In the Linux kernel, the following vulnerability has been resolved:
vduse: Fix race in vduse_dev_msg_sync and vduse_dev_read_iter
There is one race case in vduse_dev_msg_sync and vduse_dev_read_iter:
vduse_dev_read_iter():
lock(msg_lock);
dequeue_msg(send_list);
unlock(msg_lock);
vduse_dev_msg_sync():
wait_timeout() finish
lock(msg_lock);
check msg->complete is false
list_del(msg); <- double list_del() crash!
To fix this case, we shall ensure vduse_msg is on send_list or recv_list
outside the msg_lock critical section.
from c8a6153b6c59d95c0e091f053f6f180952ade91e before c83ad3dfa6d9953d5ce6839416bf5a1bfc50285a; from c8a6153b6c59d95c0e091f053f6f180952ade91e before 09723f26ed801c083e914cec4cc0e1af4b933dc7; from c8a6153b6c59d95c0e091f053f6f180952ade91e before d7e7c813834c6c05c26033456ab7169e2f9c99eb; from c8a6153b6c59d95c0e091f053f6f180952ade91e before 3755965adbb617f4283ac6ccd351ed0676843cba; from c8a6153b6c59d95c0e091f053f6f180952ade91e before d8715b5a8fdb23fef576700e71d0c253dbeddad4; from c8a6153b6c59d95c0e091f053f6f180952ade91e before 8062ff9d366c4bc4ae775e14eac9a769f20c60dd; from c8a6153b6c59d95c0e091f053f6f180952ade91e before ae9c13b6fd79087cc5a216ee1649b6f012c2a238
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.
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