9df0eb3b5b
- hw/virtio/virtio-crypto: Protect from DMA re-entrancy bugs(CVE-2024-3446) - hw/char/virtio-serial-bus: Protect from DMA re-entrancy bugs(CVE-2024-3446) - hw/display/virtio-gpu: Protect from DMA re-entrancy bugs(CVE-2024-3446) - hw/virtio: Introduce virtio_bh_new_guarded() helper - hw: replace most qemu_bh_new calls with qemu_bh_new_guarded - checkpatch: add qemu_bh_new/aio_bh_new checks - async: avoid use-after-free on re-entrancy guard - async: Add an optional reentrancy guard to the BH API - util/async: add a human-readable name to BHs for debugging - hw/sd/sdhci: Do not update TRNMOD when Command Inhibit (DAT) is set - Include sysemu/sysemu.h a lot less Signed-off-by: Jiabo Feng <fengjiabo1@huawei.com>
38 lines
1.6 KiB
Diff
38 lines
1.6 KiB
Diff
From 73e1e37d4853d94e580d285556f9015ade835093 Mon Sep 17 00:00:00 2001
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From: Alexander Bulekov <alxndr@bu.edu>
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Date: Thu, 27 Apr 2023 17:10:08 -0400
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Subject: [PATCH] checkpatch: add qemu_bh_new/aio_bh_new checks
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Advise authors to use the _guarded versions of the APIs, instead.
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Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
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Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
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Message-Id: <20230427211013.2994127-4-alxndr@bu.edu>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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---
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scripts/checkpatch.pl | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
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index d24c9441ee..067f6a4e48 100755
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--- a/scripts/checkpatch.pl
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+++ b/scripts/checkpatch.pl
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@@ -2811,6 +2811,14 @@ sub process {
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if ($line =~ /\bsignal\s*\(/ && !($line =~ /SIG_(?:IGN|DFL)/)) {
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ERROR("use sigaction to establish signal handlers; signal is not portable\n" . $herecurr);
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}
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+# recommend qemu_bh_new_guarded instead of qemu_bh_new
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+ if ($realfile =~ /.*\/hw\/.*/ && $line =~ /\bqemu_bh_new\s*\(/) {
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+ ERROR("use qemu_bh_new_guarded() instead of qemu_bh_new() to avoid reentrancy problems\n" . $herecurr);
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+ }
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+# recommend aio_bh_new_guarded instead of aio_bh_new
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+ if ($realfile =~ /.*\/hw\/.*/ && $line =~ /\baio_bh_new\s*\(/) {
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+ ERROR("use aio_bh_new_guarded() instead of aio_bh_new() to avoid reentrancy problems\n" . $herecurr);
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+ }
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# check for module_init(), use category-specific init macros explicitly please
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if ($line =~ /^module_init\s*\(/) {
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ERROR("please use block_init(), type_init() etc. instead of module_init()\n" . $herecurr);
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--
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2.27.0
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