diff --git a/hw-display-qxl-Assert-memory-slot-fits-in-preallocat.patch b/hw-display-qxl-Assert-memory-slot-fits-in-preallocat.patch new file mode 100644 index 0000000000000000000000000000000000000000..f902a8cb10f0a056dfa66a0d74df0bccd1a55119 --- /dev/null +++ b/hw-display-qxl-Assert-memory-slot-fits-in-preallocat.patch @@ -0,0 +1,31 @@ +From 77af3f7f295a8b775adac7191a76136e779ac1c3 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= +Date: Mon, 28 Nov 2022 21:27:41 +0100 +Subject: [PATCH 5/5] hw/display/qxl: Assert memory slot fits in preallocated + MemoryRegion +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: Philippe Mathieu-Daudé +Signed-off-by: Stefan Hajnoczi +Message-Id: <20221128202741.4945-6-philmd@linaro.org> +--- + hw/display/qxl.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/hw/display/qxl.c b/hw/display/qxl.c +index b34f2bd9b1..5a923d30de 100644 +--- a/hw/display/qxl.c ++++ b/hw/display/qxl.c +@@ -1400,6 +1400,7 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, + qxl_set_guest_bug(d, "%s: pci_region = %d", __func__, pci_region); + return 1; + } ++ assert(guest_end - pci_start <= memory_region_size(mr)); + + virt_start = (intptr_t)memory_region_get_ram_ptr(mr); + memslot.slot_id = slot_id; +-- +2.27.0 + diff --git a/hw-display-qxl-Avoid-buffer-overrun-in-qxl_phys2virt.patch b/hw-display-qxl-Avoid-buffer-overrun-in-qxl_phys2virt.patch new file mode 100644 index 0000000000000000000000000000000000000000..46ba760f79ea0cdc059bc96fe9c7eab7aa445e1c --- /dev/null +++ b/hw-display-qxl-Avoid-buffer-overrun-in-qxl_phys2virt.patch @@ -0,0 +1,109 @@ +From 5bcfd2b545b0b0830a2237cbdd3a3c2cdee9c5d2 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= +Date: Mon, 28 Nov 2022 21:27:40 +0100 +Subject: [PATCH 4/5] hw/display/qxl: Avoid buffer overrun in qxl_phys2virt + (CVE-2022-4144) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Have qxl_get_check_slot_offset() return false if the requested +buffer size does not fit within the slot memory region. + +Similarly qxl_phys2virt() now returns NULL in such case, and +qxl_dirty_one_surface() aborts. + +This avoids buffer overrun in the host pointer returned by +memory_region_get_ram_ptr(). + +Fixes: CVE-2022-4144 (out-of-bounds read) +Reported-by: Wenxu Yin (@awxylitol) +Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1336 +Signed-off-by: Philippe Mathieu-Daudé +Signed-off-by: Stefan Hajnoczi +Message-Id: <20221128202741.4945-5-philmd@linaro.org> +--- + hw/display/qxl.c | 27 +++++++++++++++++++++++---- + hw/display/qxl.h | 2 +- + 2 files changed, 24 insertions(+), 5 deletions(-) + +diff --git a/hw/display/qxl.c b/hw/display/qxl.c +index 7badb2aceb..b34f2bd9b1 100644 +--- a/hw/display/qxl.c ++++ b/hw/display/qxl.c +@@ -1440,11 +1440,13 @@ static void qxl_reset_surfaces(PCIQXLDevice *d) + + /* can be also called from spice server thread context */ + static bool qxl_get_check_slot_offset(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, +- uint32_t *s, uint64_t *o) ++ uint32_t *s, uint64_t *o, ++ size_t size_requested) + { + uint64_t phys = le64_to_cpu(pqxl); + uint32_t slot = (phys >> (64 - 8)) & 0xff; + uint64_t offset = phys & 0xffffffffffff; ++ uint64_t size_available; + + if (slot >= NUM_MEMSLOTS) { + qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot, +@@ -1468,6 +1470,23 @@ static bool qxl_get_check_slot_offset(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, + slot, offset, qxl->guest_slots[slot].size); + return false; + } ++ size_available = memory_region_size(qxl->guest_slots[slot].mr); ++ if (qxl->guest_slots[slot].offset + offset >= size_available) { ++ qxl_set_guest_bug(qxl, ++ "slot %d offset %"PRIu64" > region size %"PRIu64"\n", ++ slot, qxl->guest_slots[slot].offset + offset, ++ size_available); ++ return false; ++ } ++ size_available -= qxl->guest_slots[slot].offset + offset; ++ if (size_requested > size_available) { ++ qxl_set_guest_bug(qxl, ++ "slot %d offset %"PRIu64" size %zu: " ++ "overrun by %"PRIu64" bytes\n", ++ slot, offset, size_requested, ++ size_requested - size_available); ++ return false; ++ } + + *s = slot; + *o = offset; +@@ -1487,7 +1506,7 @@ void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id, + offset = le64_to_cpu(pqxl) & 0xffffffffffff; + return (void *)(intptr_t)offset; + case MEMSLOT_GROUP_GUEST: +- if (!qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset)) { ++ if (!qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset, size)) { + return NULL; + } + ptr = memory_region_get_ram_ptr(qxl->guest_slots[slot].mr); +@@ -1945,9 +1964,9 @@ static void qxl_dirty_one_surface(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, + uint32_t slot; + bool rc; + +- rc = qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset); +- assert(rc == true); + size = (uint64_t)height * abs(stride); ++ rc = qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset, size); ++ assert(rc == true); + trace_qxl_surfaces_dirty(qxl->id, offset, size); + qxl_set_dirty(qxl->guest_slots[slot].mr, + qxl->guest_slots[slot].offset + offset, +diff --git a/hw/display/qxl.h b/hw/display/qxl.h +index d6856c9f23..80b82bca94 100644 +--- a/hw/display/qxl.h ++++ b/hw/display/qxl.h +@@ -158,7 +158,7 @@ typedef struct PCIQXLDevice { + * + * Returns a host pointer to a buffer placed at offset @phys within the + * active slot @group_id of the PCI VGA RAM memory region associated with +- * the @qxl device. If the slot is inactive, or the offset is out ++ * the @qxl device. If the slot is inactive, or the offset + size are out + * of the memory region, returns NULL. + * + * Use with care; by the time this function returns, the returned pointer is +-- +2.27.0 + diff --git a/hw-display-qxl-Document-qxl_phys2virt.patch b/hw-display-qxl-Document-qxl_phys2virt.patch new file mode 100644 index 0000000000000000000000000000000000000000..427eb756387e7d899d6245703c809520d28a9458 --- /dev/null +++ b/hw-display-qxl-Document-qxl_phys2virt.patch @@ -0,0 +1,49 @@ +From 77889818eff8ccadb7fe08579cedaa4ec5e8f39d Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= +Date: Mon, 28 Nov 2022 21:27:38 +0100 +Subject: [PATCH 2/5] hw/display/qxl: Document qxl_phys2virt() +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Reviewed-by: Marc-André Lureau +Signed-off-by: Philippe Mathieu-Daudé +Signed-off-by: Stefan Hajnoczi +Message-Id: <20221128202741.4945-3-philmd@linaro.org> +--- + hw/display/qxl.h | 19 +++++++++++++++++++ + 1 file changed, 19 insertions(+) + +diff --git a/hw/display/qxl.h b/hw/display/qxl.h +index 4adfdb1e5d..ceda12d28b 100644 +--- a/hw/display/qxl.h ++++ b/hw/display/qxl.h +@@ -148,6 +148,25 @@ typedef struct PCIQXLDevice { + #define QXL_DEFAULT_REVISION QXL_REVISION_STABLE_V12 + + /* qxl.c */ ++/** ++ * qxl_phys2virt: Get a pointer within a PCI VRAM memory region. ++ * ++ * @qxl: QXL device ++ * @phys: physical offset of buffer within the VRAM ++ * @group_id: memory slot group ++ * ++ * Returns a host pointer to a buffer placed at offset @phys within the ++ * active slot @group_id of the PCI VGA RAM memory region associated with ++ * the @qxl device. If the slot is inactive, or the offset is out ++ * of the memory region, returns NULL. ++ * ++ * Use with care; by the time this function returns, the returned pointer is ++ * not protected by RCU anymore. If the caller is not within an RCU critical ++ * section and does not hold the