Date: Sat, 12 Nov 2022 12:41:49 GMT From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: f0a3d2341d34 - stable/13 - sound(4): Fix memory map of /dev/dsp devices when buffer size is not a multiple of PAGE_SIZE. Message-ID: <202211121241.2ACCfnVp054901@gitrepo.freebsd.org>
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The branch stable/13 has been updated by hselasky: URL: https://cgit.FreeBSD.org/src/commit/?id=f0a3d2341d345121c92e01f03d439b054f69793c commit f0a3d2341d345121c92e01f03d439b054f69793c Author: Florian Walpen <dev@submerge.ch> AuthorDate: 2022-11-04 18:04:26 +0000 Commit: Hans Petter Selasky <hselasky@FreeBSD.org> CommitDate: 2022-11-12 12:00:01 +0000 sound(4): Fix memory map of /dev/dsp devices when buffer size is not a multiple of PAGE_SIZE. By using sndbuf_getallocsize() instead of sndbuf_getsize() in dsp_mmap_single(). PR: 267555 Sponsored by: NVIDIA Networking (cherry picked from commit ad370f7658ba59811d02c04032ac33ef787f752f) --- sys/dev/sound/pcm/dsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/dev/sound/pcm/dsp.c b/sys/dev/sound/pcm/dsp.c index 15f437b8627c..cddc05206c4d 100644 --- a/sys/dev/sound/pcm/dsp.c +++ b/sys/dev/sound/pcm/dsp.c @@ -2291,7 +2291,7 @@ dsp_mmap_single(struct cdev *i_dev, vm_ooffset_t *offset, c = ((nprot & PROT_WRITE) != 0) ? wrch : rdch; if (c == NULL || (c->flags & CHN_F_MMAP_INVALID) || - (*offset + size) > sndbuf_getsize(c->bufsoft) || + (*offset + size) > sndbuf_getallocsize(c->bufsoft) || (wrch != NULL && (wrch->flags & CHN_F_MMAP_INVALID)) || (rdch != NULL && (rdch->flags & CHN_F_MMAP_INVALID))) { relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
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