In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: change DMA direction while mapping reinjected packets
For fragmented packets, ath12k reassembles each fragment as a normal
packet and then reinjects it into HW ring. In this case, the DMA
direction should be DMA_TO_DEVICE, not DMA_FROM_DEVICE. Otherwise,
an invalid payload may be reinjected into the HW and
subsequently delivered to the host.
Given that arbitrary memory can be allocated to the skb buffer,
knowledge about the data contained in the reinjected buffer is lacking.
Consequently, thereβs a risk of private information being leaked.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00209-QCAHKSWPL_SILICONZ-1
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 24.04 | noarch | linux | <Β any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | <Β any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-azure | <Β any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-gcp | <Β any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-gke | <Β any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-hwe-6.8 | <Β any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-ibm | <Β any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-intel | <Β any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-lowlatency | <Β any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-lowlatency-hwe-6.8 | <Β any | UNKNOWN |
git.kernel.org/linus/33322e3ef07409278a18c6919c448e369d66a18e (6.11-rc1)
git.kernel.org/stable/c/33322e3ef07409278a18c6919c448e369d66a18e
git.kernel.org/stable/c/6925320fcd40d8042d32bf4ede8248e7a5315c3b
git.kernel.org/stable/c/e99d9b16ff153de9540073239d24adc3b0a3a997
launchpad.net/bugs/cve/CVE-2024-43881
nvd.nist.gov/vuln/detail/CVE-2024-43881
security-tracker.debian.org/tracker/CVE-2024-43881
www.cve.org/CVERecord?id=CVE-2024-43881