Date: Fri, 21 May 2021 09:25:33 GMT From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 209d4919c527 - main - Make sure all tasklets are drained before unloading the LinuxKPI. Else use-after-free may happen. Message-ID: <202105210925.14L9PXkO070752@gitrepo.freebsd.org>
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The branch main has been updated by hselasky: URL: https://cgit.FreeBSD.org/src/commit/?id=209d4919c5270fe9e3c1d809cf91355d222dc2f3 commit 209d4919c5270fe9e3c1d809cf91355d222dc2f3 Author: Hans Petter Selasky <hselasky@FreeBSD.org> AuthorDate: 2021-05-21 06:52:59 +0000 Commit: Hans Petter Selasky <hselasky@FreeBSD.org> CommitDate: 2021-05-21 09:21:32 +0000 Make sure all tasklets are drained before unloading the LinuxKPI. Else use-after-free may happen. MFC after: 1 week Sponsored by: Mellanox Technologies // NVIDIA Networking --- sys/compat/linuxkpi/common/src/linux_tasklet.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/compat/linuxkpi/common/src/linux_tasklet.c b/sys/compat/linuxkpi/common/src/linux_tasklet.c index 9a4c01737466..26e7bb75cf19 100644 --- a/sys/compat/linuxkpi/common/src/linux_tasklet.c +++ b/sys/compat/linuxkpi/common/src/linux_tasklet.c @@ -128,6 +128,8 @@ tasklet_subsystem_uninit(void *arg __unused) struct tasklet_worker *tw; int i; + taskqgroup_drain_all(qgroup_softirq); + CPU_FOREACH(i) { if (CPU_ABSENT(i)) continue;
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