vulnerability
Ubuntu: (Multiple Advisories) (CVE-2024-26801): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Apr 4, 2024 | May 17, 2024 | Aug 18, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Apr 4, 2024
Added
May 17, 2024
Modified
Aug 18, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Avoid potential use-after-free in hci_error_reset
While handling the HCI_EV_HARDWARE_ERROR event, if the underlying
BT controller is not responding, the GPIO reset mechanism would
free the hci_dev and lead to a use-after-free in hci_error_reset.
Here's the call trace observed on a ChromeOS device with Intel AX201:
queue_work_on+0x3e/0x6c
__hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>]
? init_wait_entry+0x31/0x31
__hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>]
hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>]
process_one_work+0x1d8/0x33f
worker_thread+0x21b/0x373
kthread+0x13a/0x152
? pr_cont_work+0x54/0x54
? kthread_blkcg+0x31/0x31
ret_from_fork+0x1f/0x30
This patch holds the reference count on the hci_dev while processing
a HCI_EV_HARDWARE_ERROR event to avoid potential crash.
Solutions
ubuntu-upgrade-linux-image-4-15-0-1131-oracleubuntu-upgrade-linux-image-4-15-0-1152-kvmubuntu-upgrade-linux-image-4-15-0-1162-gcpubuntu-upgrade-linux-image-4-15-0-1168-awsubuntu-upgrade-linux-image-4-15-0-1177-azureubuntu-upgrade-linux-image-4-15-0-225-genericubuntu-upgrade-linux-image-4-15-0-225-lowlatencyubuntu-upgrade-linux-image-4-4-0-1131-awsubuntu-upgrade-linux-image-4-4-0-1132-kvmubuntu-upgrade-linux-image-4-4-0-1169-awsubuntu-upgrade-linux-image-4-4-0-254-genericubuntu-upgrade-linux-image-4-4-0-254-lowlatencyubuntu-upgrade-linux-image-5-15-0-1030-xilinx-zynqmpubuntu-upgrade-linux-image-5-15-0-1046-gkeopubuntu-upgrade-linux-image-5-15-0-1056-ibmubuntu-upgrade-linux-image-5-15-0-1057-ibmubuntu-upgrade-linux-image-5-15-0-1058-intel-iotgubuntu-upgrade-linux-image-5-15-0-1058-nvidiaubuntu-upgrade-linux-image-5-15-0-1058-nvidia-lowlatencyubuntu-upgrade-linux-image-5-15-0-1058-raspiubuntu-upgrade-linux-image-5-15-0-1060-gkeubuntu-upgrade-linux-image-5-15-0-1060-kvmubuntu-upgrade-linux-image-5-15-0-1061-oracleubuntu-upgrade-linux-image-5-15-0-1062-gcpubuntu-upgrade-linux-image-5-15-0-1063-awsubuntu-upgrade-linux-image-5-15-0-1065-azure-fdeubuntu-upgrade-linux-image-5-15-0-1066-azureubuntu-upgrade-linux-image-5-15-0-110-lowlatencyubuntu-upgrade-linux-image-5-15-0-110-lowlatency-64kubuntu-upgrade-linux-image-5-15-0-112-genericubuntu-upgrade-linux-image-5-15-0-112-generic-64kubuntu-upgrade-linux-image-5-15-0-112-generic-lpaeubuntu-upgrade-linux-image-5-15-0-113-genericubuntu-upgrade-linux-image-5-15-0-113-generic-64kubuntu-upgrade-linux-image-5-15-0-113-generic-lpaeubuntu-upgrade-linux-image-5-4-0-1038-iotubuntu-upgrade-linux-image-5-4-0-1045-xilinx-zynqmpubuntu-upgrade-linux-image-5-4-0-1073-ibmubuntu-upgrade-linux-image-5-4-0-1086-bluefieldubuntu-upgrade-linux-image-5-4-0-1093-gkeopubuntu-upgrade-linux-image-5-4-0-1110-raspiubuntu-upgrade-linux-image-5-4-0-1114-kvmubuntu-upgrade-linux-image-5-4-0-1125-oracleubuntu-upgrade-linux-image-5-4-0-1126-awsubuntu-upgrade-linux-image-5-4-0-1130-gcpubuntu-upgrade-linux-image-5-4-0-1131-azureubuntu-upgrade-linux-image-5-4-0-186-genericubuntu-upgrade-linux-image-5-4-0-186-generic-lpaeubuntu-upgrade-linux-image-5-4-0-186-lowlatencyubuntu-upgrade-linux-image-6-5-0-1014-starfiveubuntu-upgrade-linux-image-6-5-0-1016-laptopubuntu-upgrade-linux-image-6-5-0-1017-raspiubuntu-upgrade-linux-image-6-5-0-1019-nvidiaubuntu-upgrade-linux-image-6-5-0-1019-nvidia-64kubuntu-upgrade-linux-image-6-5-0-1020-awsubuntu-upgrade-linux-image-6-5-0-1020-gcpubuntu-upgrade-linux-image-6-5-0-1021-azureubuntu-upgrade-linux-image-6-5-0-1021-azure-fdeubuntu-upgrade-linux-image-6-5-0-1023-oemubuntu-upgrade-linux-image-6-5-0-1023-oracleubuntu-upgrade-linux-image-6-5-0-1023-oracle-64kubuntu-upgrade-linux-image-6-5-0-35-genericubuntu-upgrade-linux-image-6-5-0-35-generic-64kubuntu-upgrade-linux-image-6-5-0-35-lowlatencyubuntu-upgrade-linux-image-6-5-0-35-lowlatency-64kubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-aws-lts-20-04ubuntu-upgrade-linux-image-aws-lts-22-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-fdeubuntu-upgrade-linux-image-azure-fde-lts-22-04ubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-azure-lts-20-04ubuntu-upgrade-linux-image-azure-lts-22-04ubuntu-upgrade-linux-image-bluefieldubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-upgrade-linux-image-gcp-lts-20-04ubuntu-upgrade-linux-image-gcp-lts-22-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-64k-hwe-22-04ubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-22-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-15ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-15ubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-ibmubuntu-upgrade-linux-image-ibm-lts-20-04ubuntu-upgrade-linux-image-intelubuntu-upgrade-linux-image-intel-iotgubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-laptop-23-10ubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-64kubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04ubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-hwe-22-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-nvidiaubuntu-upgrade-linux-image-nvidia-6-5ubuntu-upgrade-linux-image-nvidia-64k-6-5ubuntu-upgrade-linux-image-nvidia-64k-hwe-22-04ubuntu-upgrade-linux-image-nvidia-hwe-22-04ubuntu-upgrade-linux-image-nvidia-lowlatencyubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-20-04cubuntu-upgrade-linux-image-oem-20-04dubuntu-upgrade-linux-image-oem-22-04ubuntu-upgrade-linux-image-oem-22-04aubuntu-upgrade-linux-image-oem-22-04bubuntu-upgrade-linux-image-oem-22-04cubuntu-upgrade-linux-image-oem-22-04dubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-64kubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-oracle-lts-20-04ubuntu-upgrade-linux-image-oracle-lts-22-04ubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-starfiveubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-hwe-20-04ubuntu-upgrade-linux-image-virtual-hwe-22-04ubuntu-upgrade-linux-image-virtual-lts-xenialubuntu-upgrade-linux-image-xilinx-zynqmp
References
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.