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| author |   bluhm <bluhm@openbsd.org> | 2016-05-22 20:27:04 +0000 |
|---|---|---|
| committer | bluhm <bluhm@openbsd.org> | 2016-05-22 20:27:04 +0000 |
| commit | 9ee302b807409cb1f9713adc404a77fe222e525c (patch) | |
| tree | aa5fe5ae4375c8135911855d360673c191e7e222 /lib/libkvm/kvm_proc.c | |
| parent | makes sure the value of the asprintf buffer is zeroed on error (diff) | |
| download | wireguard-openbsd-9ee302b807409cb1f9713adc404a77fe222e525c.tar.xz wireguard-openbsd-9ee302b807409cb1f9713adc404a77fe222e525c.zip | |
When pulling an msdos formated umass stick during mount while the
usb stack was busy, the kernel could trigger an uvm fault. There
is a race between vop_generic_revoke() and sys_mount() where vgonel()
could reset v_specinfo. Then v_specmountpoint is no longer valid.
So after sleeping, msdosfs_mountfs() could crash in the error path.
The code in the different *_mountfs() functions was inconsistent,
implement the same check everywhere.
OK krw@ natano@
Diffstat (limited to 'lib/libkvm/kvm_proc.c')
0 files changed, 0 insertions, 0 deletions