Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: s390/qeth: fix deadlock during failing recovery Commit 0b9902c1fcc5 ("s390/qeth: fix deadlock during recovery") removed taking discipline_mutex inside qeth_do_reset(), fixing potential deadlocks. An error path was missed though, that still takes discipline_mutex and thus has the original deadlock potential. Intermittent deadlocks were seen when a qeth channel path is configured offline, causing a race between qeth_do_reset and ccwgroup_remove. Call qeth_set_offline() directly in the qeth_do_reset() error case and then a new variant of ccwgroup_set_offline(), without taking discipline_mutex.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b41b554c1ee75070a14c02a88496b1f231c7eacc before 0bfe741741327822d1482c7edef0184636d08b40; affected b41b554c1ee75070a14c02a88496b1f231c7eacc before d2b59bd4b06d84a4eadb520b0f71c62fe8ec0a62; affected af0c184ea106051e428b5a0b5f2dfd31cbc54c52; affected 5.10.8 before 5.11 |
| Linux / Linux | affected 5.11; unaffected 0 before 5.11; unaffected 5.14.10 through 5.14.*; unaffected 5.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0bfe741741327822d1482c7edef0184636d08b40
- https://git.kernel.org/stable/c/d2b59bd4b06d84a4eadb520b0f71c62fe8ec0a62
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.