Messages in this thread | | | From | Lukas Bulwahn <> | Date | Fri, 7 Jan 2022 07:48:46 +0100 | Subject | Observation of a memory leak with commit 314001f0bf92 ("af_unix: Add OOB support") |
| |
Dear Rao and David,
In our syzkaller instance running on linux-next, https://elisa-builder-00.iol.unh.edu/syzkaller-next/, we have been observing a memory leak in prepare_creds, https://elisa-builder-00.iol.unh.edu/syzkaller-next/report?id=1dcac8539d69ad9eb94ab2c8c0d99c11a0b516a3, for quite some time.
It is reproducible on v5.15-rc1, v5.15, v5.16-rc8 and next-20220104. So, it is in mainline, was released and has not been fixed in linux-next yet.
As syzkaller also provides a reproducer, we bisected this memory leak to be introduced with commit 314001f0bf92 ("af_unix: Add OOB support").
We also tested that reverting this commit on torvalds' current tree made the memory leak with the reproducer go away.
Could you please have a look how your commit introduces this memory leak? We will gladly support testing your fix in case help is needed.
Best regards,
Lukas
| |