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| author | Jacques Vidrine <nectar@FreeBSD.org> | 2003-10-03 13:07:38 +0000 |
|---|---|---|
| committer | Jacques Vidrine <nectar@FreeBSD.org> | 2003-10-03 13:07:38 +0000 |
| commit | 13bba0f1a042803c0d4e5135d0d34ae838a3f9c3 (patch) | |
| tree | 903d1ccf3f7820a73e1814c045e67c9f2a44c552 /sys/miscfs/procfs/procfs_fpregs.c | |
| parent | 2dedd3f3699b615fdeabd02fe6544ad15764db9d (diff) | |
| download | src-13bba0f1a042803c0d4e5135d0d34ae838a3f9c3.tar.gz src-13bba0f1a042803c0d4e5135d0d34ae838a3f9c3.zip | |
Merge from RELENG_4: kern_subr.c 1.31.2.3, procfs_dbregs.c 1.4.2.4,
procfs_fpregs.c 1.11.2.4, procfs_regs.c 1.10.2.4,
procfs_rlimit.c 1.5.2.1, procfs_status.c 1.20.2.5, uio.h 1.11.2.2,
linprocfs_misc.c 1.3.2.9.
Correct several integer underflows/overflows in procfs and linprocfs.
Notes
Notes:
svn path=/releng/4.4/; revision=120689
Diffstat (limited to 'sys/miscfs/procfs/procfs_fpregs.c')
| -rw-r--r-- | sys/miscfs/procfs/procfs_fpregs.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/sys/miscfs/procfs/procfs_fpregs.c b/sys/miscfs/procfs/procfs_fpregs.c index 7074148cfbfc..c8afd55d96d9 100644 --- a/sys/miscfs/procfs/procfs_fpregs.c +++ b/sys/miscfs/procfs/procfs_fpregs.c @@ -56,30 +56,18 @@ procfs_dofpregs(curp, p, pfs, uio) { int error; struct fpreg r; - char *kv; - int kl; /* Can't trace a process that's currently exec'ing. */ if ((p->p_flag & P_INEXEC) != 0) return EAGAIN; if (!CHECKIO(curp, p) || p_trespass(curp, p)) return EPERM; - kl = sizeof(r); - kv = (char *) &r; - - kv += uio->uio_offset; - kl -= uio->uio_offset; - if (kl > uio->uio_resid) - kl = uio->uio_resid; PHOLD(p); - if (kl < 0) - error = EINVAL; - else - error = procfs_read_fpregs(p, &r); + error = procfs_read_fpregs(p, &r); if (error == 0) - error = uiomove(kv, kl, uio); + error = uiomove_frombuf(&r, sizeof(r), uio); if (error == 0 && uio->uio_rw == UIO_WRITE) { if (p->p_stat != SSTOP) error = EBUSY; |