Commit-ID: 38172403a97828ae2ea12281b19528582d6625d4 Gitweb: http://git.kernel.org/tip/38172403a97828ae2ea12281b19528582d6625d4 Author: Andy Lutomirski <luto@xxxxxxx> AuthorDate: Sun, 5 Jun 2011 13:50:25 -0400 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Mon, 6 Jun 2011 09:43:15 +0200 x86-64: Add CONFIG_UNSAFE_VSYSCALLS to feature-removal-schedule CONFIG_UNSAFE_VSYSCALLS was added in the previous patch as a temporary hack to avoid penalizing users who don't build glibc from git. Signed-off-by: Andy Lutomirski <luto@xxxxxxx> Cc: Jesper Juhl <jj@xxxxxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxx> Cc: Jan Beulich <JBeulich@xxxxxxxxxx> Cc: richard -rw- weinberger <richard.weinberger@xxxxxxxxx> Cc: Mikael Pettersson <mikpe@xxxxxxxx> Cc: Andi Kleen <andi@xxxxxxxxxxxxxx> Cc: Brian Gerst <brgerst@xxxxxxxxx> Cc: Louis Rilling <Louis.Rilling@xxxxxxxxxxx> Cc: Valdis.Kletnieks@xxxxxx Cc: pageexec@xxxxxxxxxxx Link: http://lkml.kernel.org/r/4de62bfbf6974f14d0e9d9ae37cc137dbc926a30.1307292171.git.luto@xxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- Documentation/feature-removal-schedule.txt | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 1a9446b..94b4470 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -600,3 +600,12 @@ Why: Superseded by the UVCIOC_CTRL_QUERY ioctl. Who: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> ---------------------------- + +What: CONFIG_UNSAFE_VSYSCALLS (x86_64) +When: When glibc 2.14 or newer is ubitquitous. Perhaps mid-2012. +Why: Having user-executable code at a fixed address is a security problem. + Turning off CONFIG_UNSAFE_VSYSCALLS mostly removes the risk but will + make the time() function slower on glibc versions 2.13 and below. +Who: Andy Lutomirski <luto@xxxxxxx> + +---------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html