Andrey Konovalov f85d39dd7e kcov, usb: disable interrupts in kcov_remote_start_usb_softirq ... After commit 8fea0c8fda ("usb: core: hcd: Convert from tasklet to BH workqueue"), usb_giveback_urb_bh() runs in the BH workqueue with interrupts enabled. Thus, the remote coverage collection section in usb_giveback_urb_bh()-> __usb_hcd_giveback_urb() might be interrupted, and the interrupt handler might invoke __usb_hcd_giveback_urb() again. This breaks KCOV, as it does not support nested remote coverage collection sections within the same context (neither in task nor in softirq). Update kcov_remote_start/stop_usb_softirq() to disable interrupts for the duration of the coverage collection section to avoid nested sections in the softirq context (in addition to such in the task context, which are already handled). Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Closes: https://lore.kernel.org/linux-usb/0f4d1964-7397-485b-bc48-11c01e2fcbca@I-love.SAKURA.ne.jp/ Closes: https://syzkaller.appspot.com/bug?extid=0438378d6f157baae1a2 Suggested-by: Alan Stern <stern@rowland.harvard.edu> Fixes: 8fea0c8fda ("usb: core: hcd: Convert from tasklet to BH workqueue") Cc: stable@vger.kernel.org Acked-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com> Link: https://lore.kernel.org/r/20240527173538.4989-1-andrey.konovalov@linux.dev Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-06-04 15:34:44 +02:00
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acpi	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
asm-generic	asm-generic cleanups for 6.10	2024-05-20 15:18:34 -07:00
clocksource
crypto	This push fixes a bug in the new ecc P521 code as well as a buggy	2024-05-20 08:47:54 -07:00
drm	Short summary of fixes pull:	2024-05-27 13:47:14 +10:00
dt-bindings	- Core Frameworks	2024-05-22 10:49:54 -07:00
keys
kunit
kvm
linux	kcov, usb: disable interrupts in kcov_remote_start_usb_softirq	2024-06-04 15:34:44 +02:00
math-emu
media
memory
misc
net	net: fix __dst_negative_advice() race	2024-05-29 17:34:49 -07:00
pcmcia
ras	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
rdma	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
rv
scsi	SCSI misc on 20240514	2024-05-14 18:25:53 -07:00
soc	I'm actually surprised this time. There aren't any new Qualcomm SoC clk	2024-05-18 12:48:37 -07:00
sound	ALSA: pcm: fix typo in comment	2024-05-29 10:40:36 +02:00
target
trace	block-6.10-20240523	2024-05-23 13:44:47 -07:00
uapi	TTY fix for 6.10-rc2	2024-06-01 08:53:39 -07:00
ufs
vdso
video
xen