Johannes Berg 7f8fd5dd43 um: chan_user: Fix winch_tramp() return value ... commit 57ae0b67b7 upstream. The previous fix here was only partially correct, it did result in returning a proper error value in case of error, but it also clobbered the pid that we need to return from this function (not just zero for success). As a result, it returned 0 here, but later this is treated as a pid and used to kill the process, but since it's now 0 we kill(0, SIGKILL), which makes UML kill itself rather than just the helper thread. Fix that and make it more obvious by using a separate variable for the pid. Fixes: ccf1236eca ("um: fix error return code in winch_tramp()") Reported-and-tested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-06-09 10:21:26 +02:00
..
configs	um: Cleanup CONFIG_IOSCHED_CFQ	2020-03-29 23:15:22 +02:00
drivers	um: chan_user: Fix winch_tramp() return value	2022-06-09 10:21:26 +02:00
include	ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP	2022-06-09 10:20:49 +02:00
kernel	ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP	2022-06-09 10:20:49 +02:00
os-Linux	um: registers: Rename function names to avoid conflicts and build problems	2022-01-27 10:54:18 +01:00
scripts	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
Kconfig	Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-10-22 09:59:21 -07:00
Kconfig.debug	um: Disable CONFIG_GCOV with MODULES	2021-05-22 11:40:53 +02:00
Makefile	kbuild: remove cc-option test of -fno-stack-protector	2020-07-07 11:13:10 +09:00
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