diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2019-15890.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2019-15890.patch | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2019-15890.patch b/meta/recipes-devtools/qemu/qemu/CVE-2019-15890.patch deleted file mode 100644 index 1d89431be6..0000000000 --- a/meta/recipes-devtools/qemu/qemu/CVE-2019-15890.patch +++ /dev/null @@ -1,48 +0,0 @@ -From 4fc0d23e8f6d795c679623d2ed2cbe6a7a17b9c7 Mon Sep 17 00:00:00 2001 -From: Li Zhou <li.zhou@windriver.com> -Date: Tue, 10 Sep 2019 20:02:15 -0700 -Subject: [PATCH] ip_reass: Fix use after free - -Using ip_deq after m_free might read pointers from an allocation reuse. - -This would be difficult to exploit, but that is still related with -CVE-2019-14378 which generates fragmented IP packets that would trigger this -issue and at least produce a DoS. - -Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> - -Upstream-Status: Backport -CVE: CVE-2019-15890 -Signed-off-by: Li Zhou <li.zhou@windriver.com> ---- - slirp/src/ip_input.c | 6 ++++-- - 1 file changed, 4 insertions(+), 2 deletions(-) - -diff --git a/slirp/src/ip_input.c b/slirp/src/ip_input.c -index 8c75d914..c07d7d40 100644 ---- a/slirp/src/ip_input.c -+++ b/slirp/src/ip_input.c -@@ -292,6 +292,7 @@ static struct ip *ip_reass(Slirp *slirp, struct ip *ip, struct ipq *fp) - */ - while (q != (struct ipasfrag *)&fp->frag_link && - ip->ip_off + ip->ip_len > q->ipf_off) { -+ struct ipasfrag *prev; - i = (ip->ip_off + ip->ip_len) - q->ipf_off; - if (i < q->ipf_len) { - q->ipf_len -= i; -@@ -299,9 +300,10 @@ static struct ip *ip_reass(Slirp *slirp, struct ip *ip, struct ipq *fp) - m_adj(dtom(slirp, q), i); - break; - } -+ prev = q; - q = q->ipf_next; -- m_free(dtom(slirp, q->ipf_prev)); -- ip_deq(q->ipf_prev); -+ ip_deq(prev); -+ m_free(dtom(slirp, prev)); - } - - insert: --- -2.23.0 - |