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Akihiko Odaki ce14316152 virtio: Call set_features during reset 
virtio-net expects set_features() will be called when the feature set
used by the guest changes to update the number of virtqueues but it is
not called during reset, which will clear all features, leaving the
queues added for VIRTIO_NET_F_MQ or VIRTIO_NET_F_RSS. Not only these
extra queues are visible to the guest, they will cause segmentation
fault during migration.

Call set_features() during reset to remove those queues for virtio-net
as we call set_status(). It will also prevent similar bugs for
virtio-net and other devices in the future.

Fixes: f9d6dbf0bf ("virtio-net: remove virtio queues if the guest doesn't support multiqueue")
Buglink: https://issues.redhat.com/browse/RHEL-73842
Cc: qemu-stable@nongnu.org
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20250421-reset-v2-1-e4c1ead88ea1@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 0caed25cd1)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2025-05-16 01:00:59 +03:00
..
9pfs 9pfs: fix FD leak and reduce latency of v9fs_reclaim_fd() 2025-05-12 12:28:01 +03:00
acpi hmat acpi: Fix out of bounds access due to missing use of indirection 2024-03-14 21:24:34 +03:00
adc hw/adc: Make adci[*] R/W in NPCM7XX ADC 2022-07-18 13:20:14 +01:00
alpha hw: Remove unused MAX_IDE_BUS define 2022-10-31 11:32:07 +01:00
arm Kconfig: Extract CONFIG_USB_CHIPIDEA from CONFIG_IMX 2025-03-22 10:52:25 +03:00
audio hw/audio/hda: fix memory leak on audio setup 2024-11-18 19:30:13 +03:00
avr Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
block hw/block/nand: Fix out-of-bound access in NAND block buffer 2024-04-10 19:36:00 +03:00
char hw/char/bcm2835_aux: Fix assert when receive FIFO fills up 2024-08-02 09:37:28 +03:00
core qdev: Fix set_pci_devfn() to visit option only once 2024-11-26 19:06:00 +03:00
cpu cpu/core: Fix "help" of CPU core device types 2021-04-09 16:05:16 -04:00
cris Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
cxl hw/cxl/cxl-host: Fix segmentation fault when getting cxl-fmw property 2024-07-24 07:31:14 +03:00
display hw/display/vhost-user-gpu.c: fix vhost_user_gpu_chr_read() 2024-09-12 09:20:33 +03:00
dma hw/dmax/xlnx_dpdma: fix handling of address_extension descriptor fields 2024-05-02 13:16:29 +03:00
gpio hw/gpio/imx_gpio: Fix interpretation of GDIR polarity 2025-05-08 12:18:57 +03:00
hppa target/hppa: Provide qemu version via fw_cfg to firmware 2023-06-26 19:35:29 +03:00
hyperv hw/hyperv/hyperv.c: Use device_cold_reset() instead of device_legacy_reset() 2022-10-27 10:27:23 +01:00
i2c hw/i2c/imx: Always set interrupt status bit if interrupt condition occurs 2025-05-11 09:16:33 +03:00
i386 amd_iommu: Use correct bitmask to set capability BAR 2025-03-22 10:52:25 +03:00
ide hw/ide/ahci: fix legacy software reset 2023-11-22 14:25:06 +03:00
input lasips2: LASI PS/2 devices are not user-createable 2023-10-21 14:05:14 +03:00
intc hw/intc/arm_gicv3_cpuif: Don't downgrade monitor traps for AArch32 EL3 2025-03-22 10:52:25 +03:00
ipack qbus: Rename qbus_create_inplace() to qbus_init() 2021-09-30 13:42:10 +01:00
ipmi ipmi:smbus: Add a check around a memcpy 2022-08-01 06:40:50 -05:00
isa acpi: x86: move RPQx field back to _SB scope 2022-11-22 05:19:00 -05:00
loongarch Revert "hw/loongarch/virt: Add cfi01 pflash device" 2022-12-05 11:24:35 -05:00
m68k m68k/q800: do not re-randomize RNG seed on snapshot load 2022-10-27 11:34:31 +01:00
