Messages in this thread Patch in this message | | | Date | Sun, 23 Aug 2020 08:25:34 -0000 | From | Thomas Gleixner <> | Subject | [GIT pull] core/urgent for v5.9-rc2 |
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Linus,
please pull the latest core/urgent branch from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-urgent-2020-08-23
up to: d88d59b64ca3: core/entry: Respect syscall number rewrites
A single bug fix for the common entry code. The transcript of the x86 version messed up the reload of the syscall number from pt_regs after ptrace and seccomp which breaks syscall number rewriting.
Thanks,
tglx
------------------> Thomas Gleixner (1): core/entry: Respect syscall number rewrites
kernel/entry/common.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/entry/common.c b/kernel/entry/common.c index 9852e0d62d95..fcae019158ca 100644 --- a/kernel/entry/common.c +++ b/kernel/entry/common.c @@ -65,7 +65,8 @@ static long syscall_trace_enter(struct pt_regs *regs, long syscall, syscall_enter_audit(regs, syscall); - return ret ? : syscall; + /* The above might have changed the syscall number */ + return ret ? : syscall_get_nr(current, regs); } noinstr long syscall_enter_from_user_mode(struct pt_regs *regs, long syscall)
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