April 2025 - Kernel - mailweb.openeuler.org

[PATCH OLK-6.6] nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
by Yi Yang 10 Apr '25

10 Apr '25

From: Maurizio Lombardi <mlombard(a)redhat.com> mainline inclusion from mainline-v6.14-rc6 commit ad95bab0cd28ed77c2c0d0b6e76e03e031391064 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBY43W CVE: CVE-2025-21927 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- nvme_tcp_recv_pdu() doesn't check the validity of the header length. When header digests are enabled, a target might send a packet with an invalid header length (e.g. 255), causing nvme_tcp_verify_hdgst() to access memory outside the allocated area and cause memory corruptions by overwriting it with the calculated digest. Fix this by rejecting packets with an unexpected header length. Fixes: 3f2304f8c6d6 ("nvme-tcp: add NVMe over TCP host driver") Signed-off-by: Maurizio Lombardi <mlombard(a)redhat.com> Reviewed-by: Sagi Grimberg <sagi(a)grimberg.me> Signed-off-by: Keith Busch <kbusch(a)kernel.org> Conflicts: drivers/nvme/host/tcp.c [Confilcts dues to no backport of 363895767fbf("nvme-tcp: sanitize TLS key handling") and 84e009042d0f("nvme-tcp: add basic support for the C2HTermReq PDU")] Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/nvme/host/tcp.c | 32 +++++++++++++++++++++++++++++--- 1 file changed, 29 insertions(+), 3 deletions(-) diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index be04c5f3856d..6076c0d2d97a 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -189,6 +189,19 @@ static inline int nvme_tcp_queue_id(struct nvme_tcp_queue *queue) return queue - queue->ctrl->queues; } +static inline bool nvme_tcp_recv_pdu_supported(enum nvme_tcp_pdu_type type) +{ + switch (type) { + case nvme_tcp_c2h_term: + case nvme_tcp_c2h_data: + case nvme_tcp_r2t: + case nvme_tcp_rsp: + return true; + default: + return false; + } +} + static inline struct blk_mq_tags *nvme_tcp_tagset(struct nvme_tcp_queue *queue) { u32 queue_idx = nvme_tcp_queue_id(queue); @@ -728,6 +741,16 @@ static int nvme_tcp_recv_pdu(struct nvme_tcp_queue *queue, struct sk_buff *skb, return 0; hdr = queue->pdu; + if (unlikely(hdr->hlen != sizeof(struct nvme_tcp_rsp_pdu))) { + if (!nvme_tcp_recv_pdu_supported(hdr->type)) + goto unsupported_pdu; + + dev_err(queue->ctrl->ctrl.device, + "pdu type %d has unexpected header length (%d)\n", + hdr->type, hdr->hlen); + return -EPROTO; + } + if (queue->hdr_digest) { ret = nvme_tcp_verify_hdgst(queue, queue->pdu, hdr->hlen); if (unlikely(ret)) @@ -751,10 +774,13 @@ static int nvme_tcp_recv_pdu(struct nvme_tcp_queue *queue, struct sk_buff *skb, nvme_tcp_init_recv_ctx(queue); return nvme_tcp_handle_r2t(queue, (void *)queue->pdu); default: - dev_err(queue->ctrl->ctrl.device, - "unsupported pdu type (%d)\n", hdr->type); - return -EINVAL; + goto unsupported_pdu; } + +unsupported_pdu: + dev_err(queue->ctrl->ctrl.device, + "unsupported pdu type (%d)\n", hdr->type); + return -EINVAL; } static inline void nvme_tcp_end_request(struct request *rq, u16 status) -- 2.25.1

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[PATCH openEuler-1.0-LTS 0/3] Fix CVE-2023-52973 for openEuler-1.0-LTS
by Yi Yang 10 Apr '25

10 Apr '25

CVE-2023-52973 and later patches. George Kennedy (2): vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF vc_screen: modify vcs_size() handling in vcs_read() Thomas Weißschuh (1): vc_screen: don't clobber return value in vcs_read drivers/tty/vt/vc_screen.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) -- 2.25.1

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[PATCH OLK-6.6 00/14] yt6801: Add Motorcomm yt6801 PCIe driver
by Frank Sae 10 Apr '25

