https://github.com/torvalds/linux
Revision 13f5938d8264b5501368523c4513ff26608a33e8 authored by Jérôme Glisse on 10 April 2019, 19:37:47 UTC, committed by Steve French on 24 April 2019, 17:33:59 UTC
CIFS can leak pages reference gotten through GUP (get_user_pages*() through iov_iter_get_pages()). This happen if cifs_send_async_read() or cifs_write_from_iter() calls fail from within __cifs_readv() and __cifs_writev() respectively. This patch move page unreference to cifs_aio_ctx_release() which will happens on all code paths this is all simpler to follow for correctness. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Steve French <sfrench@samba.org> Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
1 parent 652727b
Tip revision: 13f5938d8264b5501368523c4513ff26608a33e8 authored by Jérôme Glisse on 10 April 2019, 19:37:47 UTC
cifs: fix page reference leak with readv/writev
cifs: fix page reference leak with readv/writev
Tip revision: 13f5938
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| .clang-format | -rw-r--r-- | 14.6 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitattributes | -rw-r--r-- | 30 bytes |
| .gitignore | -rw-r--r-- | 1.5 KB |
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| COPYING | -rw-r--r-- | 423 bytes |
| CREDITS | -rw-r--r-- | 96.9 KB |
| Kbuild | -rw-r--r-- | 1.5 KB |
| Kconfig | -rw-r--r-- | 563 bytes |
| MAINTAINERS | -rw-r--r-- | 491.5 KB |
| Makefile | -rw-r--r-- | 58.3 KB |
| README | -rw-r--r-- | 727 bytes |
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