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| author |   Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> | 2019-12-16 22:01:16 -0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-12-17 21:58:37 -0800 |
| commit | 951c6db954a1adefab492f6da805decacabbd1a7 (patch) | |
| tree | 4f10faba719c2bcb1c89d8a5cde985090036fb10 /include/net/sock.h | |
| parent | Merge tag 'wireless-drivers-2019-12-17' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers (diff) | |
| download | linux-dev-951c6db954a1adefab492f6da805decacabbd1a7.tar.xz linux-dev-951c6db954a1adefab492f6da805decacabbd1a7.zip | |
sctp: fix memleak on err handling of stream initialization
syzbot reported a memory leak when an allocation fails within
genradix_prealloc() for output streams. That's because
genradix_prealloc() leaves initialized members initialized when the
issue happens and SCTP stack will abort the current initialization but
without cleaning up such members.
The fix here is to always call genradix_free() when genradix_prealloc()
fails, for output and also input streams, as it suffers from the same
issue.
Reported-by: syzbot+772d9e36c490b18d51d1@syzkaller.appspotmail.com
Fixes: 2075e50caf5e ("sctp: convert to genradix")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Tested-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
0 files changed, 0 insertions, 0 deletions