CVE-2024-58009

Summary

In 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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf6ad641646b67f29c7578dcd6c25813c7dcbf51e < a9a7672fc1a0fe18502493936ccb06413ab89ea6affected
LinuxLinuxdaa13175a6dea312a76099066cb4cbd4fc959a84 < 8e605f580a97530e5a3583beea458a3fa4cbefbdaffected
LinuxLinuxa8677028dd5123e5e525b8195483994d87123de4 < cf601a24120c674cd7c907ea695f92617af6abd0affected
LinuxLinuxbb2f2342a6ddf7c04f9aefbbfe86104cd138e629 < 297ce7f544aa675b0d136d788cad0710cdfb0785affected
LinuxLinux8ad09ddc63ace3950ac43db6fbfe25b40f589dd6 < 245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22affected
LinuxLinux61686abc2f3c2c67822aa23ce6f160467ec83d35 < 691218a50c3139f7f57ffa79fb89d932eda9571eaffected
LinuxLinux7c4f78cdb8e7501e9f92d291a7d956591bf73be9 < 49c0d55d59662430f1829ae85b969619573d0fa1affected
LinuxLinux7c4f78cdb8e7501e9f92d291a7d956591bf73be9 < 5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1affected
LinuxLinux5.4.287 < 5.4.291affected
LinuxLinux5.10.231 < 5.10.235affected
LinuxLinux5.15.174 < 5.15.179affected
LinuxLinux6.1.120 < 6.1.129affected
LinuxLinux6.6.66 < 6.6.78affected
LinuxLinux6.12.5 < 6.12.14affected
LinuxLinux6.13affected
LinuxLinux0 < 6.13unaffected
LinuxLinux5.4.291 <= 5.4.*unaffected
LinuxLinux5.10.235 <= 5.10.*unaffected
LinuxLinux5.15.179 <= 5.15.*unaffected
LinuxLinux6.1.129 <= 6.1.*unaffected
LinuxLinux6.6.78 <= 6.6.*unaffected
LinuxLinux6.12.14 <= 6.12.*unaffected
LinuxLinux6.13.3 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

Additional References

References