Saturday, May 15, 2021

CVE-2021-33034

Description

In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.

References to Advisories, Solutions, and Tools


References to Advisories, Solutions, and Tools

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Resourcehttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5c4c8c9544099bb9043a10a5318130a943e32fc3https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-hci_send_aclhttps://syzkaller.appspot.com/bug?id=2e1943a94647f7732dd6fc60368642d6e8dc91b1
 

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