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[PATCH OLK-5.10] Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ
by Liu Kai 20 May '26

20 May '26

From: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> stable inclusion from stable-v5.10.252 commit 335071c0c3637064ec250481f589075db44fe4e6 category: bugfix bugzilla: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 138d7eca445ef37a0333425d269ee59900ca1104 ] This adds a check for encryption key size upon receiving L2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which expects L2CAP_CR_LE_BAD_KEY_SIZE. Link: https://lore.kernel.org/linux-bluetooth/5782243.rdbgypaU67@n9w6sw14/ Fixes: 27e2d4c8d28b ("Bluetooth: Add basic LE L2CAP connect request receiving support") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Tested-by: Christian Eggers <ceggers(a)arri.de> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: net/bluetooth/l2cap_core.c [delete parameter "pchan" of l2cap_check_enc_key_size()] Signed-off-by: Liu Kai <liukai284(a)huawei.com> --- net/bluetooth/l2cap_core.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index d97f29f7218a..cbe8dcc2b5f0 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -5860,6 +5860,13 @@ static int l2cap_le_connect_req(struct l2cap_conn *conn, goto response_unlock; } + /* Check if Key Size is sufficient for the security level */ + if (!l2cap_check_enc_key_size(conn->hcon)) { + result = L2CAP_CR_LE_BAD_KEY_SIZE; + chan = NULL; + goto response_unlock; + } + /* Check for valid dynamic CID range */ if (scid < L2CAP_CID_DYN_START || scid > L2CAP_CID_LE_DYN_END) { result = L2CAP_CR_LE_INVALID_SCID; -- 2.34.1

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[PATCH OLK-5.10 0/3] CVE-2026-43134
by Liu Kai 20 May '26

20 May '26

CVE-2026-43134 Archie Pusaka (1): Bluetooth: Enforce key size of 16 bytes on FIPS level Frédéric Danis (1): Bluetooth: l2cap: Check encryption key size on incoming connection Luiz Augusto von Dentz (1): Bluetooth: L2CAP: Fix not checking l2cap_chan security level net/bluetooth/l2cap_core.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) -- 2.34.1

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openEuler Kernel SIG双周例会
by openEuler conference 20 May '26

20 May '26

您好！ Kernel 邀请您参加 2026-05-22 14:00 召开的WeLink会议(自动录制) 会议主题：openEuler Kernel SIG双周例会会议发起人： LiaoTao_Wave 会议内容： 1. 进展update 2. 议题征集中（新增议题可回复本邮件，或直接填报至会议纪要看板）会议链接：https://meeting.huaweicloud.com:36443/#/j/985166233 会议纪要&签到链接：https://etherpad.openeuler.org/p/Kernel-meetings 更多资讯尽在：https://www.openeuler.org/zh/ Hello! Kernel invites you to attend the WeLink conference(auto recording) will be held at 2026-05-22 14:00 The subject of the conference is openEuler Kernel SIG双周例会 The sponsor of the conference is LiaoTao_Wave Summary: 1. 进展update 2. 议题征集中（新增议题可回复本邮件，或直接填报至会议纪要看板） You can join the meeting at https://meeting.huaweicloud.com:36443/#/j/985166233 Add topics at https://etherpad.openeuler.org/p/Kernel-meetings More information: https://www.openeuler.org/en/

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[PATCH OLK-6.6] config: x86: Fix CI "checkdefconfig" warning by updating defconfig
by Tengda Wu 19 May '26

