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[PATCH OLK-6.6 0/2] Fix watchdog false positive problem
by Luo Gengkun 10 Jun '25

10 Jun '25

Luo Gengkun (1): watchdog: fix watchdog may detect false positive of softlockup Nysal Jan K.A (1): watchdog: fix the SOFTLOCKUP_DETECTOR=n case kernel/watchdog.c | 41 +++++++++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 14 deletions(-) -- 2.34.1

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[PATCH OLK-6.6 0/2] Fix watchdog false positive problem
by Luo Gengkun 10 Jun '25

10 Jun '25

Luo Gengkun (1): [Backport] watchdog: fix watchdog may detect false positive of softlockup Nysal Jan K.A (1): [Backport] watchdog: fix the SOFTLOCKUP_DETECTOR=n case kernel/watchdog.c | 41 +++++++++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 14 deletions(-) -- 2.34.1

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[openeuler:OLK-5.10 2954/2954] net/ipv4/sysctl_net_ipv4.c:477:50: sparse: sparse: incorrect type in argument 3 (different address spaces)
by kernel test robot 10 Jun '25

10 Jun '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 90ff3e07cc268a8e40bd578dcc4907a3db419c52 commit: dae7bed961c55d9837eada7f98f34f1adb0e9d21 [2954/2954] tcp_comp: add sysctl for enable/disable compression config: arm64-randconfig-r133-20250610 (https://download.01.org/0day-ci/archive/20250610/202506101624.VyZdjKoM-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.3.0 reproduce: (https://download.01.org/0day-ci/archive/20250610/202506101624.VyZdjKoM-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/202506101624.VyZdjKoM-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> net/ipv4/sysctl_net_ipv4.c:477:50: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void * @@ got void [noderef] __user *buffer @@ net/ipv4/sysctl_net_ipv4.c:477:50: sparse: expected void * net/ipv4/sysctl_net_ipv4.c:477:50: sparse: got void [noderef] __user *buffer >> net/ipv4/sysctl_net_ipv4.c:621:35: sparse: sparse: incorrect type in initializer (incompatible argument 3 (different address spaces)) @@ expected int ( [usertype] *proc_handler )( ... ) @@ got int ( * )( ... ) @@ net/ipv4/sysctl_net_ipv4.c:621:35: sparse: expected int ( [usertype] *proc_handler )( ... ) net/ipv4/sysctl_net_ipv4.c:621:35: sparse: got int ( * )( ... ) vim +477 net/ipv4/sysctl_net_ipv4.c 467 468 #if IS_ENABLED(CONFIG_TCP_COMP) 469 static int proc_tcp_compression_ports(struct ctl_table *table, int write, 470 void __user *buffer, size_t *lenp, 471 loff_t *ppos) 472 { 473 unsigned long *bitmap = *(unsigned long **)table->data; 474 unsigned long bitmap_len = table->maxlen; 475 int ret; 476 > 477 ret = proc_do_large_bitmap(table, write, buffer, lenp, ppos); 478 if (write && ret == 0) { 479 if (bitmap_empty(bitmap, bitmap_len)) { 480 if (static_key_enabled(&tcp_have_comp)) 481 static_branch_disable(&tcp_have_comp); 482 } else { 483 if (!static_key_enabled(&tcp_have_comp)) 484 static_branch_enable(&tcp_have_comp); 485 } 486 } 487 488 return ret; 489 } 490 #endif 491 492 static struct ctl_table ipv4_table[] = { 493 { 494 .procname = "tcp_max_orphans", 495 .data = &sysctl_tcp_max_orphans, 496 .maxlen = sizeof(int), 497 .mode = 0644, 498 .proc_handler = proc_dointvec 499 }, 500 { 501 .procname = "inet_peer_threshold", 502 .data = &inet_peer_threshold, 503 .maxlen = sizeof(int), 504 .mode = 0644, 505 .proc_handler = proc_dointvec 506 }, 507 { 508 .procname = "inet_peer_minttl", 509 .data = &inet_peer_minttl, 510 .maxlen = sizeof(int), 511 .mode = 0644, 512 .proc_handler = proc_dointvec_jiffies, 513 }, 514 { 515 .procname = "inet_peer_maxttl", 516 .data = &inet_peer_maxttl, 517 .maxlen = sizeof(int), 518 .mode = 0644, 519 .proc_handler = proc_dointvec_jiffies, 520 }, 521 { 522 .procname = "tcp_mem", 523 .maxlen = sizeof(sysctl_tcp_mem), 524 .data = &sysctl_tcp_mem, 525 .mode = 0644, 526 .proc_handler = proc_doulongvec_minmax, 527 }, 528 { 529 .procname = "tcp_low_latency", 530 .data = &sysctl_tcp_low_latency, 531 .maxlen = sizeof(int), 532 .mode = 0644, 533 .proc_handler = proc_dointvec 534 }, 535 #ifdef CONFIG_NETLABEL 536 { 537 .procname = "cipso_cache_enable", 538 .data = &cipso_v4_cache_enabled, 539 .maxlen = sizeof(int), 540 .mode = 0644, 541 .proc_handler = proc_dointvec, 542 }, 543 { 544 .procname = "cipso_cache_bucket_size", 545 .data = &cipso_v4_cache_bucketsize, 546 .maxlen = sizeof(int), 547 .mode = 0644, 548 .proc_handler = proc_dointvec, 549 }, 550 { 551 .procname = "cipso_rbm_optfmt", 552 .data = &cipso_v4_rbm_optfmt, 553 .maxlen = sizeof(int), 554 .mode = 0644, 555 .proc_handler = proc_dointvec, 556 }, 557 { 558 .procname = "cipso_rbm_strictvalid", 559 .data = &cipso_v4_rbm_strictvalid, 560 .maxlen = sizeof(int), 561 .mode = 0644, 562 .proc_handler = proc_dointvec, 563 }, 564 #endif /* CONFIG_NETLABEL */ 565 { 566 .procname = "tcp_available_ulp", 567 .maxlen = TCP_ULP_BUF_MAX, 568 .mode = 0444, 569 .proc_handler = proc_tcp_available_ulp, 570 }, 571 { 572 .procname = "icmp_msgs_per_sec", 573 .data = &sysctl_icmp_msgs_per_sec, 574 .maxlen = sizeof(int), 575 .mode = 0644, 576 .proc_handler = proc_dointvec_minmax, 577 .extra1 = SYSCTL_ZERO, 578 }, 579 { 580 .procname = "icmp_msgs_burst", 581 .data = &sysctl_icmp_msgs_burst, 582 .maxlen = sizeof(int), 583 .mode = 0644, 584 .proc_handler = proc_dointvec_minmax, 585 .extra1 = SYSCTL_ZERO, 586 }, 587 { 588 .procname = "udp_mem", 589 .data = &sysctl_udp_mem, 590 .maxlen = sizeof(sysctl_udp_mem), 591 .mode = 0644, 592 .proc_handler = proc_doulongvec_minmax, 593 }, 594 { 595 .procname = "fib_sync_mem", 596 .data = &sysctl_fib_sync_mem, 597 .maxlen = sizeof(sysctl_fib_sync_mem), 598 .mode = 0644, 599 .proc_handler = proc_douintvec_minmax, 600 .extra1 = &sysctl_fib_sync_mem_min, 601 .extra2 = &sysctl_fib_sync_mem_max, 602 }, 603 { 604 .procname = "tcp_rx_skb_cache", 605 .data = &tcp_rx_skb_cache_key.key, 606 .mode = 0644, 607 .proc_handler = proc_do_static_key, 608 }, 609 { 610 .procname = "tcp_tx_skb_cache", 611 .data = &tcp_tx_skb_cache_key.key, 612 .mode = 0644, 613 .proc_handler = proc_do_static_key, 614 }, 615 #if IS_ENABLED(CONFIG_TCP_COMP) 616 { 617 .procname = "tcp_compression_ports", 618 .data = &sysctl_tcp_compression_ports, 619 .maxlen = 65536, 620 .mode = 0644, > 621 .proc_handler = proc_tcp_compression_ports, 622 }, 623 #endif 624 { } 625 }; 626 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-5.10 v7 00/12] arm64: Support xcall prefetch
by Jinjie Ruan 10 Jun '25

