March 2018 - Linux-stable-mirror

Patch "kprobes/x86: Set kprobes pages read-only" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled kprobes/x86: Set kprobes pages read-only to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: kprobes-x86-set-kprobes-pages-read-only.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Masami Hiramatsu <mhiramat(a)kernel.org> Date: Wed, 29 Mar 2017 14:02:46 +0900 Subject: kprobes/x86: Set kprobes pages read-only From: Masami Hiramatsu <mhiramat(a)kernel.org> [ Upstream commit d0381c81c2f782fa2131178d11e0cfb23d50d631 ] Set the pages which is used for kprobes' singlestep buffer and optprobe's trampoline instruction buffer to readonly. This can prevent unexpected (or unintended) instruction modification. This also passes rodata_test as below. Without this patch, rodata_test shows a warning: WARNING: CPU: 0 PID: 1 at arch/x86/mm/dump_pagetables.c:235 note_page+0x7a9/0xa20 x86/mm: Found insecure W+X mapping at address ffffffffa0000000/0xffffffffa0000000 With this fix, no W+X pages are found: x86/mm: Checked W+X mappings: passed, no W+X pages found. rodata_test: all tests were successful Reported-by: Andrey Ryabinin <aryabinin(a)virtuozzo.com> Signed-off-by: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Ananth N Mavinakayanahalli <ananth(a)linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy(a)intel.com> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Brian Gerst <brgerst(a)gmail.com> Cc: David S . Miller <davem(a)davemloft.net> Cc: Denys Vlasenko <dvlasenk(a)redhat.com> Cc: H. Peter Anvin <hpa(a)zytor.com> Cc: Josh Poimboeuf <jpoimboe(a)redhat.com> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Ye Xiaolong <xiaolong.ye(a)intel.com> Link: http://lkml.kernel.org/r/149076375592.22469.14174394514338612247.stgit@devb… Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/kernel/kprobes/core.c | 4 ++++ arch/x86/kernel/kprobes/opt.c | 3 +++ 2 files changed, 7 insertions(+) --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -409,6 +409,8 @@ static int arch_copy_kprobe(struct kprob { int ret; + set_memory_rw((unsigned long)p->ainsn.insn & PAGE_MASK, 1); + /* Copy an instruction with recovering if other optprobe modifies it.*/ ret = __copy_instruction(p->ainsn.insn, p->addr); if (!ret) @@ -423,6 +425,8 @@ static int arch_copy_kprobe(struct kprob else p->ainsn.boostable = -1; + set_memory_ro((unsigned long)p->ainsn.insn & PAGE_MASK, 1); + /* Check whether the instruction modifies Interrupt Flag or not */ p->ainsn.if_modifier = is_IF_modifier(p->ainsn.insn); --- a/arch/x86/kernel/kprobes/opt.c +++ b/arch/x86/kernel/kprobes/opt.c @@ -371,6 +371,7 @@ int arch_prepare_optimized_kprobe(struct } buf = (u8 *)op->optinsn.insn; + set_memory_rw((unsigned long)buf & PAGE_MASK, 1); /* Copy instructions into the out-of-line buffer */ ret = copy_optimized_instructions(buf + TMPL_END_IDX, op->kp.addr); @@ -393,6 +394,8 @@ int arch_prepare_optimized_kprobe(struct synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size, (u8 *)op->kp.addr + op->optinsn.size); + set_memory_ro((unsigned long)buf & PAGE_MASK, 1); + flush_icache_range((unsigned long) buf, (unsigned long) buf + TMPL_END_IDX + op->optinsn.size + RELATIVEJUMP_SIZE); Patches currently in stable-queue which might be from mhiramat(a)kernel.org are queue-4.9/perf-session-don-t-rely-on-evlist-in-pipe-mode.patch queue-4.9/perf-annotate-fix-a-bug-following-symbolic-link-of-a-build-id-file.patch queue-4.9/kprobes-x86-set-kprobes-pages-read-only.patch queue-4.9/kprobes-x86-fix-kprobe-booster-not-to-boost-far-call-instructions.patch queue-4.9/perf-probe-fix-concat_probe_trace_events.patch queue-4.9/perf-inject-copy-events-when-reordering-events-in-pipe-mode.patch queue-4.9/perf-probe-return-errno-when-not-hitting-any-event.patch