19 May '26

hulk inclusion category: feature bugzilla: https://atomgit.com/openeuler/kernel/issues/9203 CVE: NA --------------------------- When building the x86_64 kernel, the CI robot complains: [WARNING] x86_64 checkdefconfig fail - CONFIG_DEBUG_INFO_BTF_MODULES=y - CONFIG_MODULE_ALLOW_BTF_MISMATCH=n The configs listed above are introduced but the openeuler_defconfig for x86_64 is not updated, you can configure and run 'make update_oedefconfig' to update it. After investigation, it was found that one of these two configs has existed since the 6.6 baseline version, so just run 'make update_oedefconfig' to stop the complaint. Signed-off-by: Tengda Wu <wutengda2(a)huawei.com> --- arch/x86/configs/openeuler_defconfig | 35 ++++++++++++++-------------- 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index 73302f391cd7..08126a9363ef 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -7,7 +7,7 @@ CONFIG_TOOLS_SUPPORT_RELR=y CONFIG_IRQ_WORK=y CONFIG_BUILDTIME_TABLE_SORT=y CONFIG_THREAD_INFO_IN_TASK=y -CONFIG_DRM_PHYTIUM=y + # # General setup # @@ -198,6 +198,7 @@ CONFIG_BLK_CGROUP=y CONFIG_CGROUP_WRITEBACK=y CONFIG_CGROUP_V1_WRITEBACK=y CONFIG_CGROUP_SCHED=y +CONFIG_QOS_LEVEL=y CONFIG_QOS_SCHED=y CONFIG_QOS_SCHED_SMT_EXPELLER=y CONFIG_QOS_SCHED_PRIO_LB=y @@ -1054,6 +1055,7 @@ CONFIG_MQ_IOSCHED_KYBER=y CONFIG_IOSCHED_BFQ=y CONFIG_BFQ_GROUP_IOSCHED=y # CONFIG_BFQ_CGROUP_DEBUG is not set +CONFIG_BPF_RVI_BLK_BFQ=y # end of IO Schedulers CONFIG_PREEMPT_NOTIFIERS=y @@ -1179,6 +1181,7 @@ CONFIG_READ_ONLY_THP_FOR_FS=y CONFIG_PGTABLE_HAS_HUGE_LEAVES=y CONFIG_ARCH_SUPPORTS_HUGE_PFNMAP=y CONFIG_ARCH_SUPPORTS_PMD_PFNMAP=y +CONFIG_ARCH_SUPPORTS_PUD_PFNMAP=y CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y CONFIG_USE_PERCPU_NUMA_NODE_ID=y @@ -1224,7 +1227,6 @@ CONFIG_LRU_GEN=y # CONFIG_LRU_GEN_STATS is not set CONFIG_ARCH_SUPPORTS_PER_VMA_LOCK=y CONFIG_PER_VMA_LOCK=y -CONFIG_GMEM=y CONFIG_LOCK_MM_AND_FIND_VMA=y CONFIG_IOMMU_MM_DATA=y CONFIG_PAGE_CACHE_LIMIT=y @@ -1233,6 +1235,7 @@ CONFIG_ETMEM_SCAN=m CONFIG_ETMEM_SWAP=m CONFIG_ETMEM=y # CONFIG_BPF_READAHEAD is not set +CONFIG_GMEM=y # # Data Access Monitoring @@ -1263,7 +1266,6 @@ CONFIG_SKB_EXTENSIONS=y CONFIG_PACKET=y CONFIG_PACKET_DIAG=m CONFIG_UNIX=y -CONFIG_UNIX_SCM=y CONFIG_AF_UNIX_OOB=y CONFIG_UNIX_DIAG=m CONFIG_TLS=m @@ -1286,11 +1288,11 @@ CONFIG_NET_KEY_MIGRATE=y CONFIG_SMC=m CONFIG_SMC_DIAG=m CONFIG_SMC_LO=y -CONFIG_UB_UMS=m -CONFIG_UB_SOCKET_HANDSHAKE=y CONFIG_XDP_SOCKETS=y CONFIG_XDP_SOCKETS_DIAG=y # CONFIG_OENETCLS is not set +CONFIG_UB_UMS=m +CONFIG_UB_SOCKET_HANDSHAKE=y CONFIG_NET_HANDSHAKE=y CONFIG_INET=y CONFIG_IP_MULTICAST=y @@ -1920,7 +1922,6 @@ CONFIG_CGROUP_NET_CLASSID=y CONFIG_NET_RX_BUSY_POLL=y CONFIG_BQL=y CONFIG_BPF_STREAM_PARSER=y -# CONFIG_HISOCK is not set CONFIG_NET_FLOW_LIMIT=y # @@ -2045,8 +2046,6 @@ CONFIG_NETACC_TERRACE=y # # Device Drivers # -CONFIG_HAVE_EISA=y -# CONFIG_EISA is not set CONFIG_HAVE_PCI=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y @@ -2177,9 +2176,6 @@ CONFIG_FW_CACHE=y CONFIG_FW_UPLOAD=y # end of Firmware loader -# fwctl -CONFIG_FWCTL=m - CONFIG_WANT_DEV_COREDUMP=y CONFIG_ALLOW_DEV_COREDUMP=y CONFIG_DEV_COREDUMP=y @@ -2271,6 +2267,7 @@ CONFIG_UEFI_CPER_X86=y # end of Tegra firmware driver # end of Firmware Drivers +CONFIG_FWCTL=m # CONFIG_GNSS is not set CONFIG_MTD=m # CONFIG_MTD_TESTS is not set @@ -3142,7 +3139,6 @@ CONFIG_NET_VENDOR_VERTEXCOM=y # CONFIG_MSE102X is not set # CONFIG_NET_VENDOR_VIA is not set CONFIG_NET_VENDOR_WANGXUN=y -CONFIG_LIBWX=m CONFIG_NGBE=m CONFIG_TXGBE=m # CONFIG_NET_VENDOR_WIZNET is not set @@ -3292,7 +3288,6 @@ CONFIG_MDIO_THUNDER=m # # PCS device drivers # -CONFIG_PCS_XPCS=m # end of PCS device drivers # CONFIG_PLIP is not set @@ -5780,6 +5775,7 @@ CONFIG_DRM_CIRRUS_QEMU=m # CONFIG_DRM_VBOXVIDEO is not set # CONFIG_DRM_GUD is not set # CONFIG_DRM_SSD130X is not set +CONFIG_DRM_PHYTIUM=m # CONFIG_DRM_HYPERV is not set # CONFIG_DRM_LEGACY is not set CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y @@ -8333,6 +8329,7 @@ CONFIG_OVERLAY_FS=m # CONFIG_OVERLAY_FS_XINO_AUTO is not set # CONFIG_OVERLAY_FS_METACOPY is not set # CONFIG_OVERLAY_FS_DEBUG is not set + # # Caches # @@ -8397,9 +8394,9 @@ CONFIG_TMPFS_XATTR=y # CONFIG_TMPFS_INODE64 is not set # CONFIG_TMPFS_QUOTA is not set CONFIG_HUGETLBFS=y +# CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON is not set CONFIG_HUGETLB_PAGE=y CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y -# CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON is not set CONFIG_HUGETLB_ALLOC_LIMIT=y CONFIG_ARCH_HAS_GIGANTIC_PAGE=y CONFIG_CONFIGFS_FS=y @@ -8486,6 +8483,7 @@ CONFIG_NFS_USE_KERNEL_DNS=y CONFIG_NFS_DEBUG=y # CONFIG_NFS_DISABLE_UDP_SUPPORT is not set # CONFIG_NFS_V4_2_READ_PLUS is not set +CONFIG_ENFS=m CONFIG_NFSD=m # CONFIG_NFSD_V2 is not set CONFIG_NFSD_V3_ACL=y @@ -8502,8 +8500,6 @@ CONFIG_LOCKD_V4=y CONFIG_NFS_ACL_SUPPORT=m CONFIG_NFS_COMMON=y CONFIG_NFS_V4_2_SSC_HELPER=y -CONFIG_ENFS=m -CONFIG_SUNRPC_ENFS=y CONFIG_SUNRPC=m CONFIG_SUNRPC_GSS=m CONFIG_SUNRPC_BACKCHANNEL=y @@ -8513,6 +8509,7 @@ CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA1=y # CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA2 is not set CONFIG_SUNRPC_DEBUG=y CONFIG_SUNRPC_XPRT_RDMA=m +CONFIG_SUNRPC_ENFS=y CONFIG_CEPH_FS=m # CONFIG_CEPH_FSCACHE is not set CONFIG_CEPH_FS_POSIX_ACL=y @@ -8710,8 +8707,6 @@ CONFIG_LSM="lockdown,yama,loadpin,safesetid,integrity,selinux,smack,tomoyo,appar # Memory initialization # CONFIG_INIT_STACK_NONE=y -# CONFIG_INIT_STACK_ALL_PATTERN is not set -# CONFIG_INIT_STACK_ALL_ZERO is not set # CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set # CONFIG_INIT_ON_FREE_DEFAULT_ON is not set # CONFIG_ZERO_CALL_USED_REGS is not set @@ -9231,6 +9226,10 @@ CONFIG_DEBUG_INFO_COMPRESSED_NONE=y # CONFIG_DEBUG_INFO_COMPRESSED_ZLIB is not set # CONFIG_DEBUG_INFO_SPLIT is not set CONFIG_DEBUG_INFO_BTF=y +CONFIG_PAHOLE_HAS_SPLIT_BTF=y +CONFIG_PAHOLE_HAS_LANG_EXCLUDE=y +CONFIG_DEBUG_INFO_BTF_MODULES=y +# CONFIG_MODULE_ALLOW_BTF_MISMATCH is not set # CONFIG_GDB_SCRIPTS is not set CONFIG_FRAME_WARN=2048 CONFIG_STRIP_ASM_SYMS=y -- 2.34.1

