August 2024 - Kernel - mailweb.openeuler.org

[openeuler:openEuler-1.0-LTS] BUILD SUCCESS c75f813072b1d42cc638d175e1a8e84835f383ee
by kernel test robot 16 Aug '24

16 Aug '24

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: c75f813072b1d42cc638d175e1a8e84835f383ee !10894 v2 netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers elapsed time: 725m configs tested: 34 configs skipped: 111 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig gcc-14.1.0 arm64 allnoconfig gcc-14.1.0 arm64 randconfig-001-20240815 gcc-14.1.0 arm64 randconfig-002-20240815 gcc-14.1.0 arm64 randconfig-003-20240815 gcc-14.1.0 arm64 randconfig-004-20240815 gcc-14.1.0 x86_64 allnoconfig clang-18 x86_64 allyesconfig clang-18 x86_64 buildonly-randconfig-001-20240815 gcc-12 x86_64 buildonly-randconfig-002-20240815 gcc-11 x86_64 buildonly-randconfig-003-20240815 clang-18 x86_64 buildonly-randconfig-004-20240815 gcc-12 x86_64 buildonly-randconfig-005-20240815 gcc-12 x86_64 buildonly-randconfig-006-20240815 gcc-12 x86_64 defconfig gcc-11 x86_64 randconfig-001-20240815 clang-18 x86_64 randconfig-002-20240815 gcc-12 x86_64 randconfig-003-20240815 clang-18 x86_64 randconfig-004-20240815 gcc-12 x86_64 randconfig-005-20240815 clang-18 x86_64 randconfig-006-20240815 gcc-12 x86_64 randconfig-011-20240815 clang-18 x86_64 randconfig-012-20240815 gcc-12 x86_64 randconfig-013-20240815 gcc-12 x86_64 randconfig-014-20240815 gcc-12 x86_64 randconfig-015-20240815 gcc-12 x86_64 randconfig-016-20240815 clang-18 x86_64 randconfig-071-20240815 clang-18 x86_64 randconfig-072-20240815 gcc-12 x86_64 randconfig-073-20240815 clang-18 x86_64 randconfig-074-20240815 gcc-12 x86_64 randconfig-075-20240815 clang-18 x86_64 randconfig-076-20240815 gcc-12 x86_64 rhel-8.3-rust clang-18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10] BUILD SUCCESS b64d0f05092bd809e3e1b4333f18efc42480f452
by kernel test robot 16 Aug '24

16 Aug '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: b64d0f05092bd809e3e1b4333f18efc42480f452 !10846 netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers elapsed time: 731m configs tested: 34 configs skipped: 111 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig clang-20 arm64 allnoconfig gcc-14.1.0 arm64 randconfig-001-20240815 clang-16 arm64 randconfig-002-20240815 clang-17 arm64 randconfig-003-20240815 clang-20 arm64 randconfig-004-20240815 clang-20 x86_64 allnoconfig clang-18 x86_64 allyesconfig clang-18 x86_64 buildonly-randconfig-001-20240815 gcc-12 x86_64 buildonly-randconfig-002-20240815 gcc-11 x86_64 buildonly-randconfig-003-20240815 clang-18 x86_64 buildonly-randconfig-004-20240815 gcc-12 x86_64 buildonly-randconfig-005-20240815 gcc-12 x86_64 buildonly-randconfig-006-20240815 gcc-12 x86_64 defconfig gcc-11 x86_64 randconfig-001-20240815 clang-18 x86_64 randconfig-002-20240815 gcc-12 x86_64 randconfig-003-20240815 clang-18 x86_64 randconfig-004-20240815 gcc-12 x86_64 randconfig-005-20240815 clang-18 x86_64 randconfig-006-20240815 gcc-12 x86_64 randconfig-011-20240815 clang-18 x86_64 randconfig-012-20240815 gcc-12 x86_64 randconfig-013-20240815 gcc-12 x86_64 randconfig-014-20240815 gcc-12 x86_64 randconfig-015-20240815 gcc-12 x86_64 randconfig-016-20240815 clang-18 x86_64 randconfig-071-20240815 clang-18 x86_64 randconfig-072-20240815 gcc-12 x86_64 randconfig-073-20240815 clang-18 x86_64 randconfig-074-20240815 gcc-12 x86_64 randconfig-075-20240815 clang-18 x86_64 randconfig-076-20240815 gcc-12 x86_64 rhel-8.3-rust clang-18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-5.10 0/2] Fix CVE-2024-40966
by Yi Yang 15 Aug '24

15 Aug '24

Fix CVE-2024-40966 for OLK-5.10 Linus Torvalds (1): tty: add the option to have a tty reject a new ldisc Yi Yang (1): tty: vt device use only n_tty ldisc drivers/tty/tty_ldisc.c | 10 ++++++++++ 1 file changed, 10 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 0/2] Fix CVE-2024-40966
by Yi Yang 15 Aug '24

