diff options
Diffstat (limited to 'net-libs/libvncserver/files')
-rw-r--r-- | net-libs/libvncserver/files/libvncserver-0.9.12-sparc-unaligned.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/net-libs/libvncserver/files/libvncserver-0.9.12-sparc-unaligned.patch b/net-libs/libvncserver/files/libvncserver-0.9.12-sparc-unaligned.patch new file mode 100644 index 000000000000..dce787f1295a --- /dev/null +++ b/net-libs/libvncserver/files/libvncserver-0.9.12-sparc-unaligned.patch @@ -0,0 +1,40 @@ +From 0cf1400c61850065de590d403f6d49e32882fd76 Mon Sep 17 00:00:00 2001 +From: Rolf Eike Beer <eike@sf-mail.de> +Date: Tue, 28 May 2019 18:30:46 +0200 +Subject: [PATCH] fix crash because of unaligned accesses in + hybiReadAndDecode() + +--- + libvncserver/ws_decode.c | 7 ++++--- + 1 file changed, 4 insertions(+), 3 deletions(-) + +diff --git a/libvncserver/ws_decode.c b/libvncserver/ws_decode.c +index 441ebc7..10c44d1 100644 +--- a/libvncserver/ws_decode.c ++++ b/libvncserver/ws_decode.c +@@ -327,7 +327,6 @@ hybiReadAndDecode(ws_ctx_t *wsctx, char *dst, int len, int *sockRet, int nInBuf) + int bufsize; + int nextRead; + unsigned char *data; +- uint32_t *data32; + + /* if data was carried over, copy to start of buffer */ + memcpy(wsctx->writePos, wsctx->carryBuf, wsctx->carrylen); +@@ -383,10 +382,12 @@ hybiReadAndDecode(ws_ctx_t *wsctx, char *dst, int len, int *sockRet, int nInBuf) + /* for a possible base64 decoding, we decode multiples of 4 bytes until + * the whole frame is received and carry over any remaining bytes in the carry buf*/ + data = (unsigned char *)(wsctx->writePos - toDecode); +- data32= (uint32_t *)data; + + for (i = 0; i < (toDecode >> 2); i++) { +- data32[i] ^= wsctx->header.mask.u; ++ uint32_t tmp; ++ memcpy(&tmp, data + i * sizeof(tmp), sizeof(tmp)); ++ tmp ^= wsctx->header.mask.u; ++ memcpy(data + i * sizeof(tmp), &tmp, sizeof(tmp)); + } + ws_dbg("mask decoding; i=%d toDecode=%d\n", i, toDecode); + +-- +2.16.4 + |