mem hw/mem/cxl-type3: Add CXL CDAT Data Object Exchange 2022-11-07 13:12:19 -05:00
microblaze hw/microblaze: pass random seed to fdt 2022-09-21 19:59:56 +02:00
mips target/mips: Revert TARGET_PAGE_BITS_VARY 2025-04-05 16:51:46 +03:00
misc hw/misc/aspeed_hace: Fix buffer overflow in has_padding function 2025-03-24 23:50:03 +03:00
net virtio-net: Fix num_buffers for version 1 2025-04-05 16:51:46 +03:00
nios2 hw/nios2: set machine->fdt in nios2_load_dtb() 2022-10-17 16:15:10 -03:00
nubus qbus: Rename qbus_create_inplace() to qbus_init() 2021-09-30 13:42:10 +01:00
nvme hw/nvme: fix handling of over-committed queues 2024-11-10 11:10:00 +03:00
nvram hw/nvram/xlnx-efuse-ctrl: Free XlnxVersalEFuseCtrl[] "pg0-lock" array 2023-12-20 19:11:10 +03:00
openrisc hw/openrisc/openrisc_sim: keep serial@90000000 as default 2024-12-03 20:53:49 +03:00
pci pci/msix: Fix msix pba read vector poll end calculation 2025-01-17 09:26:23 +03:00
pci-bridge hw/pci-bridge/cxl-upstream: Add a CDAT table access DOE 2022-11-07 13:12:19 -05:00
pci-host hw/pci-host/designware: Fix ATU_UPPER_TARGET register access 2025-04-05 16:51:20 +03:00
pcmcia hw/pcmcia: Do not register PCMCIA type if not required 2021-05-02 17:24:50 +02:00
ppc ppc/pnv/occ: Fix common area sensor offsets 2025-03-22 10:52:25 +03:00
rdma hw/pvrdma: Protect against buggy or malicious guest driver 2023-10-21 14:05:14 +03:00
remote hw/remote/vfio-user: Fix config space access byte order 2024-05-10 13:20:20 +03:00
riscv hw/riscv: virt: Fix riscv,pmu DT node path 2023-09-13 12:21:22 +03:00
rtc hw/rtc/goldfish: keep time offset when resetting 2025-04-02 10:17:41 +03:00
rx rx: re-randomize rng-seed on reboot 2022-10-27 11:34:31 +01:00
s390x s390x/s390-virtio-ccw: don't crash on weird RAM sizes 2024-12-24 15:31:54 +03:00
scsi scsi: megasas: Internal cdbs have 16-byte length 2024-12-03 09:22:01 +03:00
sd hw/sd/sdhci: Reset @data_count index on invalid ADMA transfers 2024-08-11 10:43:25 +03:00
sensor hw/sensor: Add Renesas ISL69259 device model 2022-07-14 16:24:38 +02:00
sh4 Use g_new() & friends where that makes obvious sense 2022-03-21 15:44:44 +01:00
smbios smbios: Fix buffer overrun when using path= option 2025-04-10 15:43:46 +03:00
sparc machine: make memory-backend a link property 2022-05-12 12:29:44 +02:00
sparc64 hw: Remove unused MAX_IDE_BUS define 2022-10-31 11:32:07 +01:00
ssi aspeed/smc: Cache AspeedSMCClass 2022-10-24 11:20:15 +02:00
timer hw/timer/nrf51_timer: Don't lose time when timer is queried in tight loop 2023-06-22 10:38:38 +03:00
tpm hw/tpm: TIS on sysbus: Remove unsupport ppi command line option 2023-09-13 12:21:22 +03:00
tricore hw/tricore: fix inclusion of tricore_testboard 2021-07-20 20:10:21 +02:00
usb Kconfig: Extract CONFIG_USB_CHIPIDEA from CONFIG_IMX 2025-03-22 10:52:25 +03:00
vfio vfio/pci: Disable INTx in vfio_realize error path 2023-08-05 08:39:54 +03:00
virtio virtio: Call set_features during reset 2025-05-16 01:00:59 +03:00
watchdog watchdog: remove -watchdog option 2022-09-29 11:40:28 +02:00
xen xen/pt: reserve PCI slot 2 for Intel igd-passthru 2023-05-18 21:09:59 +03:00
xenpv Warn user if the vga flag is passed but no vga device is created 2022-05-09 08:21:14 +02:00
xtensa hw/xtensa: fix reset value of MIROUT register of MX PIC 2022-05-06 15:27:40 -07:00
Kconfig hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00
meson.build hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00