diff options
Diffstat (limited to 'SOURCES/patch-5.16-redhat.patch')
| -rw-r--r-- | SOURCES/patch-5.16-redhat.patch | 114 |
1 files changed, 82 insertions, 32 deletions
diff --git a/SOURCES/patch-5.16-redhat.patch b/SOURCES/patch-5.16-redhat.patch index 87ffea7..36d48d6 100644 --- a/SOURCES/patch-5.16-redhat.patch +++ b/SOURCES/patch-5.16-redhat.patch @@ -1,3 +1,4 @@ + Documentation/core-api/dma-attributes.rst | 8 ++ Makefile | 4 + arch/arm/Kconfig | 4 +- arch/arm64/Kconfig | 3 +- @@ -25,7 +26,6 @@ drivers/net/wireless/ath/ath11k/core.h | 1 + drivers/net/wireless/ath/ath11k/mhi.c | 1 + drivers/net/wireless/ath/ath11k/pci.c | 16 ++- - drivers/nfc/st21nfca/se.c | 10 ++ drivers/nvme/host/core.c | 22 +++- drivers/nvme/host/multipath.c | 19 ++-- drivers/nvme/host/nvme.h | 4 + @@ -36,6 +36,7 @@ fs/nfs/nfs4_fs.h | 9 +- fs/nfs/nfs4proc.c | 76 ++----------- fs/nfs/nfs4state.c | 3 +- + include/linux/dma-mapping.h | 8 ++ include/linux/efi.h | 22 ++-- include/linux/lsm_hook_defs.h | 2 + include/linux/lsm_hooks.h | 6 + @@ -44,6 +45,7 @@ include/linux/rmi.h | 1 + include/linux/security.h | 5 + include/net/netfilter/nf_conntrack.h | 1 + + kernel/dma/swiotlb.c | 23 ++-- kernel/module_signing.c | 9 +- net/netfilter/nf_conntrack_core.c | 3 + net/netfilter/nf_nat_core.c | 43 ++++++- @@ -53,10 +55,26 @@ security/lockdown/lockdown.c | 1 + security/security.c | 6 + tools/testing/selftests/netfilter/nft_nat.sh | 5 +- - 55 files changed, 821 insertions(+), 284 deletions(-) - + 57 files changed, 835 insertions(+), 299 deletions(-) + +diff --git a/Documentation/core-api/dma-attributes.rst b/Documentation/core-api/dma-attributes.rst +index 1887d92e8e92..17706dc91ec9 100644 +--- a/Documentation/core-api/dma-attributes.rst ++++ b/Documentation/core-api/dma-attributes.rst +@@ -130,3 +130,11 @@ accesses to DMA buffers in both privileged "supervisor" and unprivileged + subsystem that the buffer is fully accessible at the elevated privilege + level (and ideally inaccessible or at least read-only at the + lesser-privileged levels). ++ ++DMA_ATTR_OVERWRITE ++------------------ ++ ++This is a hint to the DMA-mapping subsystem that the device is expected to ++overwrite the entire mapped size, thus the caller does not require any of the ++previous buffer contents to be preserved. This allows bounce-buffering ++implementations to optimise DMA_FROM_DEVICE transfers. diff --git a/Makefile b/Makefile -index 0ca39c16b3bf..5e51ad0402d1 100644 +index f47cecba0618..cbac049b97a3 100644 --- a/Makefile +++ b/Makefile @@ -18,6 +18,10 @@ $(if $(filter __%, $(MAKECMDGOALS)), \ @@ -1373,34 +1391,6 @@ index 4c348bacf2cb..9fe496d35b38 100644 dev_err(&pdev->dev, "Unsupported WCN6855 SOC hardware version: %d %d\n", soc_hw_version_major, soc_hw_version_minor); ret = -EOPNOTSUPP; -diff --git a/drivers/nfc/st21nfca/se.c b/drivers/nfc/st21nfca/se.c -index a43fc4117fa5..c922f10d0d7b 100644 ---- a/drivers/nfc/st21nfca/se.c -+++ b/drivers/nfc/st21nfca/se.c -@@ -316,6 +316,11 @@ int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host, - return -ENOMEM; - - transaction->aid_len = skb->data[1]; -+ -+ /* Checking if the length of the AID is valid */ -+ if (transaction->aid_len > sizeof(transaction->aid)) -+ return -EINVAL; -+ - memcpy(transaction->aid, &skb->data[2], - transaction->aid_len); - -@@ -325,6 +330,11 @@ int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host, - return -EPROTO; - - transaction->params_len = skb->data[transaction->aid_len + 