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Groups > linux.kernel > #1484346
| From | Theodore Ts'o <tytso@mit.edu> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 6/6 linux-next] ext4: fix memory leak in ext4_insert_range() |
| Date | 2016-09-15 17:50 +0200 |
| Message-ID | <shH5g-o6-37@gated-at.bofh.it> (permalink) |
| References | <s9MEN-7el-13@gated-at.bofh.it> <s9MEO-7el-31@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Aug 24, 2016 at 10:03:20PM +0200, Fabian Frederick wrote: > 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 > > Signed-off-by: Fabian Frederick <fabf@skynet.be> Applied, thanks. - Ted
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Re: [PATCH 6/6 linux-next] ext4: fix memory leak in ext4_insert_range() Theodore Ts'o <tytso@mit.edu> - 2016-09-15 17:50 +0200
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