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[PATCH OLK-6.6 0/2] CVEs
by Liu Kai 19 May '26

19 May '26

CVEs Andrey Vatoropin (1): fbcon: check return value of con2fb_acquire_newinfo() Luiz Augusto von Dentz (1): Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ drivers/video/fbdev/core/fbcon.c | 3 ++- net/bluetooth/l2cap_core.c | 7 +++++++ 2 files changed, 9 insertions(+), 1 deletion(-) -- 2.34.1

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[PATCH OLK-5.10] mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()
by Yi Yang 19 May '26

19 May '26

From: Joonwon Kang <joonwonkang(a)google.com> mainline inclusion from mainline-v7.0-rc1 commit fcd7f96c783626c07ee3ed75fa3739a8a2052310 category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/14824 CVE: CVE-2026-43281 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Although it is guided that `#mbox-cells` must be at least 1, there are many instances of `#mbox-cells = <0>;` in the device tree. If that is the case and the corresponding mailbox controller does not provide `fw_xlate` and of_xlate` function pointers, `fw_mbox_index_xlate()` will be used by default and out-of-bounds accesses could occur due to lack of bounds check in that function. Cc: stable(a)vger.kernel.org Signed-off-by: Joonwon Kang <joonwonkang(a)google.com> Signed-off-by: Jassi Brar <jassisinghbrar(a)gmail.com> Conflicts: drivers/mailbox/mailbox.c [Commit ba879dfc0574 ("mailbox: Allow controller specific mapping using fwnode") was not merged. Context conflicts.] Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/mailbox/mailbox.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c index adf36c05fa43..19eefdf99058 100644 --- a/drivers/mailbox/mailbox.c +++ b/drivers/mailbox/mailbox.c @@ -507,12 +507,10 @@ static struct mbox_chan * of_mbox_index_xlate(struct mbox_controller *mbox, const struct of_phandle_args *sp) { - int ind = sp->args[0]; - - if (ind >= mbox->num_chans) + if (sp->args_count < 1 || sp->args[0] >= mbox->num_chans) return ERR_PTR(-EINVAL); - return &mbox->chans[ind]; + return &mbox->chans[sp->args[0]]; } /** -- 2.25.1

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[PATCH openEuler-1.0-LTS] mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()
by Yi Yang 19 May '26

19 May '26

From: Joonwon Kang <joonwonkang(a)google.com> mainline inclusion from mainline-v7.0-rc1 commit fcd7f96c783626c07ee3ed75fa3739a8a2052310 category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/14824 CVE: CVE-2026-43281 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Although it is guided that `#mbox-cells` must be at least 1, there are many instances of `#mbox-cells = <0>;` in the device tree. If that is the case and the corresponding mailbox controller does not provide `fw_xlate` and of_xlate` function pointers, `fw_mbox_index_xlate()` will be used by default and out-of-bounds accesses could occur due to lack of bounds check in that function. Cc: stable(a)vger.kernel.org Signed-off-by: Joonwon Kang <joonwonkang(a)google.com> Signed-off-by: Jassi Brar <jassisinghbrar(a)gmail.com> Conflicts: drivers/mailbox/mailbox.c [Commit ba879dfc0574 ("mailbox: Allow controller specific mapping using fwnode") was not merged. Context conflicts.] Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/mailbox/mailbox.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c index 055c90b8253c..275119136bde 100644 --- a/drivers/mailbox/mailbox.c +++ b/drivers/mailbox/mailbox.c @@ -432,12 +432,10 @@ static struct mbox_chan * of_mbox_index_xlate(struct mbox_controller *mbox, const struct of_phandle_args *sp) { - int ind = sp->args[0]; - - if (ind >= mbox->num_chans) + if (sp->args_count < 1 || sp->args[0] >= mbox->num_chans) return ERR_PTR(-EINVAL); - return &mbox->chans[ind]; + return &mbox->chans[sp->args[0]]; } /** -- 2.25.1