10 Jun '25

Support xcall prefetch. Changes in v7: - Remove "echo @xxx > /proc/$PID/xcall" usage, replace with "echo 1 > /proc/$PID/prefetch". Now the xcall enable and prefetch can be enabled separately. Changes in v6: - Only use one reserved kabi in task_struct for xcall. - Free prefetch item after eventpoll_release_file() to avoid possible competition between ep_prefetch_item_enqueue() and pfi free. - Fix "echo > /proc/xcall/cpu_list" show problem. Changes in v5: - Fix dentry free before free_prefetch_item() and then UAF in prefetch work by cancel_work_sync() before free pfi and move free_prefetch_item() to the first of __fput(). - Fix __queue_work() oops bug. - /proc/xcall/mask_list -> /proc/xcall/cpu_list - Fix xcall_prefetch print data type. - Update prefetch tracepoint, move xcall points definition to separete header file. - Make xcall_prefetch depends on EPOLL. - Adjust xcall prefetch buf to 16KB by default. - Add xcall_prefetch_init() function. - Only use write lock in free_prefetch_item(). - Simplify xcall_read() and add some comment. - Update commit message. Changes in v4: - Enable FAST_SYSCALL/IRQ and XCALL_PREFETCH by default. - Fix xint sleeping function called from invalid context bug. - free_prefetch_item() in file_free() instead of filp_close(), which fix the alloc-queue and free competition. - Fix kernel_read() warning for FMODE_READ not set. - Add sock_from_file() limit for prefetch. - Check NULL for rc_work. - Simplfy the cpumask interface code, and rename to "/proc/xcall/mask_list". - Remove the xcall_cache_pages_order interface. - tracepoint update: fd -> file. - Simplify the xcall_read() function again. - Handle copy_to_user() return value. - Remove unused XCALL_CACHE_QUEUED. - Update the commit message. Changes in v3: - Add XCALL_PREFETCH config to isolate feature code. - Split the /proc/xxx interface code out to independent patches, which will make it clear. - Update the cpumask interface to "/proc/xcall/numa_mask", and it can set the numa mask of all numas one time. - Add xcall select count to make xcall_cache_pages_order adjust safe. - Introduce xcall_read_start/end() to make it clear. - Simplify the xcall_read() function. - Use cpumask_next() instead of get_nth_cpu_in_cpumask() function. - Use independent cpu select policy function. - Remove some unnecessary pr_err(). - Update the commit message. Changes in v2: - Upadte the xcall prefetch state machine, remove the queued state and add prefetch, cancel states. - Remove the pfi lock and use atomic variables. - Change the 'xcall select' semantics and simplify the code a lot. - Remove keep_running, remove unrelated code. - Remove the count in struct read_cache_entry, and use percpu hit/miss count. - Remove sync mode, so remove struct read_cache_entry in struct task_struct. - Use hash table to find prefetch item for a file, which will not change the file struct KABI. - Use rwlock instead of spinlock for hash table. - Use alloc_page() instead kmalloc() to align 4KB. - Update the commit message. Jinjie Ruan (9): arm64: Introduce Xint software solution arm64: Add debugfs dir for xint arm64: Reserve a kabi in task_struct exclusively for xcall arm64: Introduce xcall prefetch enable interface eventpoll: xcall: Support async prefetch data in epoll xcall: Add /proc/xcall/prefetch dir for performance tuning xcall: Add /proc/xcall/cpu_list for performance tuning xcall: eventpoll: add tracepoint config: Enable FAST_SYSCALL/IRQ and XCALL_PREFETCH by default Liao Chen (1): revert kpti bypass Yipeng Zou (2): arm64: Introduce xcall a faster svc exception handling arm64: Faster SVC exception handler with xcall arch/Kconfig | 81 +++++ arch/arm64/Kconfig | 2 + arch/arm64/configs/openeuler_defconfig | 7 + arch/arm64/include/asm/cpucaps.h | 2 + arch/arm64/include/asm/exception.h | 3 + arch/arm64/kernel/asm-offsets.c | 3 + arch/arm64/kernel/cpufeature.c | 56 ++++ arch/arm64/kernel/entry-common.c | 22 ++ arch/arm64/kernel/entry.S | 183 ++++++++++- arch/arm64/kernel/syscall.c | 57 ++++ drivers/irqchip/irq-gic-v3.c | 130 ++++++++ fs/eventpoll.c | 408 +++++++++++++++++++++++++ fs/file_table.c | 1 + fs/proc/base.c | 183 +++++++++++ fs/read_write.c | 10 +- include/linux/fs.h | 35 +++ include/linux/hardirq.h | 5 + include/linux/irqchip/arm-gic-v3.h | 13 + include/linux/sched.h | 4 + include/linux/xcall.h | 17 ++ include/trace/events/xcall.h | 106 +++++++ kernel/fork.c | 24 ++ kernel/irq/debugfs.c | 33 ++ kernel/irq/internals.h | 18 ++ kernel/irq/irqdesc.c | 19 ++ kernel/irq/proc.c | 10 + kernel/softirq.c | 73 +++++ 27 files changed, 1502 insertions(+), 3 deletions(-) create mode 100644 include/linux/xcall.h create mode 100644 include/trace/events/xcall.h -- 2.34.1