15 Aug '24

Fix CVE-2024-40966 for OLK-6.6 Linus Torvalds (1): tty: add the option to have a tty reject a new ldisc Yi Yang (1): tty: fix kabi breakage in struct tty_operations drivers/tty/tty_ldisc.c | 6 ++++++ drivers/tty/vt/vt.c | 10 ++++++++++ include/linux/tty_driver.h | 9 ++++++++- 3 files changed, 24 insertions(+), 1 deletion(-) -- 2.25.1

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[PATCH openEuler-22.03-LTS-SP1 0/2] Fix CVE-2024-40966
by Yi Yang 15 Aug '24

15 Aug '24

Fix CVE-2024-40966 for openEuler-22.03-LTS-SP1 Linus Torvalds (1): tty: add the option to have a tty reject a new ldisc Yi Yang (1): tty: vt device use only n_tty ldisc drivers/tty/tty_ldisc.c | 10 ++++++++++ 1 file changed, 10 insertions(+) -- 2.25.1

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[PATCH openEuler-22.03-LTS-SP1 0/2] Fix CVE-2024-40966
by Yi Yang 15 Aug '24

15 Aug '24

Fix CVE-2024-40966 for openEuler-22.03-LTS-SP1 Linus Torvalds (1): tty: add the option to have a tty reject a new ldisc Yi Yang (1): tty: vt device use only n_tty ldisc drivers/tty/tty_ldisc.c | 10 ++++++++++ 1 file changed, 10 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 0/2] Fix CVE-2024-40966
by Yi Yang 15 Aug '24

15 Aug '24

Fix CVE-2024-40966 for OLK-6.6 Linus Torvalds (1): tty: add the option to have a tty reject a new ldisc Yi Yang (1): tty: fix kabi breakage in struct tty_operations drivers/tty/tty_ldisc.c | 6 ++++++ drivers/tty/vt/vt.c | 10 ++++++++++ include/linux/tty_driver.h | 9 ++++++++- 3 files changed, 24 insertions(+), 1 deletion(-) -- 2.25.1

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[PATCH v2 OLK-6.6] perf/x86: Fix smp_processor_id()-in-preemptible warnings
by Li Huafei 15 Aug '24

15 Aug '24

mainline inclusion from mainline-v6.11-rc2 commit f73cefa3b72eaa90abfc43bf6d68137ba059d4b1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAKACM Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The following bug was triggered on a system built with CONFIG_DEBUG_PREEMPT=y: # echo p > /proc/sysrq-trigger BUG: using smp_processor_id() in preemptible [00000000] code: sh/117 caller is perf_event_print_debug+0x1a/0x4c0 CPU: 3 UID: 0 PID: 117 Comm: sh Not tainted 6.11.0-rc1 #109 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x4f/0x60 check_preemption_disabled+0xc8/0xd0 perf_event_print_debug+0x1a/0x4c0 __handle_sysrq+0x140/0x180 write_sysrq_trigger+0x61/0x70 proc_reg_write+0x4e/0x70 vfs_write+0xd0/0x430 ? handle_mm_fault+0xc8/0x240 ksys_write+0x9c/0xd0 do_syscall_64+0x96/0x190 entry_SYSCALL_64_after_hwframe+0x4b/0x53 This is because the commit d4b294bf84db ("perf/x86: Hybrid PMU support for counters") took smp_processor_id() outside the irq critical section. If a preemption occurs in perf_event_print_debug() and the task is migrated to another cpu, we may get incorrect pmu debug information. Move smp_processor_id() back inside the irq critical section to fix this issue. Fixes: d4b294bf84db ("perf/x86: Hybrid PMU support for counters") Signed-off-by: Li Huafei <lihuafei1(a)huawei.com> Reviewed-and-tested-by: K Prateek Nayak <kprateek.nayak(a)amd.com> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Reviewed-by: Kan Liang <kan.liang(a)linux.intel.com> Link: https://lore.kernel.org/r/20240729220928.325449-1-lihuafei1@huawei.com Conflicts: arch/x86/events/core.c [ Resolve context conflict caused by 722e42e45c2f(“perf/x86: Support counter mask”) not backported. ] Signed-off-by: Li Huafei <lihuafei1(a)huawei.com> --- arch/x86/events/core.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index fc436fbb053f..b07ce3ee2199 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -1520,18 +1520,21 @@ void perf_event_print_debug(void) { u64 ctrl, status, overflow, pmc_ctrl, pmc_count, prev_left, fixed; u64 pebs, debugctl; - int cpu = smp_processor_id(); - struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); - int num_counters = hybrid(cpuc->pmu, num_counters); - int num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed); - struct event_constraint *pebs_constraints = hybrid(cpuc->pmu, pebs_constraints); - unsigned long flags; - int idx; + struct cpu_hw_events *cpuc; + struct event_constraint *pebs_constraints; + int num_counters, num_counters_fixed, cpu, idx; + + guard(irqsave)(); + + cpu = smp_processor_id(); + cpuc = &per_cpu(cpu_hw_events, cpu); + num_counters = hybrid(cpuc->pmu, num_counters); + num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed); + pebs_constraints = hybrid(cpuc->pmu, pebs_constraints); if (!num_counters) return; - local_irq_save(flags); if (x86_pmu.version >= 2) { rdmsrl(MSR_CORE_PERF_GLOBAL_CTRL, ctrl); @@ -1576,7 +1579,6 @@ void perf_event_print_debug(void) pr_info("CPU#%d: fixed-PMC%d count: %016llx\n", cpu, idx, pmc_count); } - local_irq_restore(flags); } void x86_pmu_stop(struct perf_event *event, int flags) -- 2.25.1

