possible to make stricter apparmor profile and don't > allow the program to read any coredump in the system. > > Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> > --- > fs/coredump.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/coredump.c b/fs/coredump.c > index 5df1e6e1eb2b..8f263a389175 100644 > --- a/fs/coredump.c > +++ b/fs/coredump.c > @@ -646,7 +646,7 @@ void do_coredump(const kernel_siginfo_t *siginfo) > } else { > struct mnt_idmap *idmap; > struct inode *inode; > - int open_flags = O_CREAT | O_RDWR | O_NOFOLLOW | > + int open_flags = O_CREAT | O_WRONLY | O_NOFOLLOW | > O_LARGEFILE | O_EXCL; > > if (cprm.limit < binfmt->min_coredump)
-- Best regards, Vladimir
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