From: <gregkh@linuxfoundation.org>
To: davem@davemloft.net, gregkh@linuxfoundation.org,
mikpelinux@gmail.com, sam@ravnborg.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "sparc64: Fix exception handling in UltraSPARC-III memcpy." has been added to the 4.12-stable tree
Date: Tue, 08 Aug 2017 16:29:25 -0700 [thread overview]
Message-ID: <1502234965133192@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
sparc64: Fix exception handling in UltraSPARC-III memcpy.
to the 4.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc64-fix-exception-handling-in-ultrasparc-iii-memcpy.patch
and it can be found in the queue-4.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Tue Aug 8 16:28:31 PDT 2017
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 4 Aug 2017 09:47:52 -0700
Subject: sparc64: Fix exception handling in UltraSPARC-III memcpy.
From: "David S. Miller" <davem@davemloft.net>
[ Upstream commit 0ede1c401332173ab0693121dc6cde04a4dbf131 ]
Mikael Pettersson reported that some test programs in the strace-4.18
testsuite cause an OOPS.
After some debugging it turns out that garbage values are returned
when an exception occurs, causing the fixup memset() to be run with
bogus arguments.
The problem is that two of the exception handler stubs write the
successfully copied length into the wrong register.
Fixes: ee841d0aff64 ("sparc64: Convert U3copy_{from,to}_user to accurate exception reporting.")
Reported-by: Mikael Pettersson <mikpelinux@gmail.com>
Tested-by: Mikael Pettersson <mikpelinux@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/sparc/lib/U3memcpy.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/sparc/lib/U3memcpy.S
+++ b/arch/sparc/lib/U3memcpy.S
@@ -145,13 +145,13 @@ ENDPROC(U3_retl_o2_plus_GS_plus_0x08)
ENTRY(U3_retl_o2_and_7_plus_GS)
and %o2, 7, %o2
retl
- add %o2, GLOBAL_SPARE, %o2
+ add %o2, GLOBAL_SPARE, %o0
ENDPROC(U3_retl_o2_and_7_plus_GS)
ENTRY(U3_retl_o2_and_7_plus_GS_plus_8)
add GLOBAL_SPARE, 8, GLOBAL_SPARE
and %o2, 7, %o2
retl
- add %o2, GLOBAL_SPARE, %o2
+ add %o2, GLOBAL_SPARE, %o0
ENDPROC(U3_retl_o2_and_7_plus_GS_plus_8)
#endif
Patches currently in stable-queue which might be from davem@davemloft.net are
queue-4.12/ipv4-ipv6-initialize-treq-txhash-in-cookie_v_check.patch
queue-4.12/openvswitch-fix-potential-out-of-bound-access-in-parse_ct.patch
queue-4.12/ipv6-don-t-increase-ipstats_mib_fragfails-twice-in-ip6_fragment.patch
queue-4.12/net-bonding-fix-transmit-load-balancing-in-balance-alb-mode.patch
queue-4.12/sparc64-register-hugepages-during-arch-init.patch
queue-4.12/sctp-don-t-dereference-ptr-before-leaving-_sctp_walk_-params-errors.patch
queue-4.12/net-ethernet-nb8800-handle-all-4-rgmii-modes-identically.patch
queue-4.12/udp6-fix-socket-leak-on-early-demux.patch
queue-4.12/sctp-fix-the-check-for-_sctp_walk_params-and-_sctp_walk_errors.patch
queue-4.12/packet-fix-use-after-free-in-prb_retire_rx_blk_timer_expired.patch
queue-4.12/rtnetlink-allocate-more-memory-for-dev_set_mac_address.patch
queue-4.12/tcp_bbr-remove-sk_pacing_rate-0-transient-during-init.patch
queue-4.12/tcp_bbr-introduce-bbr_bw_to_pacing_rate-helper.patch
queue-4.12/bonding-commit-link-status-change-after-propose.patch
queue-4.12/virtio_net-fix-truesize-for-mergeable-buffers.patch
queue-4.12/ipv4-fib-fix-null-pointer-deref-during-fib_sync_down_dev.patch
queue-4.12/sparc64-measure-receiver-forward-progress-to-avoid-send-mondo-timeout.patch
queue-4.12/sparc64-fix-exception-handling-in-ultrasparc-iii-memcpy.patch
queue-4.12/dccp-fix-a-memleak-that-dccp_ipv6-doesn-t-put-reqsk-properly.patch
queue-4.12/tcp_bbr-introduce-bbr_init_pacing_rate_from_rtt-helper.patch
queue-4.12/sparc64-prevent-perf-from-running-during-super-critical-sections.patch
queue-4.12/revert-rtnetlink-do-not-generate-notifications-for-changeaddr-event.patch
queue-4.12/net-dsa-b53-add-missing-arl-entries-for-bcm53125.patch
queue-4.12/dccp-fix-a-memleak-that-dccp_ipv4-doesn-t-put-reqsk-properly.patch
queue-4.12/wireless-wext-terminate-ifr-name-coming-from-userspace.patch
queue-4.12/net-dsa-mv88e6xxx-enable-cmode-config-support-for-6390x.patch
queue-4.12/mcs7780-fix-initialization-when-config_vmap_stack-is-enabled.patch
queue-4.12/net-zero-terminate-ifr_name-in-dev_ifname.patch
queue-4.12/tcp_bbr-init-pacing-rate-on-first-rtt-sample.patch
queue-4.12/net-phy-correctly-process-phy_halted-in-phy_stop_machine.patch
queue-4.12/ipv6-avoid-overflow-of-offset-in-ip6_find_1stfragopt.patch
queue-4.12/dccp-fix-a-memleak-for-dccp_feat_init-err-process.patch
queue-4.12/ipv4-initialize-fib_trie-prior-to-register_netdev_notifier-call.patch
queue-4.12/sctp-fix-an-array-overflow-when-all-ext-chunks-are-set.patch
queue-4.12/tcp_bbr-cut-pacing-rate-only-if-filled-pipe.patch
reply other threads:[~2017-08-08 23:29 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1502234965133192@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=davem@davemloft.net \
--cc=mikpelinux@gmail.com \
--cc=sam@ravnborg.org \
--cc=stable-commits@vger.kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).