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[PATCH OLK-6.6 0/2] Fix watchdog false positive problem
by Luo Gengkun 10 Jun '25

10 Jun '25

Luo Gengkun (1): watchdog: fix watchdog may detect false positive of softlockup Nysal Jan K.A (1): watchdog: fix the SOFTLOCKUP_DETECTOR=n case kernel/watchdog.c | 41 +++++++++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 14 deletions(-) -- 2.34.1

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[PATCH OLK-5.10 0/2] Fix watchdog false positive problem
by Luo Gengkun 10 Jun '25

10 Jun '25

Luo Gengkun (1): watchdog: fix watchdog may detect false positive of softlockup Nysal Jan K.A (1): watchdog: fix the SOFTLOCKUP_DETECTOR=n case include/linux/nmi.h | 1 + kernel/sysctl.c | 2 +- kernel/watchdog.c | 39 ++++++++++++++++++++++++++------------- 3 files changed, 28 insertions(+), 14 deletions(-) -- 2.34.1

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[PATCH OLK-6.6 0/9] merge CVE patches into OLK-6.6
by Nanyong Sun 10 Jun '25

10 Jun '25

From: Kaixiong Yu <yukaixiong(a)huawei.com> merge CVE patches into OLK-6.6 the CVE No. as listed: CVE-2025-37930 CVE-2025-37849 CVE-2025-23149 CVE-2025-39735 CVE-2025-38152 CVE-2025-21861 CVE-2024-47732 Bjorn Andersson (1): Revert "remoteproc: core: Clear table_sz when rproc_shutdown" Dan Carpenter (1): crypto: iaa - Fix potential use after free bug David Hildenbrand (1): mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() Kefeng Wang (1): mm: migrate_device: use more folio in migrate_device_finalize() Peng Fan (1): remoteproc: core: Clear table_sz when rproc_shutdown Philipp Stanner (1): drm/nouveau: Fix WARN_ON in nouveau_fence_context_kill() Qasim Ijaz (1): jfs: fix slab-out-of-bounds read in ea_get() Thadeu Lima de Souza Cascardo (1): tpm: do not start chip while suspended Will Deacon (1): KVM: arm64: Tear down vGIC on failed vCPU creation arch/arm64/kvm/arm.c | 6 +++- drivers/char/tpm/tpm-chip.c | 5 +++ drivers/char/tpm/tpm-interface.c | 7 ---- drivers/crypto/intel/iaa/iaa_crypto_main.c | 4 +-- drivers/gpu/drm/nouveau/nouveau_fence.c | 2 +- fs/jfs/xattr.c | 15 +++++--- mm/migrate_device.c | 42 +++++++++++----------- 7 files changed, 43 insertions(+), 38 deletions(-) -- 2.34.1