10 Apr '25

This series includes adding Motorcomm YT6801 Gigabit ethernet driver and adding yt6801 ethernet driver entry in MAINTAINERS file. YT6801 integrates a YT8531S phy. Frank Sae (14): yt6801: Add support for a pci table in this module yt6801: Implement mdio register yt6801: Implement pci_driver shutdown yt6801: Implement the fxgmac_init function yt6801: Implement the .ndo_open function yt6801: Implement the fxgmac_start function net:phy:motorcomm: Add PHY_INTERFACE_MODE_INTERNAL to support YT6801 yt6801: Implement the fxgmac_hw_init function yt6801: Implement the poll functions yt6801: Implement .ndo_start_xmit function yt6801: Implement some net_device_ops function yt6801: Implement pci_driver suspend and resume yt6801: Add makefile and Kconfig yt6801: Update the Makefile, Kconfig and maintainer for yt6801 MAINTAINERS | 8 + arch/arm64/configs/openeuler_defconfig | 4 +- arch/powerpc/configs/openeuler_defconfig | 4 +- arch/riscv/configs/openeuler_defconfig | 4 +- arch/x86/configs/openeuler_defconfig | 4 +- drivers/net/ethernet/Kconfig | 1 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/motorcomm/Kconfig | 27 + drivers/net/ethernet/motorcomm/Makefile | 6 + .../net/ethernet/motorcomm/yt6801/Makefile | 8 + .../ethernet/motorcomm/yt6801/yt6801_desc.c | 565 ++++ .../ethernet/motorcomm/yt6801/yt6801_desc.h | 35 + .../ethernet/motorcomm/yt6801/yt6801_main.c | 3006 +++++++++++++++++ .../ethernet/motorcomm/yt6801/yt6801_type.h | 956 ++++++ drivers/net/phy/motorcomm.c | 6 + 15 files changed, 4631 insertions(+), 4 deletions(-) create mode 100644 drivers/net/ethernet/motorcomm/Kconfig create mode 100644 drivers/net/ethernet/motorcomm/Makefile create mode 100644 drivers/net/ethernet/motorcomm/yt6801/Makefile create mode 100644 drivers/net/ethernet/motorcomm/yt6801/yt6801_desc.c create mode 100644 drivers/net/ethernet/motorcomm/yt6801/yt6801_desc.h create mode 100644 drivers/net/ethernet/motorcomm/yt6801/yt6801_main.c create mode 100644 drivers/net/ethernet/motorcomm/yt6801/yt6801_type.h -- 2.34.1

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[openeuler:openEuler-1.0-LTS 1571/1571] block/blk-lib.o: warning: objtool: __blkdev_issue_discard()+0x146: unreachable instruction
by kernel test robot 10 Apr '25

10 Apr '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 332043630ae1e3b726dde819c6cb60a99afb2ad6 commit: dadc407ba9ceb5887da2bd4e4eedcf332bf47151 [1571/1571] block: check queue's limits.discard_granularity in __blkdev_issue_discard() config: x86_64-buildonly-randconfig-006-20250408 (https://download.01.org/0day-ci/archive/20250410/202504100333.uIAnI5Io-lkp@…) compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250410/202504100333.uIAnI5Io-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202504100333.uIAnI5Io-lkp@intel.com/ All warnings (new ones prefixed by >>): >> block/blk-lib.o: warning: objtool: __blkdev_issue_discard()+0x146: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1571/1571] mm/mincore.o: warning: objtool: mincore_pte_range()+0x154: unreachable instruction
by kernel test robot 09 Apr '25

09 Apr '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 332043630ae1e3b726dde819c6cb60a99afb2ad6 commit: 274fe639155078e031602764bfad9217e57d8160 [1571/1571] Revert "Change mincore() to count "mapped" pages rather than "cached" pages" config: x86_64-buildonly-randconfig-006-20250408 (https://download.01.org/0day-ci/archive/20250409/202504092107.ks7cBbF1-lkp@…) compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250409/202504092107.ks7cBbF1-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202504092107.ks7cBbF1-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/mincore.o: warning: objtool: mincore_pte_range()+0x154: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6] LoongArch: Set hugetlb mmap base address aligned with pmd size
by Zeng Heng 09 Apr '25

