vnc-enc-tight: Fix divide-by-zero in tight_detect_smooth_image{16,24,32}
Spotted by Coverity: (1) Event assignment: Assigning: "pixels" = "0". (2) Event cond_true: Condition "y < h", taking true branch (3) Event cond_false: Condition "x < w", taking false branch (4) Event loop_end: Reached end of loop (5) Event divide_by_zero: In expression "(stats[0] + stats[1]) * 100U / pixels", division by expression "pixels" which may be zero has undefined behavior. 290 DEFINE_DETECT_FUNCTION(16) 291 DEFINE_DETECT_FUNCTION(32) Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
parent
4006617552
commit
b52991537c
@ -181,6 +181,10 @@ tight_detect_smooth_image24(VncState *vs, int w, int h)
|
||||
}
|
||||
}
|
||||
|
||||
if (pixels == 0) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* 95% smooth or more ... */
|
||||
if (stats[0] * 33 / pixels >= 95) {
|
||||
return 0;
|
||||
@ -267,7 +271,9 @@ tight_detect_smooth_image24(VncState *vs, int w, int h)
|
||||
y += w; \
|
||||
} \
|
||||
} \
|
||||
\
|
||||
if (pixels == 0) { \
|
||||
return 0; \
|
||||
} \
|
||||
if ((stats[0] + stats[1]) * 100 / pixels >= 90) { \
|
||||
return 0; \
|
||||
} \
|
||||
|
Loading…
Reference in New Issue
Block a user