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[PATCH OLK-5.10 v7 RESEND 00/12] arm64: Support xcall prefetch
by Jinjie Ruan 10 Jun '25

10 Jun '25

Support xcall prefetch. Changes in v7: - Remove "echo @xxx > /proc/$PID/xcall" usage, replace with "echo 1 > /proc/$PID/prefetch". Now the xcall enable and prefetch can be enabled separately. Changes in v6: - Only use one reserved kabi in task_struct for xcall. - Free prefetch item after eventpoll_release_file() to avoid possible competition between ep_prefetch_item_enqueue() and pfi free. - Fix "echo > /proc/xcall/cpu_list" show problem. Changes in v5: - Fix dentry free before free_prefetch_item() and then UAF in prefetch work by cancel_work_sync() before free pfi and move free_prefetch_item() to the first of __fput(). - Fix __queue_work() oops bug. - /proc/xcall/mask_list -> /proc/xcall/cpu_list - Fix xcall_prefetch print data type. - Update prefetch tracepoint, move xcall points definition to separete header file. - Make xcall_prefetch depends on EPOLL. - Adjust xcall prefetch buf to 16KB by default. - Add xcall_prefetch_init() function. - Only use write lock in free_prefetch_item(). - Simplify xcall_read() and add some comment. - Update commit message. Changes in v4: - Enable FAST_SYSCALL/IRQ and XCALL_PREFETCH by default. - Fix xint sleeping function called from invalid context bug. - free_prefetch_item() in file_free() instead of filp_close(), which fix the alloc-queue and free competition. - Fix kernel_read() warning for FMODE_READ not set. - Add sock_from_file() limit for prefetch. - Check NULL for rc_work. - Simplfy the cpumask interface code, and rename to "/proc/xcall/mask_list". - Remove the xcall_cache_pages_order interface. - tracepoint update: fd -> file. - Simplify the xcall_read() function again. - Handle copy_to_user() return value. - Remove unused XCALL_CACHE_QUEUED. - Update the commit message. Changes in v3: - Add XCALL_PREFETCH config to isolate feature code. - Split the /proc/xxx interface code out to independent patches, which will make it clear. - Update the cpumask interface to "/proc/xcall/numa_mask", and it can set the numa mask of all numas one time. - Add xcall select count to make xcall_cache_pages_order adjust safe. - Introduce xcall_read_start/end() to make it clear. - Simplify the xcall_read() function. - Use cpumask_next() instead of get_nth_cpu_in_cpumask() function. - Use independent cpu select policy function. - Remove some unnecessary pr_err(). - Update the commit message. Changes in v2: - Upadte the xcall prefetch state machine, remove the queued state and add prefetch, cancel states. - Remove the pfi lock and use atomic variables. - Change the 'xcall select' semantics and simplify the code a lot. - Remove keep_running, remove unrelated code. - Remove the count in struct read_cache_entry, and use percpu hit/miss count. - Remove sync mode, so remove struct read_cache_entry in struct task_struct. - Use hash table to find prefetch item for a file, which will not change the file struct KABI. - Use rwlock instead of spinlock for hash table. - Use alloc_page() instead kmalloc() to align 4KB. - Update the commit message. Jinjie Ruan (9): arm64: Introduce Xint software solution arm64: Add debugfs dir for xint arm64: Reserve a kabi in task_struct exclusively for xcall arm64: Introduce xcall prefetch enable interface eventpoll: xcall: Support async prefetch data in epoll xcall: Add /proc/xcall/prefetch dir for performance tuning xcall: Add /proc/xcall/cpu_list for performance tuning xcall: eventpoll: add tracepoint config: Enable FAST_SYSCALL/IRQ and XCALL_PREFETCH by default Liao Chen (1): revert kpti bypass Yipeng Zou (2): arm64: Introduce xcall a faster svc exception handling arm64: Faster SVC exception handler with xcall arch/Kconfig | 81 +++++ arch/arm64/Kconfig | 2 + arch/arm64/configs/openeuler_defconfig | 7 + arch/arm64/include/asm/cpucaps.h | 2 + arch/arm64/include/asm/exception.h | 3 + arch/arm64/kernel/asm-offsets.c | 3 + arch/arm64/kernel/cpufeature.c | 56 ++++ arch/arm64/kernel/entry-common.c | 22 ++ arch/arm64/kernel/entry.S | 183 ++++++++++- arch/arm64/kernel/syscall.c | 57 ++++ drivers/irqchip/irq-gic-v3.c | 130 ++++++++ fs/eventpoll.c | 408 +++++++++++++++++++++++++ fs/file_table.c | 1 + fs/proc/base.c | 183 +++++++++++ fs/read_write.c | 10 +- include/linux/fs.h | 35 +++ include/linux/hardirq.h | 5 + include/linux/irqchip/arm-gic-v3.h | 13 + include/linux/sched.h | 4 + include/linux/xcall.h | 17 ++ include/trace/events/xcall.h | 106 +++++++ kernel/fork.c | 24 ++ kernel/irq/debugfs.c | 33 ++ kernel/irq/internals.h | 18 ++ kernel/irq/irqdesc.c | 19 ++ kernel/irq/proc.c | 10 + kernel/softirq.c | 73 +++++ 27 files changed, 1502 insertions(+), 3 deletions(-) create mode 100644 include/linux/xcall.h create mode 100644 include/trace/events/xcall.h -- 2.34.1