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[PATCH OLK-5.10 0/2] *** Fix CVE-2026-43428 ***
by Zhang Kunbo 19 May '26

19 May '26

*** Fix CVE-2026-43428 *** Alan Stern (2): USB: usbcore: Introduce usb_bulk_msg_killable() USB: core: Limit the length of unkillable synchronous timeouts drivers/usb/core/message.c | 97 ++++++++++++++++++++++++++++++-------- include/linux/usb.h | 8 +++- 2 files changed, 84 insertions(+), 21 deletions(-) -- 2.34.1

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[PATCH OLK-6.6] USB: core: Limit the length of unkillable synchronous timeouts
by Zhang Kunbo 19 May '26

19 May '26

From: Alan Stern <stern(a)rowland.harvard.edu> stable inclusion from stable-v6.6.130 commit 659c0c7d50a4b0f6aa197c4c098cfd91daf63862 category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/14986 CVE: CVE-2026-43428 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 1015c27a5e1a63efae2b18a9901494474b4d1dc3 upstream. The usb_control_msg(), usb_bulk_msg(), and usb_interrupt_msg() APIs in usbcore allow unlimited timeout durations. And since they use uninterruptible waits, this leaves open the possibility of hanging a task for an indefinitely long time, with no way to kill it short of unplugging the target device. To prevent this sort of problem, enforce a maximum limit on the length of these unkillable timeouts. The limit chosen here, somewhat arbitrarily, is 60 seconds. On many systems (although not all) this is short enough to avoid triggering the kernel's hung-task detector. In addition, clear up the ambiguity of negative timeout values by treating them the same as 0, i.e., using the maximum allowed timeout. Signed-off-by: Alan Stern <stern(a)rowland.harvard.edu> Link: https://lore.kernel.org/linux-usb/3acfe838-6334-4f6d-be7c-4bb01704b33d@rowl… Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") CC: stable(a)vger.kernel.org Link: https://patch.msgid.link/15fc9773-a007-47b0-a703-df89a8cf83dd@rowland.harva… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhang Kunbo <zhangkunbo(a)huawei.com> --- drivers/usb/core/message.c | 27 +++++++++++++-------------- include/linux/usb.h | 3 +++ 2 files changed, 16 insertions(+), 14 deletions(-) diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 858436862cbf..119d07c4c62b 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -45,6 +45,8 @@ static void usb_api_blocking_completion(struct urb *urb) * Starts urb and waits for completion or timeout. * Whether or not the wait is killable depends on the flag passed in. * For example, compare usb_bulk_msg() and usb_bulk_msg_killable(). + * + * For non-killable waits, we enforce a maximum limit on the timeout value. */ static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length, bool killable) @@ -61,7 +63,9 @@ static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length, if (unlikely(retval)) goto out; - expire = timeout ? msecs_to_jiffies(timeout) : MAX_SCHEDULE_TIMEOUT; + if (!killable && (timeout <= 0 || timeout > USB_MAX_SYNCHRONOUS_TIMEOUT)) + timeout = USB_MAX_SYNCHRONOUS_TIMEOUT; + expire = (timeout > 0) ? msecs_to_jiffies(timeout) : MAX_SCHEDULE_TIMEOUT; if (killable) rc = wait_for_completion_killable_timeout(&ctx.done, expire); else @@ -127,8 +131,7 @@ static int usb_internal_control_msg(struct usb_device *usb_dev, * @index: USB message index value * @data: pointer to the data to send * @size: length in bytes of the data to send - * @timeout: time in msecs to wait for the message to complete before timing - * out (if 0 the wait is forever) + * @timeout: time in msecs to wait for the message to complete before timing out * * Context: task context, might sleep. * @@ -183,8 +186,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg); * @index: USB message index value * @driver_data: pointer to the data to send * @size: length in bytes of the data to send - * @timeout: time in msecs to wait for the message to complete before timing - * out (if 0 the wait is forever) + * @timeout: time in msecs to wait for the message to complete before timing out * @memflags: the flags for memory allocation for buffers * * Context: !in_interrupt () @@ -242,8 +244,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg_send); * @index: USB message index value * @driver_data: pointer to the data to be filled in by the message * @size: length in bytes of the data to be received - * @timeout: time in msecs to wait for the message to complete before timing - * out (if 0 the wait is forever) + * @timeout: time in msecs to wait for the message to complete before timing out * @memflags: the flags for memory allocation for buffers * * Context: !in_interrupt () @@ -314,8 +315,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg_recv); * @len: length in bytes of the data to send * @actual_length: pointer to a location to put the actual length transferred * in bytes - * @timeout: time in msecs to wait for the message to complete before - * timing out (if 0 the wait is forever) + * @timeout: time in msecs to wait for the message to complete before timing out * * Context: task context, might sleep. * @@ -347,8 +347,7 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg); * @len: length in bytes of the data to send * @actual_length: pointer to a location to put the actual length transferred * in bytes - * @timeout: time in msecs to wait for the message to complete before - * timing out (if 0 the wait is forever) + * @timeout: time in msecs to wait for the message to complete before timing out * * Context: task context, might sleep. * @@ -408,12 +407,12 @@ EXPORT_SYMBOL_GPL(usb_bulk_msg); * @actual_length: pointer to a location to put the actual length transferred * in bytes * @timeout: time in msecs to wait for the message to complete before - * timing out (if 0 the wait is forever) + * timing out (if <= 0, the wait is as long as possible) * * Context: task context, might sleep. * - * This function is just like usb_blk_msg() except that it waits in a - * killable state. + * This function is just like usb_blk_msg(), except that it waits in a + * killable state and there is no limit on the timeout length. * * Return: * If successful, 0. Otherwise a negative error number. The number of actual diff --git a/include/linux/usb.h b/include/linux/usb.h index a3261427d6e0..6e6e32067148 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1843,6 +1843,9 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in, * SYNCHRONOUS CALL SUPPORT * *-------------------------------------------------------------------*/ +/* Maximum value allowed for timeout in synchronous routines below */ +#define USB_MAX_SYNCHRONOUS_TIMEOUT 60000 /* ms */ + extern int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, __u16 size, int timeout); -- 2.34.1

