Re: mmap bug in 2.2.13 (or in documentation)

Jamie Lokier (lkd@tantalophile.demon.co.uk)
Wed, 29 Dec 1999 14:23:25 +0000

Messages sorted by: [ date ][ thread ][ subject ][ author ]
Next message: Robert Dinse: "Re: Unexecutable Stack / Buffer Overflow Exploits..."
Previous message: Horst von Brand: "Re: Unexecutable stack"
Maybe in reply to: Abramo Bagnara: "mmap bug in 2.2.13 (or in documentation)"
Next in thread: Abramo Bagnara: "Re: mmap bug in 2.2.13 (or in documentation)"

Abramo Bagnara wrote:
> As I'm unable to understand why a file opened WR_ONLY cannot be mmap'ed
> PROT_WRITE, MAP_SHARED I deduce that a break is missing at line 222.

On some platforms (i386), PROT_WRITE is equivalent to PROT_READ |
PROT_WRITE. The processor provides no mechanism for write-only access.

-- Jamie

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

Next message: Robert Dinse: "Re: Unexecutable Stack / Buffer Overflow Exploits..."
Previous message: Horst von Brand: "Re: Unexecutable stack"
Maybe in reply to: Abramo Bagnara: "mmap bug in 2.2.13 (or in documentation)"
Next in thread: Abramo Bagnara: "Re: mmap bug in 2.2.13 (or in documentation)"