From ad370f7658ba59811d02c04032ac33ef787f752f Mon Sep 17 00:00:00 2001 From: Florian Walpen Date: Fri, 4 Nov 2022 19:04:26 +0100 Subject: [PATCH] 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 MFC after: 1 week Sponsored by: NVIDIA Networking --- 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 15f437b8627..cddc05206c4 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); -- 2.45.2