In the Linux kernel, the following vulnerability has been resolved:
nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()
Fix a use-after-free that occurs in hcd when in_urb sent from pn533_usb_send_frame() is completed earlier than out_urb. Its callback frees the skb data in pn533_send_async_complete() that is used as a transfer buffer of out_urb. Wait before sending in_urb until the callback of out_urb is called. To modify the callback of out_urb alone, separate the complete function of out_urb and ack_urb.
Found by a modified version of syzkaller.
BUG: KASAN: use-after-free in dummy_timer Call Trace: memcpy (mm/kasan/shadow.c:65) dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352) transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453) dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972) arch_static_branch (arch/x86/include/asm/jump_label.h:27) static_key_false (include/linux/jump_label.h:207) timer_expire_exit (include/trace/events/timer.h:127) call_timer_fn (kernel/time/timer.c:1475) expire_timers (kernel/time/timer.c:1519) __run_timers (kernel/time/timer.c:1790) run_timer_softirq (kernel/time/timer.c:1803)
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Aug 22, 2024 | Aug 22, 2024 |
| Ubuntu | — | Upgrade linux-lowlatencyUpgrade linux-azure-fdeUpgrade linux-aws-hweUpgrade linux-hwe-5.15Upgrade linux-gcp-5.15Upgrade linux-gkeop-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-aws-fipsUpgrade linux-intel-iotgUpgrade linux-gcp-fipsUpgrade linux-oracleUpgrade linux-hweUpgrade linux-azure-5.4Upgrade linux-gcp-4.15Upgrade linux-raspiUpgrade linux-azure-5.15Upgrade linux-gkeopUpgrade linux-intel-iotg-5.15Upgrade linux-azureUpgrade linux-hwe-5.4Upgrade linux-ibmUpgrade linux-nvidiaUpgrade linux-gcpUpgrade linux-riscv-5.15Upgrade linux-oracle-5.15Upgrade linux-kvmUpgrade linux-fipsUpgrade linux-realtimeUpgrade linux-intel-iot-realtimeUpgrade linux-gcp-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-azure-4.15Upgrade linux-oracle-5.4Upgrade linux-iotUpgrade linux-awsUpgrade linux-ibm-5.4Upgrade linux-aws-5.15Upgrade linux-gkeUpgrade linux-raspi-5.4Upgrade linux-nvidia-tegra-5.15Upgrade linux-azure-fipsUpgrade linux-aws-5.4Upgrade linuxUpgrade linux-bluefield | Nov 19, 2024 | Aug 21, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Aug 21, 2024 |
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