09 Apr '25

From: Bibo Mao <maobibo(a)loongson.cn> mainline inclusion from mainline-v6.14-rc6 commit 3109d5ff484b7bc7b955f166974c6776d91f247b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBY44L CVE: CVE-2025-21949 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- With ltp test case "testcases/bin/hugefork02", there is a dmesg error report message such as: kernel BUG at mm/hugetlb.c:5550! Oops - BUG[#1]: CPU: 0 UID: 0 PID: 1517 Comm: hugefork02 Not tainted 6.14.0-rc2+ #241 Hardware name: QEMU QEMU Virtual Machine, BIOS unknown 2/2/2022 pc 90000000004eaf1c ra 9000000000485538 tp 900000010edbc000 sp 900000010edbf940 a0 900000010edbfb00 a1 9000000108d20280 a2 00007fffe9474000 a3 00007ffff3474000 a4 0000000000000000 a5 0000000000000003 a6 00000000003cadd3 a7 0000000000000000 t0 0000000001ffffff t1 0000000001474000 t2 900000010ecd7900 t3 00007fffe9474000 t4 00007fffe9474000 t5 0000000000000040 t6 900000010edbfb00 t7 0000000000000001 t8 0000000000000005 u0 90000000004849d0 s9 900000010edbfa00 s0 9000000108d20280 s1 00007fffe9474000 s2 0000000002000000 s3 9000000108d20280 s4 9000000002b38b10 s5 900000010edbfb00 s6 00007ffff3474000 s7 0000000000000406 s8 900000010edbfa08 ra: 9000000000485538 unmap_vmas+0x130/0x218 ERA: 90000000004eaf1c __unmap_hugepage_range+0x6f4/0x7d0 PRMD: 00000004 (PPLV0 +PIE -PWE) EUEN: 00000007 (+FPE +SXE +ASXE -BTE) ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7) ESTAT: 000c0000 [BRK] (IS= ECode=12 EsubCode=0) PRID: 0014c010 (Loongson-64bit, Loongson-3A5000) Process hugefork02 (pid: 1517, threadinfo=00000000a670eaf4, task=000000007a95fc64) Call Trace: [<90000000004eaf1c>] __unmap_hugepage_range+0x6f4/0x7d0 [<9000000000485534>] unmap_vmas+0x12c/0x218 [<9000000000494068>] exit_mmap+0xe0/0x308 [<900000000025fdc4>] mmput+0x74/0x180 [<900000000026a284>] do_exit+0x294/0x898 [<900000000026aa30>] do_group_exit+0x30/0x98 [<900000000027bed4>] get_signal+0x83c/0x868 [<90000000002457b4>] arch_do_signal_or_restart+0x54/0xfa0 [<90000000015795e8>] irqentry_exit_to_user_mode+0xb8/0x138 [<90000000002572d0>] tlb_do_page_fault_1+0x114/0x1b4 The problem is that base address allocated from hugetlbfs is not aligned with pmd size. Here add a checking for hugetlbfs and align base address with pmd size. After this patch the test case "testcases/bin/hugefork02" passes to run. This is similar to the commit 7f24cbc9c4d42db8a3c8484d1 ("mm/mmap: teach generic_get_unmapped_area{_topdown} to handle hugetlb mappings"). Cc: stable(a)vger.kernel.org # 6.13+ Signed-off-by: Bibo Mao <maobibo(a)loongson.cn> Signed-off-by: Huacai Chen <chenhuacai(a)loongson.cn> Conflicts: arch/loongarch/mm/mmap.c [Fix context conflict.] Signed-off-by: Zeng Heng <zengheng4(a)huawei.com> --- arch/loongarch/mm/mmap.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/loongarch/mm/mmap.c b/arch/loongarch/mm/mmap.c index a9630a81b38a..01c20564f4b6 100644 --- a/arch/loongarch/mm/mmap.c +++ b/arch/loongarch/mm/mmap.c @@ -3,6 +3,7 @@ * Copyright (C) 2020-2022 Loongson Technology Corporation Limited */ #include <linux/export.h> +#include <linux/hugetlb.h> #include <linux/io.h> #include <linux/memblock.h> #include <linux/mm.h> @@ -62,8 +63,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, } info.length = len; - info.align_mask = do_color_align ? (PAGE_MASK & SHM_ALIGN_MASK) : 0; info.align_offset = pgoff << PAGE_SHIFT; + if (filp && is_file_hugepages(filp)) + info.align_mask = huge_page_mask_align(filp); + else + info.align_mask = do_color_align ? (PAGE_MASK & SHM_ALIGN_MASK) : 0; if (dir == DOWN) { info.flags = VM_UNMAPPED_AREA_TOPDOWN; -- 2.25.1

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[PATCH openEuler-1.0-LTS] io_uring: prevent opcode speculation
by Long Li 09 Apr '25

09 Apr '25

From: Pavel Begunkov <asml.silence(a)gmail.com> mainline inclusion from mainline-v6.10-rc2 commit 1e988c3fe1264708f4f92109203ac5b1d65de50b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBSVZU CVE: CVE-2025-21863 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- sqe->opcode is used for different tables, make sure we santitise it against speculations. Cc: stable(a)vger.kernel.org Fixes: d3656344fea03 ("io_uring: add lookup table for various opcode needs") Signed-off-by: Pavel Begunkov <asml.silence(a)gmail.com> Reviewed-by: Li Zetao <lizetao1(a)huawei.com> Link: https://lore.kernel.org/r/7eddbf31c8ca0a3947f8ed98271acc2b4349c016.17395684… Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Conflicts: io_uring/io_uring.c fs/io_uring.c [Context conflict] Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/io_uring.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index 96255b816d71..470d50c0b4c3 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -6390,6 +6390,8 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req, if (unlikely(sqe_flags & ~SQE_VALID_FLAGS)) return -EINVAL; + req->opcode = array_index_nospec(req->opcode, IORING_OP_LAST); + if ((sqe_flags & IOSQE_BUFFER_SELECT) && !io_op_defs[req->opcode].buffer_select) return -EOPNOTSUPP; -- 2.39.2