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[PATCH OLK-6.6] perf/x86: Fix smp_processor_id()-in-preemptible warnings
by Li Huafei 15 Aug '24

15 Aug '24

mainline inclusion from mainline-v6.11-rc2 commit f73cefa3b72eaa90abfc43bf6d68137ba059d4b1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAKACM Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The following bug was triggered on a system built with CONFIG_DEBUG_PREEMPT=y: # echo p > /proc/sysrq-trigger BUG: using smp_processor_id() in preemptible [00000000] code: sh/117 caller is perf_event_print_debug+0x1a/0x4c0 CPU: 3 UID: 0 PID: 117 Comm: sh Not tainted 6.11.0-rc1 #109 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x4f/0x60 check_preemption_disabled+0xc8/0xd0 perf_event_print_debug+0x1a/0x4c0 __handle_sysrq+0x140/0x180 write_sysrq_trigger+0x61/0x70 proc_reg_write+0x4e/0x70 vfs_write+0xd0/0x430 ? handle_mm_fault+0xc8/0x240 ksys_write+0x9c/0xd0 do_syscall_64+0x96/0x190 entry_SYSCALL_64_after_hwframe+0x4b/0x53 This is because the commit d4b294bf84db ("perf/x86: Hybrid PMU support for counters") took smp_processor_id() outside the irq critical section. If a preemption occurs in perf_event_print_debug() and the task is migrated to another cpu, we may get incorrect pmu debug information. Move smp_processor_id() back inside the irq critical section to fix this issue. Fixes: d4b294bf84db ("perf/x86: Hybrid PMU support for counters") Signed-off-by: Li Huafei <lihuafei1(a)huawei.com> Reviewed-and-tested-by: K Prateek Nayak <kprateek.nayak(a)amd.com> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Reviewed-by: Kan Liang <kan.liang(a)linux.intel.com> Link: https://lore.kernel.org/r/20240729220928.325449-1-lihuafei1@huawei.com Conflicts: arch/x86/events/core.c [ Resolve context conflict caused by 722e42e45c2f(“perf/x86: Support counter mask”) not backported. ] --- arch/x86/events/core.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index fc436fbb053f..b07ce3ee2199 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -1520,18 +1520,21 @@ void perf_event_print_debug(void) { u64 ctrl, status, overflow, pmc_ctrl, pmc_count, prev_left, fixed; u64 pebs, debugctl; - int cpu = smp_processor_id(); - struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); - int num_counters = hybrid(cpuc->pmu, num_counters); - int num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed); - struct event_constraint *pebs_constraints = hybrid(cpuc->pmu, pebs_constraints); - unsigned long flags; - int idx; + struct cpu_hw_events *cpuc; + struct event_constraint *pebs_constraints; + int num_counters, num_counters_fixed, cpu, idx; + + guard(irqsave)(); + + cpu = smp_processor_id(); + cpuc = &per_cpu(cpu_hw_events, cpu); + num_counters = hybrid(cpuc->pmu, num_counters); + num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed); + pebs_constraints = hybrid(cpuc->pmu, pebs_constraints); if (!num_counters) return; - local_irq_save(flags); if (x86_pmu.version >= 2) { rdmsrl(MSR_CORE_PERF_GLOBAL_CTRL, ctrl); @@ -1576,7 +1579,6 @@ void perf_event_print_debug(void) pr_info("CPU#%d: fixed-PMC%d count: %016llx\n", cpu, idx, pmc_count); } - local_irq_restore(flags); } void x86_pmu_stop(struct perf_event *event, int flags) -- 2.25.1

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[PATCH OLK-6.6 0/2] Fix CVE-2024-40966
by Yi Yang 15 Aug '24

15 Aug '24

Fix CVE-2024-40966 for OLK-6.6 Linus Torvalds (1): tty: add the option to have a tty reject a new ldisc Yi Yang (1): tty: fix kabi breakage in struct tty_operations drivers/tty/tty_ldisc.c | 6 ++++++ drivers/tty/vt/vt.c | 10 ++++++++++ include/linux/tty_driver.h | 9 ++++++++- 3 files changed, 24 insertions(+), 1 deletion(-) -- 2.25.1

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