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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-21 21:21:26 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-21 21:21:26 +0200 |
| commit | 4b927bc37359dec23f67d3427fc982945f24f404 (patch) | |
| tree | 245449ef9146942dc7fffd0235b48b7e70a00bf2 /gitlab/issues/target_missing/host_missing/accel_missing/646.toml | |
| parent | aa8bd79cec7bf6790ddb01d156c2ef2201abbaab (diff) | |
| download | emulator-bug-study-4b927bc37359dec23f67d3427fc982945f24f404.tar.gz emulator-bug-study-4b927bc37359dec23f67d3427fc982945f24f404.zip | |
add gitlab issues in toml format
Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/646.toml')
| -rw-r--r-- | gitlab/issues/target_missing/host_missing/accel_missing/646.toml | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/646.toml b/gitlab/issues/target_missing/host_missing/accel_missing/646.toml new file mode 100644 index 00000000..b47e7f9a --- /dev/null +++ b/gitlab/issues/target_missing/host_missing/accel_missing/646.toml @@ -0,0 +1,26 @@ +id = 646 +title = "Infinite loop in xhci_ring_chain_length() in hw/usb/hcd-xhci.c (CVE-2020-14394)" +state = "closed" +created_at = "2021-09-28T12:49:47.888Z" +closed_at = "2022-08-16T18:23:56.604Z" +labels = ["Security", "TestCase", "USB", "workflow::In Progress"] +url = "https://gitlab.com/qemu-project/qemu/-/issues/646" +host-os = "Fedora 33" +host-arch = "x86" +qemu-version = "6.1.50 (v6.1.0-861-g22651bced7)" +guest-os = "Fedora 32" +guest-arch = "x86" +description = """An infinite loop issue was found in the USB xHCI controller emulation of QEMU. Specifically, function `xhci_ring_chain_length()` in hw/usb/hcd-xhci.c may get stuck while fetching empty TRBs from guest memory, since the exit conditions of the loop depend on values that are fully controlled by guest. A privileged guest user may exploit this issue to hang the QEMU process on the host, resulting in a denial of service.""" +reproduce = """Build and load `xhci.ko` from within the guest: + +1) make +2) insmod xhci.ko + +[Makefile](/uploads/98dbf7b4facc9b100817b3c8f63b5cb2/Makefile) + +[usb-xhci.h](/uploads/f225524b1553d8cf6c1dfa89369b6edc/usb-xhci.h) + +[xhci.c](/uploads/c635f742d12a2bba6ea472ddfe006d56/xhci.c)""" +additional = """This issue was reported by Gaoning Pan (Zhejiang University) and Xingwei Li (Ant Security Light-Year Lab). + +RH bug: https://bugzilla.redhat.com/show_bug.cgi?id=1908004.""" |