3]; -+ -+ /* Total size is allocated (skb->len - 2) minus fixed array members */ -+ if (transaction->params_len > ((skb->len - 2) - sizeof(struct nfc_evt_transaction))) -+ return -EINVAL; -+ - memcpy(transaction->params, skb->data + - transaction->aid_len + 4, transaction->params_len); - diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 5785f6abf194..7fc5f15a4b78 100644 --- a/drivers/nvme/host/core.c @@ -1824,6 +1814,25 @@ index 499bef9fe118..f3265575c28d 100644 if (result) { dprintk("<-- %s: failed to retrieve fs_locations: %d\n", __func__, result); +diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h +index dca2b1355bb1..6150d11a607e 100644 +--- a/include/linux/dma-mapping.h ++++ b/include/linux/dma-mapping.h +@@ -61,6 +61,14 @@ + */ + #define DMA_ATTR_PRIVILEGED (1UL << 9) + ++/* ++ * This is a hint to the DMA-mapping subsystem that the device is expected ++ * to overwrite the entire mapped size, thus the caller does not require any ++ * of the previous buffer contents to be preserved. This allows ++ * bounce-buffering implementations to optimise DMA_FROM_DEVICE transfers. ++ */ ++#define DMA_ATTR_OVERWRITE (1UL << 10) ++ + /* + * A dma_addr_t can hold any valid DMA or bus address for the platform. It can + * be given to a device to use as a DMA source or target. It is specific to a diff --git a/include/linux/efi.h b/include/linux/efi.h index ef8dbc0a1522..836a5dfc6156 100644 --- a/include/linux/efi.h @@ -2006,6 +2015,47 @@ index d24b0a34c8f0..871489df63c6 100644 possible_net_t ct_net; #if IS_ENABLED(CONFIG_NF_NAT) +diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c +index e7f138c7636c..d958b1201092 100644 +--- a/kernel/dma/swiotlb.c ++++ b/kernel/dma/swiotlb.c +@@ -581,14 +581,10 @@ phys_addr_t swiotlb_tbl_map_single(struct device *dev, phys_addr_t orig_addr, + for (i = 0; i < nr_slots(alloc_size + offset); i++) + mem->slots[index + i].orig_addr = slot_addr(orig_addr, i); + tlb_addr = slot_addr(mem->start, index) + offset; +- /* +- * When dir == DMA_FROM_DEVICE we could omit the copy from the orig +- * to the tlb buffer, if we knew for sure the device will +- * overwirte the entire current content. But we don't. Thus +- * unconditional bounce may prevent leaking swiotlb content (i.e. +- * kernel memory) to user-space. +- */ +- swiotlb_bounce(dev, tlb_addr, mapping_size, DMA_TO_DEVICE); ++ if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC) && ++ (!(attrs & DMA_ATTR_OVERWRITE) || dir == DMA_TO_DEVICE || ++ dir == DMA_BIDIRECTIONAL)) ++ swiotlb_bounce(dev, tlb_addr, mapping_size, DMA_TO_DEVICE); + return tlb_addr; + } + +@@ -655,13 +651,10 @@ void swiotlb_tbl_unmap_single(struct device *dev, phys_addr_t tlb_addr, + void swiotlb_sync_single_for_device(struct device *dev, phys_addr_t tlb_addr, + size_t size, enum dma_data_direction dir) + { +- /* +- * Unconditional bounce is necessary to avoid corruption on +- * sync_*_for_cpu or dma_ummap_* when the device didn't overwrite +- * the whole lengt of the bounce buffer. +- */ +- swiotlb_bounce(dev, tlb_addr, size, DMA_TO_DEVICE); +- BUG_ON(!valid_dma_direction(dir)); ++ if (dir == DMA_TO_DEVICE || dir == DMA_BIDIRECTIONAL) ++ swiotlb_bounce(dev, tlb_addr, size, DMA_TO_DEVICE); ++ else ++ BUG_ON(dir != DMA_FROM_DEVICE); + } + + void swiotlb_sync_single_for_cpu(struct device *dev, phys_addr_t tlb_addr, diff --git a/kernel/module_signing.c b/kernel/module_signing.c index 8723ae70ea1f..fb2d773498c2 100644 --- a/kernel/module_signing.c |