Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: rapidio/tsi721: prevent a bad dereference in tsi721_db_dpc() With a list_for_each() loop, if we don't find the item we are looking for in the list, then the loop exits with the iterator, which is "dbell" in this loop, pointing to invalid memory. This code uses the "found" variable to determine if we have found the doorbell we are looking for or not. However, the problem that the "found" variable needs to be set to false at the start of each iteration, otherwise after the first correct doorbell, then everything is marked as found. Reset the "found" to false at the start of the iteration and move the variable inside the loop.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 48618fb4e522d9d02e217ac05f52749545c1af20 before 9e775c3199903d7c09a52530042b1198eab705bd; affected 48618fb4e522d9d02e217ac05f52749545c1af20 before 81c06ef66c3ab6eeaa72eb790c90ae043cdb3d43; affected 48618fb4e522d9d02e217ac05f52749545c1af20 before 13092966ba5d8fb214a4efeddc87f9ed0fd2f945; affected 48618fb4e522d9d02e217ac05f52749545c1af20 before acd54f42abbbd806464468838dbc04efd203d2be; affected 48618fb4e522d9d02e217ac05f52749545c1af20 before 3b5c66e922aa6a3331915a14520848a5b3beccc7; affected 48618fb4e522d9d02e217ac05f52749545c1af20 before 070f356ea4f419e4e85e4089381f4477f41d969e; affected 48618fb4e522d9d02e217ac05f52749545c1af20 before dc28a14f3e4546b2b06098d24177942540581a5f; affected 48618fb4e522d9d02e217ac05f52749545c1af20 before fc15e3a30ddd950f009c76765331783b9af94a87 |
| Linux / Linux | affected 3.2; unaffected 0 before 3.2; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9e775c3199903d7c09a52530042b1198eab705bd
- https://git.kernel.org/stable/c/81c06ef66c3ab6eeaa72eb790c90ae043cdb3d43
- https://git.kernel.org/stable/c/13092966ba5d8fb214a4efeddc87f9ed0fd2f945
- https://git.kernel.org/stable/c/acd54f42abbbd806464468838dbc04efd203d2be
- https://git.kernel.org/stable/c/3b5c66e922aa6a3331915a14520848a5b3beccc7
- https://git.kernel.org/stable/c/070f356ea4f419e4e85e4089381f4477f41d969e
- https://git.kernel.org/stable/c/dc28a14f3e4546b2b06098d24177942540581a5f
- https://git.kernel.org/stable/c/fc15e3a30ddd950f009c76765331783b9af94a87