6 years, 10 months

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Patch "kprobes/x86: Fix kprobe-booster not to boost far call instructions" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled kprobes/x86: Fix kprobe-booster not to boost far call instructions to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: kprobes-x86-fix-kprobe-booster-not-to-boost-far-call-instructions.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Masami Hiramatsu <mhiramat(a)kernel.org> Date: Wed, 29 Mar 2017 13:56:56 +0900 Subject: kprobes/x86: Fix kprobe-booster not to boost far call instructions From: Masami Hiramatsu <mhiramat(a)kernel.org> [ Upstream commit bd0b90676c30fe640e7ead919b3e38846ac88ab7 ] Fix the kprobe-booster not to boost far call instruction, because a call may store the address in the single-step execution buffer to the stack, which should be modified after single stepping. Currently, this instruction will be filtered as not boostable in resume_execution(), so this is not a critical issue. Signed-off-by: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Ananth N Mavinakayanahalli <ananth(a)linux.vnet.ibm.com> Cc: Andrey Ryabinin <aryabinin(a)virtuozzo.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy(a)intel.com> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Brian Gerst <brgerst(a)gmail.com> Cc: David S . Miller <davem(a)davemloft.net> Cc: Denys Vlasenko <dvlasenk(a)redhat.com> Cc: H. Peter Anvin <hpa(a)zytor.com> Cc: Josh Poimboeuf <jpoimboe(a)redhat.com> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Ye Xiaolong <xiaolong.ye(a)intel.com> Link: http://lkml.kernel.org/r/149076340615.22469.14066273186134229909.stgit@devb… Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/kernel/kprobes/core.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -199,6 +199,8 @@ retry: return (opcode != 0x62 && opcode != 0x67); case 0x70: return 0; /* can't boost conditional jump */ + case 0x90: + return opcode != 0x9a; /* can't boost call far */ case 0xc0: /* can't boost software-interruptions */ return (0xc1 < opcode && opcode < 0xcc) || opcode == 0xcf; Patches currently in stable-queue which might be from mhiramat(a)kernel.org are queue-4.9/perf-session-don-t-rely-on-evlist-in-pipe-mode.patch queue-4.9/perf-annotate-fix-a-bug-following-symbolic-link-of-a-build-id-file.patch queue-4.9/kprobes-x86-set-kprobes-pages-read-only.patch queue-4.9/kprobes-x86-fix-kprobe-booster-not-to-boost-far-call-instructions.patch queue-4.9/perf-probe-fix-concat_probe_trace_events.patch queue-4.9/perf-inject-copy-events-when-reordering-events-in-pipe-mode.patch queue-4.9/perf-probe-return-errno-when-not-hitting-any-event.patch

6 years, 10 months

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Patch "iwlwifi: mvm: rs: don't override the rate history in the search cycle" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iwlwifi: mvm: rs: don't override the rate history in the search cycle to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: iwlwifi-mvm-rs-don-t-override-the-rate-history-in-the-search-cycle.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Emmanuel Grumbach <emmanuel.grumbach(a)intel.com> Date: Thu, 19 Oct 2017 21:36:04 +0300 Subject: iwlwifi: mvm: rs: don't override the rate history in the search cycle From: Emmanuel Grumbach <emmanuel.grumbach(a)intel.com> [ Upstream commit 992172e3aec19e5b0ea5b757ba40a146b9282d1e ] When we are in a search cycle, we try different combinations of parameters. Those combinations are called 'columns'. When we switch to a new column, we first need to check if this column has a suitable rate, if not, we can't try it. This means we must not erase the statistics we gathered for the previous column until we are sure that we are indeed switching column. The code that tries to switch to a new column first sets a whole bunch of things for the new column, and only then checks that we can find suitable rates in that column. While doing that, the code mistakenly erased the rate statistics. This code was right until struct iwl_scale_tbl_info grew up for TPC. Fix this to make sure we don't erase the rate statistics until we are sure that we can indeed switch to the new column. Note that this bug is really harmless since it causes a change in the behavior only when we can't find any rate in the new column which should really not happen. In the case we do find a suitable we reset the rate statistics a few lines later anyway. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach(a)intel.com> Signed-off-by: Luca Coelho <luciano.coelho(a)intel.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/net/wireless/intel/iwlwifi/mvm/rs.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c @@ -1867,12 +1867,10 @@ static int rs_switch_to_column(struct iw struct rs_rate *rate = &search_tbl->rate; const struct rs_tx_column *column = &rs_tx_columns[col_id]; const struct rs_tx_column *curr_column = &rs_tx_columns[tbl->column]; - u32 sz = (sizeof(struct iwl_scale_tbl_info) - - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); unsigned long rate_mask = 0; u32 rate_idx = 0; - memcpy(search_tbl, tbl, sz); + memcpy(search_tbl, tbl, offsetof(struct iwl_scale_tbl_info, win)); rate->sgi = column->sgi; rate->ant = column->ant; Patches currently in stable-queue which might be from emmanuel.grumbach(a)intel.com are queue-4.9/iwlwifi-mvm-rs-don-t-override-the-rate-history-in-the-search-cycle.patch

