CVE-2024-58009

NameCVE-2024-58009
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths. The channel would be removed from the list in short period of time but be a bit more straight-forward here and just check for NULL instead of changing the order of function calls. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-4102-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1vulnerable
bullseye (security)5.10.234-1fixed
bookworm6.1.129-1fixed
bookworm (security)6.1.128-1vulnerable
trixie6.12.20-1fixed
sid6.12.21-1fixed
linux-6.1 (PTS)bullseye (security)6.1.129-1~deb11u1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.234-1
linuxsourcebookworm6.1.129-1
linuxsource(unstable)6.12.15-1
linux-6.1sourcebullseye6.1.129-1~deb11u1DLA-4102-1

Notes

https://git.kernel.org/linus/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1 (6.14-rc1)

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