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| author | Junrui Luo <moonafterrain@outlook.com> | 2026-03-23 15:31:56 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-22 13:32:18 +0200 |
| commit | daf6733bd7c4c5015b431739ac29b0e29021096b (patch) | |
| tree | 599571055474f34fb8c979046de2f90c219b097c /scripts/objdiff | |
| parent | 25a827b7e1d5747a255bdc757f1d3e9e1e8a4e2a (diff) | |
| download | kernel-daf6733bd7c4c5015b431739ac29b0e29021096b.tar.gz | |
staging: sm750fb: fix division by zero in ps_to_hz()
commit 75a1621e4f91310673c9acbcbb25c2a7ff821cd3 upstream.
ps_to_hz() is called from hw_sm750_crtc_set_mode() without validating
that pixclock is non-zero. A zero pixclock passed via FBIOPUT_VSCREENINFO
causes a division by zero.
Fix by rejecting zero pixclock in lynxfb_ops_check_var(), consistent
with other framebuffer drivers.
Fixes: 81dee67e215b ("staging: sm750fb: add sm750 to staging")
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Link: https://patch.msgid.link/SYBPR01MB7881AFBFCE28CCF528B35D0CAF4BA@SYBPR01MB7881.ausprd01.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/objdiff')
0 files changed, 0 insertions, 0 deletions