6 years, 10 months

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Patch "iwlwifi: mvm: fix RX SKB header size and align it properly" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iwlwifi: mvm: fix RX SKB header size and align it properly to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: iwlwifi-mvm-fix-rx-skb-header-size-and-align-it-properly.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Johannes Berg <johannes.berg(a)intel.com> Date: Wed, 14 Dec 2016 13:48:04 +0100 Subject: iwlwifi: mvm: fix RX SKB header size and align it properly From: Johannes Berg <johannes.berg(a)intel.com> [ Upstream commit 5cddd05c9cbe420436799716d009bc0372ef8268 ] When receiving a frame, we currently pull in sizeof(*hdr) plus some extra (crypto/snap), which is too much, most headers aren't actually sizeof(*hdr) since that takes into account the 4-address format but doesn't take into account QoS. As a result, a typical frame will have 4 bytes of the payload in the SKB header already. Fix this by calculating the correct header length, and now that we have that, align the end of the SKB header to a multiple of 4 so that the IP header will be aligned properly when pulled in. Signed-off-by: Johannes Berg <johannes.berg(a)intel.com> Signed-off-by: Luca Coelho <luciano.coelho(a)intel.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/net/wireless/intel/iwlwifi/mvm/rx.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) --- a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c @@ -104,7 +104,20 @@ static void iwl_mvm_pass_packet_to_mac80 u8 crypt_len, struct iwl_rx_cmd_buffer *rxb) { - unsigned int hdrlen, fraglen; + unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control); + unsigned int fraglen; + + /* + * The 'hdrlen' (plus the 8 bytes for the SNAP and the crypt_len, + * but those are all multiples of 4 long) all goes away, but we + * want the *end* of it, which is going to be the start of the IP + * header, to be aligned when it gets pulled in. + * The beginning of the skb->data is aligned on at least a 4-byte + * boundary after allocation. Everything here is aligned at least + * on a 2-byte boundary so we can just take hdrlen & 3 and pad by + * the result. + */ + skb_reserve(skb, hdrlen & 3); /* If frame is small enough to fit in skb->head, pull it completely. * If not, only pull ieee80211_hdr (including crypto if present, and @@ -118,8 +131,7 @@ static void iwl_mvm_pass_packet_to_mac80 * If the latter changes (there are efforts in the standards group * to do so) we should revisit this and ieee80211_data_to_8023(). */ - hdrlen = (len <= skb_tailroom(skb)) ? len : - sizeof(*hdr) + crypt_len + 8; + hdrlen = (len <= skb_tailroom(skb)) ? len : hdrlen + crypt_len + 8; memcpy(skb_put(skb, hdrlen), hdr, hdrlen); fraglen = len - hdrlen; Patches currently in stable-queue which might be from johannes.berg(a)intel.com are queue-4.9/mac80211-remove-bug-when-interface-type-is-invalid.patch queue-4.9/mac80211_hwsim-enforce-ps_manual_poll-to-be-set-after-ps_enabled.patch queue-4.9/mac80211_hwsim-use-per-interface-power-level.patch queue-4.9/iwlwifi-mvm-fix-rx-skb-header-size-and-align-it-properly.patch

