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Vulnerability · Published Apr 3, 2024 · Assigned by Linux

CVE-2024-26749usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable()

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.2%top 84.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable() ... cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ... 'priv_req' actually free at cdns3_gadget_ep_free_request(). But list_del_init() use priv_req->list after it. [ 1542.642868][ T534] BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xd4 [ 1542.642868][ T534] [ 1542.653162][ T534] Use-after-free read at 0x000000009ed0ba99 (in kfence-#3): [ 1542.660311][ T534] __list_del_entry_valid+0x10/0xd4 [ 1542.665375][ T534] cdns3_gadget_ep_disable+0x1f8/0x388 [cdns3] [ 1542.671571][ T534] usb_ep_disable+0x44/0xe4 [ 1542.675948][ T534] ffs_func_eps_disable+0x64/0xc8 [ 1542.680839][ T534] ffs_func_set_alt+0x74/0x368 [ 1542.685478][ T534] ffs_func_disable+0x18/0x28 Move list_del_init() before cdns3_gadget_ep_free_request() to resolve this problem.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.82-1DEBIAN-CVE-2024-26749
Debian:13linux6.7.7-1DEBIAN-CVE-2024-26749
Debian:14linux6.7.7-1DEBIAN-CVE-2024-26749
Ubuntu:22.04:LTSlinux5.15.0-112.122UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux5.15.0-112.122USN-6820-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-aws5.15.0-1063.69USN-6821-3
Ubuntu:22.04:LTSlinux-aws5.15.0-1063.69UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-azure5.15.0-1066.75UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-azure5.15.0-1066.75USN-6821-4
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1065.74.1USN-6821-4
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1067.76.1UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-gcp5.15.0-1062.70UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-gcp5.15.0-1062.70USN-6820-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-gke5.15.0-1060.66USN-6821-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1060.66UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1046.53UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1046.53USN-6821-2
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-ibm5.15.0-1056.59USN-6821-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1056.59UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1058.64UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1058.64USN-6821-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1060.65UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-kvm5.15.0-1060.65USN-6821-2
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-110.120USN-6820-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-110.120UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1058.59USN-6820-2
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1058.59UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1026.26UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-oracle5.15.0-1061.67USN-6821-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1061.67UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-raspi5.15.0-1058.61UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-raspi5.15.0-1058.61USN-6919-1
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2024-26749
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34USN-6820-1

Affected products (as reported)

VendorProductVersions
Linux Linux 7733f6c32e36ff9d7adadf40001039bf219b1cbe – before cfa9abb5570c489dabf6f7fb3a066cc576fc88247733f6c32e36ff9d7adadf40001039bf219b1cbe – before b40328eea93c75a5645891408010141a0159f6437733f6c32e36ff9d7adadf40001039bf219b1cbe – before 4e5c73b15d95452c1ba9c771dd013a3fbe052ff37733f6c32e36ff9d7adadf40001039bf219b1cbe – before 2134e9906e17b1e5284300fab547869ebacfd7d97733f6c32e36ff9d7adadf40001039bf219b1cbe – before 29e42e1578a10c611b3f1a38f3229b2d664b5d167733f6c32e36ff9d7adadf40001039bf219b1cbe – before 9a07244f614bc417de527b799da779dcae780b5d7733f6c32e36ff9d7adadf40001039bf219b1cbe – before cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6
Linux Linux 5.4

References