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[PATCH openEuler-1.0-LTS 0/2] media: usb: siano: Fix CVE-2023-4132
by Ruan Jinjie 07 Aug '23

07 Aug '23

Backport CVE-2023-4132 fix commits. Duoming Zhou (2): media: usb: siano: Fix use after free bugs caused by do_submit_urb media: usb: siano: Fix warning due to null work_func_t function pointer drivers/media/usb/siano/smsusb.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.34.1

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[PATCH openEuler-23.09 0/8] arm64: Add framework to turn an IPI as NMI
by Ruan Jinjie 07 Aug '23

07 Aug '23

arm64: Add framework to turn an IPI as NMI Sumit Garg (7): arm64: Add framework to turn IPI as NMI irqchip/gic-v3: Enable support for SGIs to act as NMIs arm64: smp: Assign and setup an IPI as NMI nmi: backtrace: Allow runtime arch specific override arm64: ipi_nmi: Add support for NMI backtrace kgdb: Expose default CPUs roundup fallback mechanism arm64: kgdb: Roundup cpus using IPI as NMI Xiongfeng Wang (1): arm64: ipi_nmi: fix compile error when CONFIG_KGDB is disabled arch/arm/include/asm/irq.h | 2 +- arch/arm/kernel/smp.c | 3 +- arch/arm64/include/asm/irq.h | 6 +++ arch/arm64/include/asm/nmi.h | 17 +++++++ arch/arm64/kernel/Makefile | 2 +- arch/arm64/kernel/ipi_nmi.c | 85 ++++++++++++++++++++++++++++++++ arch/arm64/kernel/kgdb.c | 18 +++++++ arch/arm64/kernel/smp.c | 8 +++ arch/mips/include/asm/irq.h | 2 +- arch/mips/kernel/process.c | 3 +- arch/powerpc/include/asm/nmi.h | 2 +- arch/powerpc/kernel/stacktrace.c | 3 +- arch/sparc/include/asm/irq_64.h | 2 +- arch/sparc/kernel/process_64.c | 4 +- arch/x86/include/asm/irq.h | 2 +- arch/x86/kernel/apic/hw_nmi.c | 3 +- drivers/irqchip/irq-gic-v3.c | 29 ++++++++--- include/linux/kgdb.h | 12 +++++ include/linux/nmi.h | 12 ++--- kernel/debug/debug_core.c | 8 ++- 20 files changed, 195 insertions(+), 28 deletions(-) create mode 100644 arch/arm64/include/asm/nmi.h create mode 100644 arch/arm64/kernel/ipi_nmi.c -- 2.34.1

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[PATCH openEuler-1.0-LTS 0/2] media: usb: siano: Fix CVE-2023-4132
by Ruan Jinjie 07 Aug '23

07 Aug '23

Backport CVE-2023-4132 fix commits. Duoming Zhou (2): media: usb: siano: Fix use after free bugs caused by do_submit_urb media: usb: siano: Fix warning due to null work_func_t function pointer drivers/media/usb/siano/smsusb.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.34.1

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[PATCH OLK-5.10 0/2] media: usb: siano: Fix CVE-2023-4132
by Ruan Jinjie 07 Aug '23

07 Aug '23

Backport CVE-2023-4132 fix commits. Duoming Zhou (2): media: usb: siano: Fix use after free bugs caused by do_submit_urb media: usb: siano: Fix warning due to null work_func_t function pointer drivers/media/usb/siano/smsusb.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.34.1

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[PATCH openEuler-1.0-LTS] can: bcm: Fix UAF in bcm_proc_show()
by Dong Chenchen 07 Aug '23

07 Aug '23

From: YueHaibing <yuehaibing(a)huawei.com> mainline inclusion from mainline-v6.5-rc1 commit 55c3b96074f3f9b0aee19bf93cd71af7516582bb category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7R1N4 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- BUG: KASAN: slab-use-after-free in bcm_proc_show+0x969/0xa80 Read of size 8 at addr ffff888155846230 by task cat/7862 CPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 #230 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0xd5/0x150 print_report+0xc1/0x5e0 kasan_report+0xba/0xf0 bcm_proc_show+0x969/0xa80 seq_read_iter+0x4f6/0x1260 seq_read+0x165/0x210 proc_reg_read+0x227/0x300 vfs_read+0x1d5/0x8d0 ksys_read+0x11e/0x240 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Allocated by task 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x9e/0xa0 bcm_sendmsg+0x264b/0x44e0 sock_sendmsg+0xda/0x180 ____sys_sendmsg+0x735/0x920 ___sys_sendmsg+0x11d/0x1b0 __sys_sendmsg+0xfa/0x1d0 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x27/0x40 ____kasan_slab_free+0x161/0x1c0 slab_free_freelist_hook+0x119/0x220 __kmem_cache_free+0xb4/0x2e0 rcu_core+0x809/0x1bd0 bcm_op is freed before procfs entry be removed in bcm_release(), this lead to bcm_proc_show() may read the freed bcm_op. Fixes: ffd980f976e7 ("[CAN]: Add broadcast manager (bcm) protocol") Signed-off-by: YueHaibing <yuehaibing(a)huawei.com> Reviewed-by: Oliver Hartkopp <socketcan(a)hartkopp.net> Acked-by: Oliver Hartkopp <socketcan(a)hartkopp.net> Link: https://lore.kernel.org/all/20230715092543.15548-1-yuehaibing@huawei.com Cc: stable(a)vger.kernel.org Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de> Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- net/can/bcm.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/net/can/bcm.c b/net/can/bcm.c index f0af3861c959..a78d4ddd615a 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1506,6 +1506,12 @@ static int bcm_release(struct socket *sock) lock_sock(sk); +#if IS_ENABLED(CONFIG_PROC_FS) + /* remove procfs entry */ + if (net->can.bcmproc_dir && bo->bcm_proc_read) + remove_proc_entry(bo->procname, net->can.bcmproc_dir); +#endif /* CONFIG_PROC_FS */ + list_for_each_entry_safe(op, next, &bo->tx_ops, list) bcm_remove_op(op); @@ -1541,12 +1547,6 @@ static int bcm_release(struct socket *sock) list_for_each_entry_safe(op, next, &bo->rx_ops, list) bcm_remove_op(op); -#if IS_ENABLED(CONFIG_PROC_FS) - /* remove procfs entry */ - if (net->can.bcmproc_dir && bo->bcm_proc_read) - remove_proc_entry(bo->procname, net->can.bcmproc_dir); -#endif /* CONFIG_PROC_FS */ - /* remove device reference */ if (bo->bound) { bo->bound = 0; -- 2.25.1

