Description
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Fix use-after-free in driver remove() In the remove callback, if a packet arrives after destroy_workqueue() is called, but before sock_release(), the qrtr_ns_data_ready() callback will try to queue the work, causing use-after-free issue. Fix this issue by saving the default 'sk_data_ready' callback during qrtr_ns_init() and use it to replace the qrtr_ns_data_ready() callback at the start of remove(). This ensures that even if a packet arrives after destroy_workqueue(), the work struct will not be dereferenced. Note that it is also required to ensure that the RX threads are completed before destroying the workqueue, because the threads could be using the qrtr_ns_data_ready() callback.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
0c2204a4ad710d95d348ea006f14ba926e842ffd to < 65168712c216584ff482a7d1a67589f2079b2634affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < dff081c3602f2fd810f69ef47945a226980dd05daffected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 4ae0bd51bf7079e9c2a06b5de0ae04ba70d10167affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 0f313eb6a8f6dffa491373cf3afab979fa1c02f4affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < db3c60ec772de30acae92d560dfcc5258e58dbe8affected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 2e127ceb1c415e246076d8e09e23e443a7a2038faffected0c2204a4ad710d95d348ea006f14ba926e842ffd to < f96779e916576e81430ebb326baff6e433fef8aeaffected0c2204a4ad710d95d348ea006f14ba926e842ffd to < 7809fea20c9404bfcfa6112ec08d1fe1d3520bebaffected
Linux Linux
Default version status: affected
5.7affected0 to < 5.7unaffected5.10.258 to ≤ 5.10.*unaffected5.15.209 to ≤ 5.15.*unaffected6.1.175 to ≤ 6.1.*unaffected6.6.140 to ≤ 6.6.*unaffected6.12.86 to ≤ 6.12.*unaffected6.18.27 to ≤ 6.18.*unaffected7.0.4 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/65168712c216584ff482a7d1a67589f2079b2634 ↗
- https://git.kernel.org/stable/c/dff081c3602f2fd810f69ef47945a226980dd05d ↗
- https://git.kernel.org/stable/c/4ae0bd51bf7079e9c2a06b5de0ae04ba70d10167 ↗
- https://git.kernel.org/stable/c/0f313eb6a8f6dffa491373cf3afab979fa1c02f4 ↗
- https://git.kernel.org/stable/c/db3c60ec772de30acae92d560dfcc5258e58dbe8 ↗
- https://git.kernel.org/stable/c/2e127ceb1c415e246076d8e09e23e443a7a2038f ↗
- https://git.kernel.org/stable/c/f96779e916576e81430ebb326baff6e433fef8ae ↗
- https://git.kernel.org/stable/c/7809fea20c9404bfcfa6112ec08d1fe1d3520beb ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