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[PATCH OLK-5.10 v7 00/12] arm64: Support xcall prefetch
by Jinjie Ruan 10 Jun '25

10 Jun '25

Support xcall prefetch. Changes in v7: - Remove "echo @xxx > /proc/$PID/xcall" usage, replace with "echo 1 > /proc/$PID/prefetch". Now the xcall enable and prefetch can be enabled separately. Changes in v6: - Only use one reserved kabi in task_struct for xcall. - Free prefetch item after eventpoll_release_file() to avoid possible competition between ep_prefetch_item_enqueue() and pfi free. - Fix "echo > /proc/xcall/cpu_list" show problem. Changes in v5: - Fix dentry free before free_prefetch_item() and then UAF in prefetch work by cancel_work_sync() before free pfi and move free_prefetch_item() to the first of __fput(). - Fix __queue_work() oops bug. - /proc/xcall/mask_list -> /proc/xcall/cpu_list - Fix xcall_prefetch print data type. - Update prefetch tracepoint, move xcall points definition to separete header file. - Make xcall_prefetch depends on EPOLL. - Adjust xcall prefetch buf to 16KB by default. - Add xcall_prefetch_init() function. - Only use write lock in free_prefetch_item(). - Simplify xcall_read() and add some comment. - Update commit message. Changes in v4: - Enable FAST_SYSCALL/IRQ and XCALL_PREFETCH by default. - Fix xint sleeping function called from invalid context bug. - free_prefetch_item() in file_free() instead of filp_close(), which fix the alloc-queue and free competition. - Fix kernel_read() warning for FMODE_READ not set. - Add sock_from_file() limit for prefetch. - Check NULL for rc_work. - Simplfy the cpumask interface code, and rename to "/proc/xcall/mask_list". - Remove the xcall_cache_pages_order interface. - tracepoint update: fd -> file. - Simplify the xcall_read() function again. - Handle copy_to_user() return value. - Remove unused XCALL_CACHE_QUEUED. - Update the commit message. Changes in v3: - Add XCALL_PREFETCH config to isolate feature code. - Split the /proc/xxx interface code out to independent patches, which will make it clear. - Update the cpumask interface to "/proc/xcall/numa_mask", and it can set the numa mask of all numas one time. - Add xcall select count to make xcall_cache_pages_order adjust safe. - Introduce xcall_read_start/end() to make it clear. - Simplify the xcall_read() function. - Use cpumask_next() instead of get_nth_cpu_in_cpumask() function. - Use independent cpu select policy function. - Remove some unnecessary pr_err(). - Update the commit message. Changes in v2: - Upadte the xcall prefetch state machine, remove the queued state and add prefetch, cancel states. - Remove the pfi lock and use atomic variables. - Change the 'xcall select' semantics and simplify the code a lot. - Remove keep_running, remove unrelated code. - Remove the count in struct read_cache_entry, and use percpu hit/miss count. - Remove sync mode, so remove struct read_cache_entry in struct task_struct. - Use hash table to find prefetch item for a file, which will not change the file struct KABI. - Use rwlock