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Grrrr. Remember to bzero() the mediainfo structures after we allocate

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them. If we leave garbage in them, the dc_apply_fixup() routine may
try to follow bogus pointers when applying the reset fixup.

Noticed by: Andrew Gallatin
This commit is contained in:
Bill Paul 2000-11-03 00:03:03 +00:00
parent 477c71bd3f
commit 3019f2bf08
2 changed files with 6 additions and 0 deletions
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3
sys/dev/dc/if_dc.c
View file

@ -1635,6 +1635,7 @@ static void dc_decode_leaf_sia(sc, l)
struct dc_mediainfo *m;
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT);
bzero(m, sizeof(struct dc_mediainfo));
if (l->dc_sia_code == DC_SIA_CODE_10BT)
m->dc_media = IFM_10_T;
@ -1665,6 +1666,7 @@ static void dc_decode_leaf_sym(sc, l)
struct dc_mediainfo *m;
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT);
bzero(m, sizeof(struct dc_mediainfo));
if (l->dc_sym_code == DC_SYM_CODE_100BT)
m->dc_media = IFM_100_TX;
@ -1690,6 +1692,7 @@ static void dc_decode_leaf_mii(sc, l)
struct dc_mediainfo *m;
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT);
bzero(m, sizeof(struct dc_mediainfo));
/* We abuse IFM_AUTO to represent MII. */
m->dc_media = IFM_AUTO;
m->dc_gp_len = l->dc_gpr_len;

3
sys/pci/if_dc.c
View file

@ -1635,6 +1635,7 @@ static void dc_decode_leaf_sia(sc, l)
struct dc_mediainfo *m;
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT);
bzero(m, sizeof(struct dc_mediainfo));
if (l->dc_sia_code == DC_SIA_CODE_10BT)
m->dc_media = IFM_10_T;
@ -1665,6 +1666,7 @@ static void dc_decode_leaf_sym(sc, l)
struct dc_mediainfo *m;
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT);
bzero(m, sizeof(struct dc_mediainfo));
if (l->dc_sym_code == DC_SYM_CODE_100BT)
m->dc_media = IFM_100_TX;
@ -1690,6 +1692,7 @@ static void dc_decode_leaf_mii(sc, l)
struct dc_mediainfo *m;
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT);
bzero(m, sizeof(struct dc_mediainfo));
/* We abuse IFM_AUTO to represent MII. */
m->dc_media = IFM_AUTO;
m->dc_gp_len = l->dc_gpr_len;