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[PATCH OLK-6.6 00/24] backport cpuidle patches from linux mainline
by Huisong Li 19 May '26

19 May '26

From: Hongye Lin <linhongye(a)h-partners.com> driver inclusion category: bugfix bugzilla: https://atomgit.com/openeuler/kernel/issues/9134 ---------------------------------------------------------------------- backport cpuidle patches from linux mainline Andy Shevchenko (1): ACPI: processor: idle: Replace strlcat() with better alternative Breno Leitao (1): ACPI: arm64: cpuidle: Tolerate platforms with no deep PSCI idle states Huisong Li (18): ACPI: processor: idle: Relocate state flags initialization ACPI: processor: idle: Drop redundant C-state count checks ACPI: processor: idle: Optimize ACPI idle driver registration ACPI: processor: Remove unused empty stubs of some functions ACPI: processor: idle: Rearrange declarations in header file ACPI: processor: Do not expose global variable acpi_idle_driver ACPI: processor: idle: Add debug log for states with invalid entry methods ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_states() to void ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_dev() to void ACPI: processor: idle: Rework the handling of acpi_processor_ffh_lpi_probe() ACPI: processor: idle: Remove redundant cstate check in acpi_processor_power_init ACPI: processor: idle: Move max_cstate update out of the loop ACPI: processor: idle: Remove redundant static variable and rename cstate check function ACPI: processor: idle: Reset power_setup_done flag on initialization failure ACPI: processor: idle: Fix NULL pointer dereference in hotplug path cpuidle: Simplify cpuidle_register_device() with guard() cpuidle: Extract and export no-lock variants of cpuidle_unregister_device() ACPI: processor: idle: Reset cpuidle on C-state list changes Jingkai Tan (1): ACPI: processor: idle: Add missing bounds check in flatten_lpi_states() Rafael J. Wysocki (3): ACPI: processor: idle: Eliminate static ACPI: processor: idle: Redefine two functions as void ACPI: processor: Update cpuidle driver check in __acpi_processor_start() arch/arm64/kernel/cpuidle.c | 10 +- drivers/acpi/processor_driver.c | 12 +- drivers/acpi/processor_idle.c | 297 +++++++++++++++++--------------- drivers/cpuidle/cpuidle.c | 34 ++-- include/acpi/processor.h | 35 +--- include/linux/cpuidle.h | 2 + 6 files changed, 200 insertions(+), 190 deletions(-) -- 2.33.0

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