Re: [PATCH v4 1/1] exec: seal system mappings

2024-12-04 Thread Benjamin Berg
Hi, On Wed, 2024-12-04 at 09:43 -0800, Jeff Xu wrote: > On Wed, Dec 4, 2024 at 6:04 AM Benjamin Berg > wrote: > > On Mon, 2024-11-25 at 20:20 +, jef...@chromium.org wrote: > > > From: Jeff Xu > > > > > > Seal vdso, vvar, sigpage, uprobes and vsyscall. > > > > > > Those mappings are readon

Re: [PATCH v4 1/1] exec: seal system mappings

2024-12-04 Thread Jeff Xu
On Wed, Dec 4, 2024 at 6:04 AM Benjamin Berg wrote: > > Hi, > > On Mon, 2024-11-25 at 20:20 +, jef...@chromium.org wrote: > > From: Jeff Xu > > > > Seal vdso, vvar, sigpage, uprobes and vsyscall. > > > > Those mappings are readonly or executable only, sealing can protect > > them from ever ch

Re: [PATCH v4 1/1] exec: seal system mappings

2024-12-04 Thread Benjamin Berg
Hi, On Mon, 2024-11-25 at 20:20 +, jef...@chromium.org wrote: > From: Jeff Xu > > Seal vdso, vvar, sigpage, uprobes and vsyscall. > > Those mappings are readonly or executable only, sealing can protect > them from ever changing or unmapped during the life time of the process. > For complete