Re: [PATCH v3 1/2] arm64/crash_core: Export KERNELPACMASK in vmcoreinfo

2020-05-11 Thread Will Deacon
On Mon, 11 May 2020 18:31:55 +0530, Amit Daniel Kachhap wrote: > Recently arm64 linux kernel added support for Armv8.3-A Pointer > Authentication feature. If this feature is enabled in the kernel and the > hardware supports address authentication then the return addresses are > signed and stored in

[PATCH v3 1/2] arm64/crash_core: Export KERNELPACMASK in vmcoreinfo

2020-05-11 Thread Amit Daniel Kachhap
Recently arm64 linux kernel added support for Armv8.3-A Pointer Authentication feature. If this feature is enabled in the kernel and the hardware supports address authentication then the return addresses are signed and stored in the stack to prevent ROP kind of attack. Kdump tool will now dump the