* [GIT RFC PULL] Fix double dereference in TP_printk() in usb mtu3
@ 2026-10-07 20:23 Paul E. McKenney
2026-10-08 4:47 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Paul E. McKenney @ 2026-10-07 20:23 UTC (permalink / raw)
To: torvalds
Cc: linux-kernel, kernel-team, Vladimir Murzin, Mark Rutland,
Steven Rostedt, Chunfeng Yun, Greg Kroah-Hartman, linux-usb,
linux-arm-kernel, linux-mediatek
Hello, Linus,
Please pull this urgent fix for a tracing splat in usb mtu3, which is a
pre-existing bug that can corrupt tracing output, but which was exposed
this cycle by additional checking that was added to the tracing subsystem.
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git tags/usb-mtu3.2026.10.06a
# HEAD: cfb3293c4573289f11f913611f530ea6b1926d67: usb: mtu3: Fix double dereference in TP_printk (2026-09-29 17:26:50 -0700)
----------------------------------------------------------------
usb: mtu3: Fix a double-dereference splat in TP_printk
This splat is reporting a double-dereference that can result in garbage
traces being dumped due to the possibility of the TP_printk() being
executed without the benefit of main memory being present. The fix is to
move the extra dereference from TP_printk() time to TP_fast_assign() time.
----------------------------------------------------------------
Vladimir Murzin (1):
usb: mtu3: Fix double dereference in TP_printk
drivers/usb/mtu3/mtu3_trace.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [GIT RFC PULL] Fix double dereference in TP_printk() in usb mtu3
2026-10-07 20:23 [GIT RFC PULL] Fix double dereference in TP_printk() in usb mtu3 Paul E. McKenney
@ 2026-10-08 4:47 ` pr-tracker-bot
0 siblings, 0 replies; 2+ messages in thread
From: pr-tracker-bot @ 2026-10-08 4:47 UTC (permalink / raw)
To: Paul E. McKenney
Cc: torvalds, linux-kernel, kernel-team, Vladimir Murzin,
Mark Rutland, Steven Rostedt, Chunfeng Yun, Greg Kroah-Hartman,
linux-usb, linux-arm-kernel, linux-mediatek
The pull request you sent on Wed, 7 Oct 2026 13:23:39 -0700:
> git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git tags/usb-mtu3.2026.10.06a
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/8fc6e594884a65ec99c78ad05e7fae110ad714d9
Thank you!
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