Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f6ad641646b67f29c7578dcd6c25813c7dcbf51e before a9a7672fc1a0fe18502493936ccb06413ab89ea6; affected daa13175a6dea312a76099066cb4cbd4fc959a84 before 8e605f580a97530e5a3583beea458a3fa4cbefbd; affected a8677028dd5123e5e525b8195483994d87123de4 before cf601a24120c674cd7c907ea695f92617af6abd0; affected bb2f2342a6ddf7c04f9aefbbfe86104cd138e629 before 297ce7f544aa675b0d136d788cad0710cdfb0785; affected 8ad09ddc63ace3950ac43db6fbfe25b40f589dd6 before 245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22; affected 61686abc2f3c2c67822aa23ce6f160467ec83d35 before 691218a50c3139f7f57ffa79fb89d932eda9571e; affected 7c4f78cdb8e7501e9f92d291a7d956591bf73be9 before 49c0d55d59662430f1829ae85b969619573d0fa1; affected 7c4f78cdb8e7501e9f92d291a7d956591bf73be9 before 5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1; affected 5.4.287 before 5.4.291; affected 5.10.231 before 5.10.235; affected 5.15.174 before 5.15.179; affected 6.1.120 before 6.1.129; affected 6.6.66 before 6.6.78; affected 6.12.5 before 6.12.14 |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 5.4.291 through 5.4.*; unaffected 5.10.235 through 5.10.*; unaffected 5.15.179 through 5.15.*; unaffected 6.1.129 through 6.1.*; unaffected 6.6.78 through 6.6.*; unaffected 6.12.14 through 6.12.*; unaffected 6.13.3 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a9a7672fc1a0fe18502493936ccb06413ab89ea6
- https://git.kernel.org/stable/c/8e605f580a97530e5a3583beea458a3fa4cbefbd
- https://git.kernel.org/stable/c/cf601a24120c674cd7c907ea695f92617af6abd0
- https://git.kernel.org/stable/c/297ce7f544aa675b0d136d788cad0710cdfb0785
- https://git.kernel.org/stable/c/245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22
- https://git.kernel.org/stable/c/691218a50c3139f7f57ffa79fb89d932eda9571e
- https://git.kernel.org/stable/c/49c0d55d59662430f1829ae85b969619573d0fa1
- https://git.kernel.org/stable/c/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1
ADP enrichment
No English description supplied.
No English description supplied.