On Mon, Jan 18, 2021 at 01:57:00PM +0000, Will Deacon wrote: > commit dca5244d2f5b94f1809f0c02a549edf41ccd5493 upstream. > > GCC versions >= 4.9 and < 5.1 have been shown to emit memory references > beyond the stack pointer, resulting in memory corruption if an interrupt > is taken after the stack pointer has been adjusted but before the > reference has been executed. This leads to subtle, infrequent data > corruption such as the EXT4 problems reported by Russell King at the > link below. > > Life is too short for buggy compilers, so raise the minimum GCC version > required by arm64 to 5.1. > > Reported-by: Russell King <linux@xxxxxxxxxxxxxxx> > Suggested-by: Arnd Bergmann <arnd@xxxxxxxxxx> > Signed-off-by: Will Deacon <will@xxxxxxxxxx> > Tested-by: Nathan Chancellor <natechancellor@xxxxxxxxx> > Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> > Reviewed-by: Nathan Chancellor <natechancellor@xxxxxxxxx> > Acked-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > Cc: <stable@xxxxxxxxxxxxxxx> # 4.19.y and 5.4.y only All now queued up, thanks! greg k-h
