NULL Pointer Dereference Affecting kernel-core package, versions *
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-7789266
- published 22 Aug 2024
- disclosed 21 Aug 2024
Introduced: 21 Aug 2024
CVE-2023-52898 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:9 kernel-core.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
xhci: Fix null pointer dereference when host dies
Make sure xhci_free_dev() and xhci_kill_endpoint_urbs() do not race and cause null pointer dereference when host suddenly dies.
Usb core may call xhci_free_dev() which frees the xhci->devs[slot_id] virt device at the same time that xhci_kill_endpoint_urbs() tries to loop through all the device's endpoints, checking if there are any cancelled urbs left to give back.
hold the xhci spinlock while freeing the virt device
References
- https://access.redhat.com/security/cve/CVE-2023-52898
- https://git.kernel.org/stable/c/081105213ff6f661c114781d469233c7d0e09c2e
- https://git.kernel.org/stable/c/133b902378e4acbd824c29dd0d48570ad596e368
- https://git.kernel.org/stable/c/6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1
- https://git.kernel.org/stable/c/a2bc47c43e70cf904b1af49f76d572326c08bca7
- https://git.kernel.org/stable/c/c462ac871f49753eca86bb960f573b993976a5ea
- https://git.kernel.org/stable/c/ea2ee5e9991caf74e0604f994c1831a5867055b2