diff options
| author | Fabian Frederick <fabf@skynet.be> | 2016-09-15 11:39:52 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2016-09-15 11:39:52 -0400 |
| commit | edf15aa180d7b98fe16bd3eda42f9dd0e60dee20 (patch) | |
| tree | 79c4c69df2a2a9f94edd375b870c76839ac33ab5 /lib/raid6 | |
| parent | 4e800c0359d9a53e6bf0ab216954971b2515247f (diff) | |
ext4: fix memory leak in ext4_insert_range()
Running xfstests generic/013 with kmemleak gives the following:
unreferenced object 0xffff8801d3d27de0 (size 96):
comm "fsstress", pid 4941, jiffies 4294860168 (age 53.485s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff818eaaf3>] kmemleak_alloc+0x23/0x40
[<ffffffff81179805>] __kmalloc+0xf5/0x1d0
[<ffffffff8122ef5c>] ext4_find_extent+0x1ec/0x2f0
[<ffffffff8123530c>] ext4_insert_range+0x34c/0x4a0
[<ffffffff81235942>] ext4_fallocate+0x4e2/0x8b0
[<ffffffff81181334>] vfs_fallocate+0x134/0x210
[<ffffffff8118203f>] SyS_fallocate+0x3f/0x60
[<ffffffff818efa9b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[<ffffffffffffffff>] 0xffffffffffffffff
Problem seems mitigated by dropping refs and freeing path
when there's no path[depth].p_ext
Cc: stable@vger.kernel.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'lib/raid6')
0 files changed, 0 insertions, 0 deletions