Description
In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: Don't block input queue by waiting MSC Currently gsm_queue() processes incoming frames and when opening a DLC channel it calls gsm_dlci_open() which calls gsm_modem_update(). If basic mode is used it calls gsm_modem_upd_via_msc() and it cannot block the input queue by waiting the response to come into the same input queue. Instead allow sending Modem Status Command without waiting for remote end to respond. Define a new function gsm_modem_send_initial_msc() for this purpose. As MSC is only valid for basic encoding, it does not do anything for advanced or when convergence layer type 2 is used.
Product status
48473802506d2d6151f59e0e764932b33b53cb3b (git) before c36785f9de03df56ff9b8eca30fa681a12b2310d
48473802506d2d6151f59e0e764932b33b53cb3b (git) before 5416e89b81b00443cb03c88df8da097ae091a141
48473802506d2d6151f59e0e764932b33b53cb3b (git) before c5a2791a7f11939f05f95c01f0aec0c55bbf28d5
48473802506d2d6151f59e0e764932b33b53cb3b (git) before 3cf0b3c243e56bc43be560617416c1d9f301f44c
920e849b7d23ced84c9d11e11e2449e34973cfb8 (git)
e83b4e1540469babeffcfd44a605cf8a61542598 (git)
5.18
Any version before 5.18
6.6.112 (semver)
6.12.53 (semver)
6.17.3 (semver)
6.18-rc1 (original_commit_for_fix)
References
git.kernel.org/...c/c36785f9de03df56ff9b8eca30fa681a12b2310d
git.kernel.org/...c/5416e89b81b00443cb03c88df8da097ae091a141
git.kernel.org/...c/c5a2791a7f11939f05f95c01f0aec0c55bbf28d5
git.kernel.org/...c/3cf0b3c243e56bc43be560617416c1d9f301f44c
