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| author | kib <kib@FreeBSD.org> | 2009-10-27 10:47:58 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2009-10-27 10:47:58 +0000 |
| commit | ce081b037e7a762f0dd090a207cafc5121f39f51 (patch) | |
| tree | 359a5b0885ae5a789f55ba40dc485621e67c34b1 /sys/kern/subr_devstat.c | |
| parent | eb4c68098b66d84de3abc7be00acfdc6d2f8f980 (diff) | |
| download | FreeBSD-src-ce081b037e7a762f0dd090a207cafc5121f39f51.zip FreeBSD-src-ce081b037e7a762f0dd090a207cafc5121f39f51.tar.gz | |
In r197963, a race with thread being selected for signal delivery
while in kernel mode, and later changing signal mask to block the
signal, was fixed for sigprocmask(2) and ptread_exit(3). The same race
exists for sigreturn(2), setcontext(2) and swapcontext(2) syscalls.
Use kern_sigprocmask() instead of direct manipulation of td_sigmask to
reschedule newly blocked signals, closing the race.
Reviewed by: davidxu
Tested by: pho
MFC after: 1 month
Diffstat (limited to 'sys/kern/subr_devstat.c')
0 files changed, 0 insertions, 0 deletions
