Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix match incorrectly in dev_args_match_device syzkaller found a failed assertion: assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921 This can be triggered when we set devid to (u64)-1 by ioctl. In this case, the match of devid will be skipped and the match of device may succeed incorrectly. Patch 562d7b1512f7 introduced this function which is used to match device. This function contains two matching scenarios, we can distinguish them by checking the value of args->missing rather than check whether args->devid and args->uuid is default value.
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
5578b681fbf2b22d61189a2539efd3009518b328 to < c9fe4719c662e0af17eea723cf345e37719fd3c9affected562d7b1512f7369a19bca2883e2e8672d78f0481 to < bc6c127c377010f136360552ebf91c2723081c1baffected562d7b1512f7369a19bca2883e2e8672d78f0481 to < 0fca385d6ebc3cabb20f67bcf8a71f1448bdc001affected5.15.54 to < 5.15.79affected
Linux Linux
Default version status: affected
5.16affected0 to < 5.16unaffected5.15.79 to ≤ 5.15.*unaffected6.0.9 to ≤ 6.0.*unaffected6.1 to ≤ *unaffected