Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: firewire: cdev: fix back-transition for iso_resource_auto client resource The todo member of iso_resource_auto structure represents the state of the client resource and normally transitions in the following order: ISO_RES_AUTO_ALLOC -> ISO_RES_AUTO_REALLOC -> ISO_RES_AUTO_DEALLOC However, concurrent access from the work item and the file descriptor release function can cause the state to transition backwards from ISO_RES_AUTO_DEALLOC to ISO_RES_AUTO_REALLOC. Prevent the back-transition by checking the current state before updating it in the work item.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected fcabbf40fae501379b4f3a057febe92d4b0ebdd8 before ee1df60a0d0e8ab4b00137135733bdadd6d33dab; affected fcabbf40fae501379b4f3a057febe92d4b0ebdd8 before c6b51091cafff9ce6c03c1416aa13864d17ab97c |
| Linux / Linux | affected 7.2; unaffected 0 before 7.2; unaffected 7.2.9 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.