6 years, 10 months

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Patch "ipvlan: add L2 check for packets arriving via virtual devices" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled ipvlan: add L2 check for packets arriving via virtual devices to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: ipvlan-add-l2-check-for-packets-arriving-via-virtual-devices.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Mahesh Bandewar <maheshb(a)google.com> Date: Thu, 7 Dec 2017 15:15:43 -0800 Subject: ipvlan: add L2 check for packets arriving via virtual devices From: Mahesh Bandewar <maheshb(a)google.com> [ Upstream commit 92ff42645028fa6f9b8aa767718457b9264316b4 ] Packets that don't have dest mac as the mac of the master device should not be entertained by the IPvlan rx-handler. This is mostly true as the packet path mostly takes care of that, except when the master device is a virtual device. As demonstrated in the following case - ip netns add ns1 ip link add ve1 type veth peer name ve2 ip link add link ve2 name iv1 type ipvlan mode l2 ip link set dev iv1 netns ns1 ip link set ve1 up ip link set ve2 up ip -n ns1 link set iv1 up ip addr add 192.168.10.1/24 dev ve1 ip -n ns1 addr 192.168.10.2/24 dev iv1 ping -c2 192.168.10.2 <Works!> ip neigh show dev ve1 ip neigh show 192.168.10.2 lladdr <random> dev ve1 ping -c2 192.168.10.2 <Still works! Wrong!!> This patch adds that missing check in the IPvlan rx-handler. Reported-by: Amit Sikka <amit.sikka(a)ericsson.com> Signed-off-by: Mahesh Bandewar <maheshb(a)google.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/net/ipvlan/ipvlan_core.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/net/ipvlan/ipvlan_core.c +++ b/drivers/net/ipvlan/ipvlan_core.c @@ -299,6 +299,10 @@ static int ipvlan_rcv_frame(struct ipvl_ if (dev_forward_skb(ipvlan->dev, skb) == NET_RX_SUCCESS) success = true; } else { + if (!ether_addr_equal_64bits(eth_hdr(skb)->h_dest, + ipvlan->phy_dev->dev_addr)) + skb->pkt_type = PACKET_OTHERHOST; + ret = RX_HANDLER_ANOTHER; success = true; } Patches currently in stable-queue which might be from maheshb(a)google.com are queue-4.9/bonding-make-speed-duplex-setting-consistent-with-link-state.patch queue-4.9/ipvlan-add-l2-check-for-packets-arriving-via-virtual-devices.patch

6 years, 10 months

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Patch "iommu/iova: Fix underflow bug in __alloc_and_insert_iova_range" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iommu/iova: Fix underflow bug in __alloc_and_insert_iova_range to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: iommu-iova-fix-underflow-bug-in-__alloc_and_insert_iova_range.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Nate Watterson <nwatters(a)codeaurora.org> Date: Fri, 7 Apr 2017 01:36:20 -0400 Subject: iommu/iova: Fix underflow bug in __alloc_and_insert_iova_range From: Nate Watterson <nwatters(a)codeaurora.org> [ Upstream commit 5016bdb796b3726eec043ca0ce3be981f712c756 ] Normally, calling alloc_iova() using an iova_domain with insufficient pfns remaining between start_pfn and dma_limit will fail and return a NULL pointer. Unexpectedly, if such a "full" iova_domain contains an iova with pfn_lo == 0, the alloc_iova() call will instead succeed and return an iova containing invalid pfns. This is caused by an underflow bug in __alloc_and_insert_iova_range() that occurs after walking the "full" iova tree when the search ends at the iova with pfn_lo == 0 and limit_pfn is then adjusted to be just below that (-1). This (now huge) limit_pfn gives the impression that a vast amount of space is available between it and start_pfn and thus a new iova is allocated with the invalid pfn_hi value, 0xFFF.... . To rememdy this, a check is introduced to ensure that adjustments to limit_pfn will not underflow. This issue has been observed in the wild, and is easily reproduced with the following sample code. struct iova_domain *iovad = kzalloc(sizeof(*iovad), GFP_KERNEL); struct iova *rsvd_iova, *good_iova, *bad_iova; unsigned long limit_pfn = 3; unsigned long start_pfn = 1; unsigned long va_size = 2; init_iova_domain(iovad, SZ_4K, start_pfn, limit_pfn); rsvd_iova = reserve_iova(iovad, 0, 0); good_iova = alloc_iova(iovad, va_size, limit_pfn, true); bad_iova = alloc_iova(iovad, va_size, limit_pfn, true); Prior to the patch, this yielded: *rsvd_iova == {0, 0} /* Expected */ *good_iova == {2, 3} /* Expected */ *bad_iova == {-2, -1} /* Oh no... */ After the patch, bad_iova is NULL as expected since inadequate space remains between limit_pfn and start_pfn after allocating good_iova. Signed-off-by: Nate Watterson <nwatters(a)codeaurora.org> Signed-off-by: Joerg Roedel <jroedel(a)suse.de> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/iommu/iova.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iommu/iova.c +++ b/drivers/iommu/iova.c @@ -138,7 +138,7 @@ static int __alloc_and_insert_iova_range break; /* found a free slot */ } adjust_limit_pfn: - limit_pfn = curr_iova->pfn_lo - 1; + limit_pfn = curr_iova->pfn_lo ? (curr_iova->pfn_lo - 1) : 0; move_left: prev = curr; curr = rb_prev(curr); Patches currently in stable-queue which might be from nwatters(a)codeaurora.org are queue-4.9/iommu-iova-fix-underflow-bug-in-__alloc_and_insert_iova_range.patch

