Takashi Iwai c9a4c63888 ALSA: seq: Fix UBSAN warning at SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT ioctl ... The kernel may spew a WARNING with UBSAN undefined behavior at handling ALSA sequencer ioctl SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT: UBSAN: Undefined behaviour in sound/core/seq/seq_clientmgr.c:2007:14 signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x122/0x1c8 lib/dump_stack.c:113 ubsan_epilogue+0x12/0x86 lib/ubsan.c:159 handle_overflow+0x1c2/0x21f lib/ubsan.c:190 __ubsan_handle_add_overflow+0x2a/0x31 lib/ubsan.c:198 snd_seq_ioctl_query_next_client+0x1ac/0x1d0 sound/core/seq/seq_clientmgr.c:2007 snd_seq_ioctl+0x264/0x3d0 sound/core/seq/seq_clientmgr.c:2144 .... It happens only when INT_MAX is passed there, as we're incrementing it unconditionally. So the fix is trivial, check the value with INT_MAX. Although the bug itself is fairly harmless, it's better to fix it so that fuzzers won't hit this again later. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200211 Signed-off-by: Takashi Iwai <tiwai@suse.de>		2018-06-25 11:18:04 +02:00
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ac97
aoa
arm
atmel
core	ALSA: seq: Fix UBSAN warning at SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT ioctl	2018-06-25 11:18:04 +02:00
drivers	docs: Fix some broken references	2018-06-15 18:10:01 -03:00
firewire	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
hda
i2c
isa
mips
oss	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
parisc
pci	ALSA: hda/realtek - Fix the problem of two front mics on more machines	2018-06-25 10:01:29 +02:00
pcmcia
ppc
sh
soc	- Error path bug fix for overflow tests (Dan)	2018-06-12 18:28:00 -07:00
sparc
spi
synth
usb	sound fixes for 4.18-rc1	2018-06-15 17:24:40 +09:00
x86
xen
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c