CVE-2024-26801 Affecting perf package, versions <0:4.18.0-477.64.1.el8_8
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Test your applications- Snyk ID SNYK-RHEL8-PERF-7555653
- published 24 Jul 2024
- disclosed 4 Apr 2024
Introduced: 4 Apr 2024
CVE-2024-26801 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-477.64.1.el8_8 or higher.
This issue was patched in RHSA-2024:4740.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2024-26801
- https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592
- https://git.kernel.org/stable/c/2ab9a19d896f5a0dd386e1f001c5309bc35f433b
- https://git.kernel.org/stable/c/45085686b9559bfbe3a4f41d3d695a520668f5e1
- https://git.kernel.org/stable/c/6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2
- https://git.kernel.org/stable/c/98fb98fd37e42fd4ce13ff657ea64503e24b6090
- https://git.kernel.org/stable/c/da4569d450b193e39e87119fd316c0291b585d14
- https://git.kernel.org/stable/c/dd594cdc24f2e48dab441732e6dfcafd6b0711d1
- https://git.kernel.org/stable/c/e0b278650f07acf2e0932149183458468a731c03
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html