Messages in this thread Patch in this message | | | From | Chen Jun <> | Subject | [PATCH] time: Fix overwrite err unexpected in clock_adjtime32 | Date | Mon, 12 Apr 2021 12:45:51 +0000 |
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the correct error is covered by put_old_timex32.
Fixes: f1f1d5ebd10f ("posix-timers: Introduce a syscall for clock tuning.") Signed-off-by: Chen Jun <chenjun102@huawei.com> --- kernel/time/posix-timers.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index bf540f5a..dd5697d 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -1191,8 +1191,8 @@ SYSCALL_DEFINE2(clock_adjtime32, clockid_t, which_clock, err = do_clock_adjtime(which_clock, &ktx); - if (err >= 0) - err = put_old_timex32(utp, &ktx); + if (err >= 0 && put_old_timex32(utp, &ktx)) + return -EFAULT; return err; } -- 2.9.4
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