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SubjectRe: [syzbot] memory leak in xas_nomem
On Fri, May 27, 2022 at 08:20:21PM -0700, syzbot wrote:
> BUG: memory leak
> unreferenced object 0xffff88810cb35d80 (size 576):
> comm "syz-executor883", pid 3623, jiffies 4294954631 (age 23.510s)
> hex dump (first 32 bytes):
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 18 48 36 04 81 88 ff ff 98 5d b3 0c 81 88 ff ff .H6......]......
> backtrace:
> [<ffffffff8247dfba>] xas_nomem lib/xarray.c:307 [inline]
> [<ffffffff8247dfba>] xas_nomem+0x4a/0xd0 lib/xarray.c:299
> [<ffffffff8157b8d0>] split_huge_page_to_list+0x26d0/0x29f0 mm/huge_memory.c:2626

#syz test: git://git.infradead.org/users/willy/pagecache.git for-next

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