6 years, 10 months

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Patch "Input: tsc2007 - check for presence and power down tsc2007 during probe" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled Input: tsc2007 - check for presence and power down tsc2007 during probe to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: input-tsc2007-check-for-presence-and-power-down-tsc2007-during-probe.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: "H. Nikolaus Schaller" <hns(a)goldelico.com> Date: Fri, 17 Feb 2017 12:51:19 -0800 Subject: Input: tsc2007 - check for presence and power down tsc2007 during probe From: "H. Nikolaus Schaller" <hns(a)goldelico.com> [ Upstream commit 934df23171e7c5b71d937104d4957891c39748ff ] 1. check if chip is really present and don't succeed if it isn't. 2. if it succeeds, power down the chip until accessed Signed-off-by: H. Nikolaus Schaller <hns(a)goldelico.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov(a)gmail.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/input/touchscreen/tsc2007.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -455,6 +455,14 @@ static int tsc2007_probe(struct i2c_clie tsc2007_stop(ts); + /* power down the chip (TSC2007_SETUP does not ACK on I2C) */ + err = tsc2007_xfer(ts, PWRDOWN); + if (err < 0) { + dev_err(&client->dev, + "Failed to setup chip: %d\n", err); + return err; /* usually, chip does not respond */ + } + err = input_register_device(input_dev); if (err) { dev_err(&client->dev, Patches currently in stable-queue which might be from hns(a)goldelico.com are queue-4.9/input-tsc2007-check-for-presence-and-power-down-tsc2007-during-probe.patch

6 years, 10 months

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Patch "Input: qt1070 - add OF device ID table" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled Input: qt1070 - add OF device ID table to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: input-qt1070-add-of-device-id-table.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Javier Martinez Canillas <javier(a)osg.samsung.com> Date: Thu, 23 Mar 2017 13:33:12 -0700 Subject: Input: qt1070 - add OF device ID table From: Javier Martinez Canillas <javier(a)osg.samsung.com> [ Upstream commit cf5cd9d4480a87da78768718cac194a71079b5cb ] The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. The compatible strings don't have a vendor prefix because that's how it's used currently, and changing this will be a Device Tree ABI break. Signed-off-by: Javier Martinez Canillas <javier(a)osg.samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov(a)gmail.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/input/keyboard/qt1070.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/input/keyboard/qt1070.c +++ b/drivers/input/keyboard/qt1070.c @@ -274,9 +274,18 @@ static const struct i2c_device_id qt1070 }; MODULE_DEVICE_TABLE(i2c, qt1070_id); +#ifdef CONFIG_OF +static const struct of_device_id qt1070_of_match[] = { + { .compatible = "qt1070", }, + { }, +}; +MODULE_DEVICE_TABLE(of, qt1070_of_match); +#endif + static struct i2c_driver qt1070_driver = { .driver = { .name = "qt1070", + .of_match_table = of_match_ptr(qt1070_of_match), .pm = &qt1070_pm_ops, }, .id_table = qt1070_id, Patches currently in stable-queue which might be from javier(a)osg.samsung.com are queue-4.9/asoc-rt5677-add-of-device-id-table.patch queue-4.9/regulator-core-limit-propagation-of-parent-voltage-count-and-list.patch queue-4.9/input-qt1070-add-of-device-id-table.patch