iothread lock, it must have other means of ++ * protecting the pointer, such as a reference to the region that includes ++ * the incoming ram_addr_t. ++ * ++ */ + void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL phys, int group_id); + void qxl_set_guest_bug(PCIQXLDevice *qxl, const char *msg, ...) + GCC_FMT_ATTR(2, 3); +-- +2.27.0 + diff --git a/hw-display-qxl-Have-qxl_log_command-Return-early-if-.patch b/hw-display-qxl-Have-qxl_log_command-Return-early-if-.patch new file mode 100644 index 0000000000000000000000000000000000000000..01d290821dce8bc73ed59c6c8246446c04dac122 --- /dev/null +++ b/hw-display-qxl-Have-qxl_log_command-Return-early-if-.patch @@ -0,0 +1,53 @@ +From 15907e2ec54501b2e323774f40221f5396bb7281 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= +Date: Mon, 28 Nov 2022 21:27:37 +0100 +Subject: [PATCH 1/5] hw/display/qxl: Have qxl_log_command Return early if no + log_cmd handler +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Only 3 command types are logged: no need to call qxl_phys2virt() +for the other types. Using different cases will help to pass +different structure sizes to qxl_phys2virt() in a pair of commits. + +Reviewed-by: Marc-André Lureau +Signed-off-by: Philippe Mathieu-Daudé +Signed-off-by: Stefan Hajnoczi +Message-Id: <20221128202741.4945-2-philmd@linaro.org> +--- + hw/display/qxl-logger.c | 11 +++++++++++ + 1 file changed, 11 insertions(+) + +diff --git a/hw/display/qxl-logger.c b/hw/display/qxl-logger.c +index 2ec6d8fa3d..551c274c27 100644 +--- a/hw/display/qxl-logger.c ++++ b/hw/display/qxl-logger.c +@@ -249,6 +249,16 @@ int qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext) + qxl_name(qxl_type, ext->cmd.type), + compat ? "(compat)" : ""); + ++ switch (ext->cmd.type) { ++ case QXL_CMD_DRAW: ++ break; ++ case QXL_CMD_SURFACE: ++ break; ++ case QXL_CMD_CURSOR: ++ break; ++ default: ++ goto out; ++ } + data = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id); + if (!data) { + return 1; +@@ -271,6 +281,7 @@ int qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext) + qxl_log_cmd_cursor(qxl, data, ext->group_id); + break; + } ++out: + fprintf(stderr, "\n"); + return 0; + } +-- +2.27.0 + diff --git a/hw-display-qxl-Pass-requested-buffer-size-to-qxl_phy.patch b/hw-display-qxl-Pass-requested-buffer-size-to-qxl_phy.patch new file mode 100644 index 0000000000000000000000000000000000000000..68f62f4c505417098970bc5766c151185c74aa9f --- /dev/null +++ b/hw-display-qxl-Pass-requested-buffer-size-to-qxl_phy.patch @@ -0,0 +1,213 @@ +From b1a77b00f8ad5f7393553b02110be8211abcde5e Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= +Date: Mon, 28 Nov 2022 21:27:39 +0100 +Subject: [PATCH 3/5] hw/display/qxl: Pass requested buffer size to + qxl_phys2virt() +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Currently qxl_phys2virt() doesn't check for buffer overrun. +In order to do so in the next commit, pass the buffer size +as argument. + +For QXLCursor in qxl_render_cursor() -> qxl_cursor() we +verify the size of the chunked data ahead, checking we can +access 'sizeof(QXLCursor) + chunk->data_size' bytes. +Since in the SPICE_CURSOR_TYPE_MONO case the cursor is +assumed to fit in one chunk, no change are required. +In SPICE_CURSOR_TYPE_ALPHA the ahead read is handled in +qxl_unpack_chunks(). + +Signed-off-by: Philippe Mathieu-Daudé +Acked-by: Gerd Hoffmann +Signed-off-by: Stefan Hajnoczi +Message-Id: <20221128202741.4945-4-philmd@linaro.org> +--- + hw/display/qxl-logger.c | 11 ++++++++--- + hw/display/qxl-render.c | 20 ++++++++++++++++---- + hw/display/qxl.c | 14 +++++++++----- + hw/display/qxl.h | 4 +++- + 4 files changed, 36 insertions(+), 13 deletions(-) + +diff --git a/hw/display/qxl-logger.c b/hw/display/qxl-logger.c +index 551c274c27..031ddfecc1 100644 +--- a/hw/display/qxl-logger.c ++++ b/hw/display/qxl-logger.c +@@ -106,7 +106,7 @@ static int qxl_log_image(PCIQXLDevice *qxl, QXLPHYSICAL addr, int group_id) + QXLImage *image; + QXLImageDescriptor *desc; + +- image = qxl_phys2virt(qxl, addr, group_id); ++ image = qxl_phys2virt(qxl, addr, group_id, sizeof(QXLImage)); + if (!image) { + return 1; + } +@@ -216,7 +216,8 @@ int qxl_log_cmd_cursor(PCIQXLDevice *qxl, QXLCursorCmd *cmd, int group_id) + cmd->u.set.position.y, + cmd->u.set.visible ? "yes" : "no", + cmd->u.set.shape); +- cursor = qxl_phys2virt(qxl, cmd->u.set.shape, group_id); ++ cursor = qxl_phys2virt(qxl, cmd->u.set.shape, group_id, ++ sizeof(QXLCursor)); + if (!cursor) { + return 1; + } +@@ -238,6 +239,7 @@ int qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext) + { + bool compat = ext->flags & QXL_COMMAND_FLAG_COMPAT; + void *data; ++ size_t datasz; + int ret; + + if (!qxl->cmdlog) { +@@ -251,15 +253,18 @@ int qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext) + + switch (ext->cmd.type) { + case QXL_CMD_DRAW: ++ datasz = compat ? sizeof(QXLCompatDrawable) : sizeof(QXLDrawable); + break; + case QXL_CMD_SURFACE: ++ datasz = sizeof(QXLSurfaceCmd); + break; + case QXL_CMD_CURSOR: ++ datasz = sizeof(QXLCursorCmd); + break; + default: + goto out; + } +- data = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id); ++ data = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id, datasz); + if (!data) { + return 1; + } +diff --git a/hw/display/qxl-render.c b/hw/display/qxl-render.c +index bcef2a5fb0..c2a619095b 100644 +--- a/hw/display/qxl-render.c ++++ b/hw/display/qxl-render.c +@@ -106,7 +106,9 @@ static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl) + qxl->guest_primary.resized = 0; + qxl->guest_primary.data = qxl_phys2virt(qxl, + qxl->guest_primary.surface.mem, +- MEMSLOT_GROUP_GUEST); ++ MEMSLOT_GROUP_GUEST, ++ qxl->guest_primary.abs_stride ++ * height); + if (!qxl->guest_primary.data) { + return; + } +@@ -221,7 +223,8 @@ static void qxl_unpack_chunks(void *dest, size_t size, PCIQXLDevice *qxl, + if (offset == size) { + return; + } +- chunk = qxl_phys2virt(qxl, chunk->next_chunk, group_id); ++ chunk = qxl_phys2virt(qxl, chunk->next_chunk, group_id, ++ sizeof(QXLDataChunk) + chunk->data_size); + if (!chunk) { + return; + } +@@ -288,7 +291,8 @@ fail: + /* called from spice server thread context only */ + int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext) + { +- QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id); ++ QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id, ++ sizeof(QXLCursorCmd)); + QXLCursor *cursor; + QEMUCursor *c; + +@@ -307,7 +311,15 @@ int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext) + } + switch (cmd->type) { + case QXL_CURSOR_SET: +- cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id); ++ /* First read the QXLCursor to get QXLDataChunk::data_size ... */ ++ cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id, ++ sizeof(QXLCursor)); ++ if (!cursor) { ++ return 1; ++ } ++ /* Then read including the chunked data following QXLCursor. */ ++ cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id, ++ sizeof(QXLCursor) + cursor->chunk.data_size); + if (!cursor) { + return 1; + } +diff --git a/hw/display/qxl.c b/hw/display/qxl.c +index 98c7410032..7badb2aceb 100644 +--- a/hw/display/qxl.c ++++ b/hw/display/qxl.c +@@ -272,7 +272,8 @@ static void qxl_spice_monitors_config_async(PCIQXLDevice *qxl, int replay) + QXL_IO_MONITORS_CONFIG_ASYNC)); + } + +- cfg = qxl_phys2virt(qxl, qxl->guest_monitors_config, MEMSLOT_GROUP_GUEST); ++ cfg = qxl_phys2virt(qxl, qxl->guest_monitors_config, MEMSLOT_GROUP_GUEST, ++ sizeof(QXLMonitorsConfig)); + if (cfg != NULL && cfg->count == 1) { + qxl->guest_primary.resized = 1; + qxl->guest_head0_width = cfg->heads[0].width; +@@ -457,7 +458,8 @@ static int qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext) + switch (le32_to_cpu(ext->cmd.type)) { + case QXL_CMD_SURFACE: + { +- QXLSurfaceCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id); ++ QXLSurfaceCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id, ++ sizeof(QXLSurfaceCmd)); + + if (!cmd) { + return 1; +@@ -491,7 +493,8 @@ static int qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext) + } + case QXL_CMD_CURSOR: + { +- QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id); ++ QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id, ++ sizeof(QXLCursorCmd)); + + if (!cmd) { + return 1; +@@ -1472,7 +1475,8 @@ static bool qxl_get_check_slot_offset(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, + } + + /* can be also called from spice server thread context */ +-void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id) ++void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id, ++ size_t size) + { + uint64_t offset; + uint32_t slot; +@@ -1972,7 +1976,7 @@ static void qxl_dirty_surfaces(PCIQXLDevice *qxl) + } + + cmd = qxl_phys2virt(qxl, qxl->guest_surfaces.cmds[i], +- MEMSLOT_GROUP_GUEST); ++ MEMSLOT_GROUP_GUEST, sizeof(QXLSurfaceCmd)); + assert(cmd); + assert(cmd->type == QXL_SURFACE_CMD_CREATE); + qxl_dirty_one_surface(qxl, cmd->u.surface_create.data, +diff --git a/hw/display/qxl.h b/hw/display/qxl.h +index ceda12d28b..d6856c9f23 100644 +--- a/hw/display/qxl.h ++++ b/hw/display/qxl.h +@@ -154,6 +154,7 @@ typedef struct PCIQXLDevice { + * @qxl: QXL device + * @phys: physical offset of buffer within the VRAM + * @group_id: memory slot group ++ * @size: size of the buffer + * + * Returns a host pointer to a buffer placed at offset @phys within the + * active slot @group_id of the PCI VGA RAM memory region associated with +@@ -167,7 +168,8 @@ typedef struct PCIQXLDevice { + * the incoming ram_addr_t. + * + */ +-void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL phys, int group_id); ++void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL phys, int group_id, ++ size_t size); + void qxl_set_guest_bug(PCIQXLDevice *qxl, const char *msg, ...) + GCC_FMT_ATTR(2, 3); + +-- +2.27.0 + diff --git a/qemu.spec b/qemu.spec index 8c83d66ff7b8fe7e9b326d540102b5e9aa50d824..9fe62402971aa51471018ebb2b8be30d129920b9 100644 --- a/qemu.spec +++ b/qemu.spec @@ -1,6 +1,6 @@ Name: qemu Version: 4.1.0 -Release: 71 +Release: 72 Epoch: 10 Summary: QEMU is a generic and open source machine emulator and virtualizer License: GPLv2 and BSD and MIT and CC-BY-SA-4.0 @@ -342,6 +342,11 @@ Patch0329: scsi-lsi53c895a-fix-use-after-free-in-lsi_do_msgout-.patch Patch0330: scsi-lsi53c895a-really-fix-use-after-free-in-lsi_do_.patch Patch0331: hw-usb-hcd-xhci-Fix-unbounded-loop-in-xhci_ring_chai.patch Patch0332: hw-display-ati_2d-Fix-buffer-overflow-in-ati_2d_blt-.patch +Patch0333: hw-display-qxl-Have-qxl_log_command-Return-early-if-.patch +Patch0334: hw-display-qxl-Document-qxl_phys2virt.patch +Patch0335: hw-display-qxl-Pass-requested-buffer-size-to-qxl_phy.patch +Patch0336: hw-display-qxl-Avoid-buffer-overrun-in-qxl_phys2virt.patch +Patch0337: hw-display-qxl-Assert-memory-slot-fits-in-preallocat.patch BuildRequires: flex BuildRequires: bison @@ -743,6 +748,9 @@ getent passwd qemu >/dev/null || \ %endif %changelog +* Mon Dec 05 yezengruan +- fix CVE-2022-4144 + * Fri Sep 30 2022 yezengruan - hw/display/ati_2d: Fix buffer overflow in ati_2d_blt (CVE-2021-3638)