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Open Source and information security mailing list archives
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Date: Thu, 23 Sep 2021 12:18:46 +0000 From: "Marciniszyn, Mike" <mike.marciniszyn@...nelisnetworks.com> To: Leon Romanovsky <leon@...nel.org> CC: Bart Van Assche <bvanassche@....org>, Guo Zhi <qtxuning1999@...u.edu.cn>, "Dalessandro, Dennis" <dennis.dalessandro@...nelisnetworks.com>, "dledford@...hat.com" <dledford@...hat.com>, "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: RE: [PATCH] infiniband hfi1: fix misuse of %x in ipoib_tx.c > > > > > > > It doesn't look like that works in irqs, softirqs. > > Are you certain about it? > > That sysctl is supposed to control the output of %p, nothing more. > Actually I think is controls %pK. The code here is what I was referring to. /* * kptr_restrict==1 cannot be used in IRQ context * because its test for CAP_SYSLOG would be meaningless. */ if (in_irq() || in_serving_softirq() || in_nmi()) { if (spec.field_width == -1) spec.field_width = 2 * sizeof(ptr); return error_string(buf, end, "pK-error", spec); } Mike
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