[merged] mm-swap-fix-swap-space-leak-in-error-path-of-swap_free_entries.patch removed from -mm tree

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

 



The patch titled
     Subject: mm/swapfile.c: fix swap space leak in error path of swap_free_entries()
has been removed from the -mm tree.  Its filename was
     mm-swap-fix-swap-space-leak-in-error-path-of-swap_free_entries.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Huang Ying <ying.huang@xxxxxxxxx>
Subject: mm/swapfile.c: fix swap space leak in error path of swap_free_entries()

In swapcache_free_entries(), if swap_info_get_cont() returns NULL,
something wrong occurs for the swap entry.  But we should still continue
to free the following swap entries in the array instead of skip them to
avoid swap space leak.  This is just problem in error path, where system
may be in an inconsistent state, but it is still good to fix it.

Link: http://lkml.kernel.org/r/20170421124739.24534-1-ying.huang@xxxxxxxxx
Signed-off-by: "Huang, Ying" <ying.huang@xxxxxxxxx>
Acked-by: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Shaohua Li <shli@xxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/swapfile.c |    2 --
 1 file changed, 2 deletions(-)

diff -puN mm/swapfile.c~mm-swap-fix-swap-space-leak-in-error-path-of-swap_free_entries mm/swapfile.c
--- a/mm/swapfile.c~mm-swap-fix-swap-space-leak-in-error-path-of-swap_free_entries
+++ a/mm/swapfile.c
@@ -1079,8 +1079,6 @@ void swapcache_free_entries(swp_entry_t
 		p = swap_info_get_cont(entries[i], prev);
 		if (p)
 			swap_entry_free(p, entries[i]);
-		else
-			break;
 		prev = p;
 	}
 	if (p)
_

Patches currently in -mm which might be from ying.huang@xxxxxxxxx are

mm-swap-use-kvzalloc-to-allocate-some-swap-data-structure.patch

--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Kernel Archive]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]

  Powered by Linux