6 years, 10 months

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Patch "ima: relax requiring a file signature for new files with zero length" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled ima: relax requiring a file signature for new files with zero length to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: ima-relax-requiring-a-file-signature-for-new-files-with-zero-length.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Mimi Zohar <zohar(a)linux.vnet.ibm.com> Date: Wed, 8 Nov 2017 07:38:28 -0500 Subject: ima: relax requiring a file signature for new files with zero length From: Mimi Zohar <zohar(a)linux.vnet.ibm.com> [ Upstream commit b7e27bc1d42e8e0cc58b602b529c25cd0071b336 ] Custom policies can require file signatures based on LSM labels. These files are normally created and only afterwards labeled, requiring them to be signed. Instead of requiring file signatures based on LSM labels, entire filesystems could require file signatures. In this case, we need the ability of writing new files without requiring file signatures. The definition of a "new" file was originally defined as any file with a length of zero. Subsequent patches redefined a "new" file to be based on the FILE_CREATE open flag. By combining the open flag with a file size of zero, this patch relaxes the file signature requirement. Fixes: 1ac202e978e1 ima: accept previously set IMA_NEW_FILE Signed-off-by: Mimi Zohar <zohar(a)linux.vnet.ibm.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- security/integrity/ima/ima_appraise.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/security/integrity/ima/ima_appraise.c +++ b/security/integrity/ima/ima_appraise.c @@ -207,7 +207,8 @@ int ima_appraise_measurement(enum ima_ho if (opened & FILE_CREATED) iint->flags |= IMA_NEW_FILE; if ((iint->flags & IMA_NEW_FILE) && - !(iint->flags & IMA_DIGSIG_REQUIRED)) + (!(iint->flags & IMA_DIGSIG_REQUIRED) || + (inode->i_size == 0))) status = INTEGRITY_PASS; goto out; } Patches currently in stable-queue which might be from zohar(a)linux.vnet.ibm.com are queue-4.9/ima-relax-requiring-a-file-signature-for-new-files-with-zero-length.patch

6 years, 10 months

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Patch "IB/hfi1: Check for QSFP presence before attempting reads" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled IB/hfi1: Check for QSFP presence before attempting reads to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: ib-hfi1-check-for-qsfp-presence-before-attempting-reads.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Sun Mar 18 16:55:33 CET 2018 From: Easwar Hariharan <easwar.hariharan(a)intel.com> Date: Mon, 20 Mar 2017 17:25:42 -0700 Subject: IB/hfi1: Check for QSFP presence before attempting reads From: Easwar Hariharan <easwar.hariharan(a)intel.com> [ Upstream commit fb897ad315643e5dc1092a115b3cec914b66df9d ] Attempting to read the status of a QSFP cable creates noise in the logs and misses out on setting an appropriate Offline/Disabled Reason if the cable is not plugged in. Check for this prior to attempting the read and attendant retries. Fixes: 673b975f1fba ("IB/hfi1: Add QSFP sanity pre-check") Reviewed-by: Dennis Dalessandro <dennis.dalessandro(a)intel.com> Signed-off-by: Easwar Hariharan <easwar.hariharan(a)intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro(a)intel.com> Signed-off-by: Doug Ledford <dledford(a)redhat.com> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/infiniband/hw/hfi1/chip.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -9489,8 +9489,11 @@ static int test_qsfp_read(struct hfi1_pp int ret; u8 status; - /* report success if not a QSFP */ - if (ppd->port_type != PORT_TYPE_QSFP) + /* + * Report success if not a QSFP or, if it is a QSFP, but the cable is + * not present + */ + if (ppd->port_type != PORT_TYPE_QSFP || !qsfp_mod_present(ppd)) return 0; /* read byte 2, the status byte */ Patches currently in stable-queue which might be from easwar.hariharan(a)intel.com are queue-4.9/ib-hfi1-check-for-qsfp-presence-before-attempting-reads.patch

6 years, 10 months

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Linux-stable-mirror March 2018