instead of spinlock for hash table. - Use alloc_page() instead kmalloc() to align 4KB. - Update the commit message. Jinjie Ruan (9): arm64: Introduce Xint software solution arm64: Add debugfs dir for xint arm64: Reserve a kabi in task_struct exclusively for xcall arm64: Introduce xcall prefetch enable interface eventpoll: xcall: Support async prefetch data in epoll xcall: Add /proc/xcall/prefetch dir for performance tuning xcall: Add /proc/xcall/cpu_list for performance tuning xcall: eventpoll: add tracepoint config: Enable FAST_SYSCALL/IRQ and XCALL_PREFETCH by default Liao Chen (1): revert kpti bypass Yipeng Zou (2): arm64: Introduce xcall a faster svc exception handling arm64: Faster SVC exception handler with xcall arch/Kconfig | 81 +++++ arch/arm64/Kconfig | 2 + arch/arm64/configs/openeuler_defconfig | 7 + arch/arm64/include/asm/cpucaps.h | 2 + arch/arm64/include/asm/exception.h | 3 + arch/arm64/kernel/asm-offsets.c | 3 + arch/arm64/kernel/cpufeature.c | 56 ++++ arch/arm64/kernel/entry-common.c | 22 ++ arch/arm64/kernel/entry.S | 183 ++++++++++- arch/arm64/kernel/syscall.c | 57 ++++ drivers/irqchip/irq-gic-v3.c | 130 ++++++++ fs/eventpoll.c | 408 +++++++++++++++++++++++++ fs/file_table.c | 1 + fs/proc/base.c | 183 +++++++++++ fs/read_write.c | 10 +- include/linux/fs.h | 35 +++ include/linux/hardirq.h | 5 + include/linux/irqchip/arm-gic-v3.h | 13 + include/linux/sched.h | 4 + include/linux/xcall.h | 17 ++ include/trace/events/xcall.h | 106 +++++++ kernel/fork.c | 22 ++ kernel/irq/debugfs.c | 33 ++ kernel/irq/internals.h | 18 ++ kernel/irq/irqdesc.c | 19 ++ kernel/irq/proc.c | 10 + kernel/softirq.c | 73 +++++ 27 files changed, 1500 insertions(+), 3 deletions(-) create mode 100644 include/linux/xcall.h create mode 100644 include/trace/events/xcall.h -- 2.34.1

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[PATCH OLK-6.6 v2 00/12] CVE-2025-37948
by Pu Lehui 10 Jun '25

10 Jun '25

Douglas Anderson (5): arm64: errata: Add QCOM_KRYO_4XX_GOLD to the spectre_bhb_k24_list arm64: errata: Assume that unknown CPUs _are_ vulnerable to Spectre BHB arm64: errata: Add KRYO 2XX/3XX/4XX silver cores to Spectre BHB safe list arm64: cputype: Add MIDR_CORTEX_A76AE arm64: errata: Add newer ARM cores to the spectre_bhb_loop_affected() lists James Morse (6): arm64: insn: Add support for encoding DSB arm64: proton-pack: Expose whether the platform is mitigated by firmware arm64: proton-pack: Expose whether the branchy loop k value arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users arm64: proton-pack: Add new CPUs 'k' values for branch mitigation Will Deacon (1): arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays arch/arm64/include/asm/cputype.h | 4 + arch/arm64/include/asm/insn.h | 1 + arch/arm64/include/asm/spectre.h | 4 +- arch/arm64/kernel/proton-pack.c | 231 ++++++++++++++++++------------- arch/arm64/lib/insn.c | 60 +++++--- arch/arm64/net/bpf_jit_comp.c | 57 +++++++- 6 files changed, 229 insertions(+), 128 deletions(-) -- 2.34.1

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