Re: [PATCH 1/2] mseal: Fix is_madv_discard()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed,  7 Aug 2024 18:33:35 +0100 Pedro Falcato <pedro.falcato@xxxxxxxxx> wrote:

> is_madv_discard did its check wrong. MADV_ flags are not bitwise,
> they're normal sequential numbers. So, for instance:
> 	behavior & (/* ... */ | MADV_REMOVE)
> 
> tagged both MADV_REMOVE and MADV_RANDOM (bit 0 set) as
> discard operations. This is obviously incorrect, so use
> a switch statement instead.

Please describe the userspace-visible runtime effects of this bug?




[Index of Archives]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Share Photos]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]

  Powered by Linux