[LTP] [PATCH v6] Refactor fork14 using new LTP API
Petr Vorel
pvorel@suse.cz
Wed May 15 15:17:19 CEST 2024
Hi Andrea,
...
> +/*\
> + * [Description]
> *
> * This test is a reporducer for this patch:
s/reporducer/reproducer/
> + * https://lore.kernel.org/lkml/1335289853-2923-1-git-send-email-siddhesh.poyarekar@gmail.com/
> * Since vma length in dup_mmap is calculated and stored in a unsigned
> * int, it will overflow when length of mmaped memory > 16 TB. When
> + * overflow occurs, fork will incorrectly succeed. The patch above fixed it.
> + */
nit: this has been merged to mainline long time ago (kernel 3.5). I'll change before merge to:
/*\
* [Description]
*
* This test is a reproducer for kernel 3.5:
* 7edc8b0ac16c ("mm/fork: fix overflow in vma length when copying mmap on clone")
*
* Since VMA length in dup_mmap() is calculated and stored in a unsigned
* int, it will overflow when length of mmaped memory > 16 TB. When
* overflow occurs, fork will incorrectly succeed. The patch above fixed it.
*/
Kind regards,
Petr
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