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openEuler Kernel SIG双周例会
by openEuler conference 09 Apr '25

09 Apr '25

您好！ Kernel 邀请您参加 2025-04-11 14:00 召开的WeLink会议(自动录制) 会议主题：openEuler Kernel SIG双周例会会议内容： 1. 进展update 2. 议题征集中（新增议题可回复此邮件申报，或者直接填报至会议纪要看板）会议链接：https://meeting.huaweicloud.com:36443/#/j/960387240 会议纪要：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 2025-04-11 14:00, The subject of the conference is openEuler Kernel SIG双周例会 Summary: 1. 进展update 2. 议题征集中（新增议题可回复此邮件申报，或者直接填报至会议纪要看板） You can join the meeting at https://meeting.huaweicloud.com:36443/#/j/960387240 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 00/17] fs/resctrl: Introduce the resctrl_feat_type
by Zeng Heng 09 Apr '25

09 Apr '25

Zeng Heng (17): arm64/mpam: fix memleak in resctrl_arch_mon_ctx_alloc_no_wait() arm64/mpam: fix impossible condition in get_cpumask_from_cache_id() arm64/mpam: fix impossible condition in resctrl_arch_rmid_read() arm64/mpam: Optimize CSU/MBWU monitor multiplexing fs/resctrl: Determine whether the MBM monitors require overflow checking arm64/mpam: Set the cpbm width of msc class with the minimum arm64/mpam: Correct the judgment condition of the CMAX feature fs/resctrl: Fix kmemleak caused by closid_init() fs/resctrl: Introduce the resctrl_feat_type fs/resctrl: Add mbw_min and cmin features arm64/mpam: Add PRIO feature arm64/mpam: Add CMAX feature arm64/mpam: Add PBM feature arm64/mpam: Add limit feature arm64/mpam: Fix allocated cache size information fs/resctrl: Fix configuration to wrong control group when CDP is enabled arm64/mpam: Add debugging information about CDP monitor value arch/x86/include/asm/resctrl.h | 29 ++ arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 39 +-- drivers/platform/mpam/mpam_devices.c | 101 +++++-- drivers/platform/mpam/mpam_internal.h | 25 +- drivers/platform/mpam/mpam_resctrl.c | 347 +++++++++++++++++----- fs/resctrl/ctrlmondata.c | 141 ++++++++- fs/resctrl/monitor.c | 5 +- fs/resctrl/rdtgroup.c | 135 +++++---- include/linux/arm_mpam.h | 7 + include/linux/resctrl.h | 17 +- include/linux/resctrl_types.h | 10 + 11 files changed, 661 insertions(+), 195 deletions(-) -- 2.25.1

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[PATCH OLK-6.6 00/17] fs/resctrl: Introduce the resctrl_feat_type
by Zeng Heng 09 Apr '25

09 Apr '25

Zeng Heng (17): arm64/mpam: fix memleak in resctrl_arch_mon_ctx_alloc_no_wait() arm64/mpam: fix impossible condition in get_cpumask_from_cache_id() arm64/mpam: fix impossible condition in resctrl_arch_rmid_read() arm64/mpam: Optimize CSU/MBWU monitor multiplexing fs/resctrl: Determine whether the MBM monitors require overflow checking arm64/mpam: Set the cpbm width of msc class with the minimum arm64/mpam: Correct the judgment condition of the CMAX feature fs/resctrl: Fix kmemleak caused by closid_init() fs/resctrl: Introduce the resctrl_feat_type fs/resctrl: Add mbw_min and cmin features arm64/mpam: Add PRIO feature arm64/mpam: Add CMAX feature arm64/mpam: Add PBM feature arm64/mpam: Add limit feature arm64/mpam: Fix allocated cache size information fs/resctrl: Fix configuration to wrong control group when CDP is enabled arm64/mpam: Add debugging information about CDP monitor value arch/x86/include/asm/resctrl.h | 29 ++ arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 39 +-- drivers/platform/mpam/mpam_devices.c | 101 +++++-- drivers/platform/mpam/mpam_internal.h | 25 +- drivers/platform/mpam/mpam_resctrl.c | 347 +++++++++++++++++----- fs/resctrl/ctrlmondata.c | 141 ++++++++- fs/resctrl/monitor.c | 5 +- fs/resctrl/rdtgroup.c | 135 +++++---- include/linux/arm_mpam.h | 7 + include/linux/resctrl.h | 17 +- include/linux/resctrl_types.h | 10 + 11 files changed, 661 insertions(+), 195 deletions(-) -- 2.25.1

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