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[seccomp] allow ioctl(FIONREAD) 

it's needed by bufferevent_read
This commit is contained in:
Omar Polo 2021-09-26 20:00:38 +00:00
parent 2a44a2ab6e
commit 6f27d2595a
1 changed files with 3 additions and 1 deletions
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4
sandbox.c
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@ -320,8 +320,10 @@ static struct sock_filter filter[] = {
SC_ALLOW(gettimeofday),
#endif
#ifdef __NR_ioctl
/* allow ioctl only on fd 1, glibc doing stuff? */
/* allow ioctl on fd 1, glibc doing stuff? */
SC_ALLOW_ARG(__NR_ioctl, 0, 1),
/* allow FIONREAD needed by libevent */
SC_ALLOW_ARG(__NR_ioctl, 1, FIONREAD),
#endif
#ifdef __NR_lseek
SC_ALLOW(lseek),