Kaixin Wang e51aded92d ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition ... In the switchtec_ntb_add function, it can call switchtec_ntb_init_sndev function, then &sndev->check_link_status_work is bound with check_link_status_work. switchtec_ntb_link_notification may be called to start the work. If we remove the module which will call switchtec_ntb_remove to make cleanup, it will free sndev through kfree(sndev), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | check_link_status_work switchtec_ntb_remove | kfree(sndev); | | if (sndev->link_force_down) | // use sndev Fix it by ensuring that the work is canceled before proceeding with the cleanup in switchtec_ntb_remove. Signed-off-by: Kaixin Wang <kxwang23@m.fudan.edu.cn> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>		2024-09-20 10:50:38 -04:00
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amd
epf
idt	ntb: idt: Fix the cacography in ntb_hw_idt.c	2024-09-20 10:50:38 -04:00
intel
mscc	ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition	2024-09-20 10:50:38 -04:00
Kconfig
Makefile