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[PATCH openEuler-22.03-LTS] Revert "arm64/mpam: Fix mpam corrupt when cpu online"
by Wang ShaoBo 07 Aug '23

07 Aug '23

hulk inclusion category: bugfix bugzilla: 189067, https://gitee.com/openeuler/kernel/issues/I7PN0A CVE: NA ------------------------------------------------- BUG 'sleeping function called from invalid context' reported when setup MPAM driver, it was blamed to bc9e3f9895ef2 ("arm64/mpam: Fix mpam corrupt when cpu online"), which reported a 'Bad PC' BUG, but missing the right conclusion, finally disabling irqs before calling cpuhp_setup_state() may only affect the probability of reproduction. The reason why triggerring 'Bad PC' BUG report is because mpam_enable() is __init type function, and may schedule out after calling __cpuhp_setup_state()->__might_sleep(), so the space of mpam_enable() might be freed after scheduling back. As we have changed mpam_enable() to non-init type function, we can revert commit bc9e3f9895ef2 directly, to solve these both two problems. Fixes: bc9e3f9895ef2 ("arm64/mpam: Fix mpam corrupt when cpu online") Signed-off-by: Wang ShaoBo <bobo.shaobowang(a)huawei.com> --- arch/arm64/kernel/mpam/mpam_device.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm64/kernel/mpam/mpam_device.c b/arch/arm64/kernel/mpam/mpam_device.c index c59f7f09308dc..bb88db115a86c 100644 --- a/arch/arm64/kernel/mpam/mpam_device.c +++ b/arch/arm64/kernel/mpam/mpam_device.c @@ -596,11 +596,9 @@ static void mpam_enable(struct work_struct *work) pr_err("Failed to setup/init resctrl\n"); mutex_unlock(&mpam_devices_lock); - local_irq_disable(); mpam_cpuhp_state = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "mpam:online", mpam_cpu_online, mpam_cpu_offline); - local_irq_enable(); if (mpam_cpuhp_state <= 0) pr_err("Failed to re-register 'dyn' cpuhp callbacks"); mutex_unlock(&mpam_cpuhp_lock); -- 2.25.1

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[PATCH openEuler-1.0-LTS 0/2] media: usb: siano: Fix CVE-2023-4132
by Ruan Jinjie 07 Aug '23

07 Aug '23

Backport CVE-2023-4132 fix commits. Duoming Zhou (2): media: usb: siano: Fix use after free bugs caused by do_submit_urb media: usb: siano: Fix warning due to null work_func_t function pointer drivers/media/usb/siano/smsusb.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.34.1

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[PATCH openEuler-22.03-LTS 0/2] media: usb: siano: Fix CVE-2023-4132
by Ruan Jinjie 07 Aug '23

07 Aug '23

Backport CVE-2023-4132 fix commits. Duoming Zhou (2): media: usb: siano: Fix use after free bugs caused by do_submit_urb media: usb: siano: Fix warning due to null work_func_t function pointer drivers/media/usb/siano/smsusb.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.34.1

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【开发过程疑问】
by Hu, Yong 07 Aug '23

07 Aug '23

问题描述： x86服务器上安装openEuler 22.03-LTS官方发布的ISO后运行oech测试，kabi及system测试通过。而基于openEuler官方gitee仓库中的openEuler-22.03-LTS分支升级kernel镜像后，运行oech测试中kabi测试失败。我们的疑问： 1. 为什么使用官方代码升级kernel后oech测试中的kabi测试会失败？ 2. oech中kabi测试项的测试原理是什么？ 3. 如何定位和解决kabi测试失败的问题？期待社区的回复和解答谢谢！

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[PATCH openEuler-1.0-LTS] x86/apic: Fix kernel panic when booting with intremap=off and x2apic_phys
by Lin Yujun 07 Aug '23

07 Aug '23

From: Dheeraj Kumar Srivastava <dheerajkumar.srivastava(a)amd.com> stable inclusion from stable-v4.19.288 commit 6f639f6ad1796d291f5e0ea4bd5a47968c9c1f81 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7R0M9 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 85d38d5810e285d5aec7fb5283107d1da70c12a9 ] When booting with "intremap=off" and "x2apic_phys" on the kernel command line, the physical x2APIC driver ends up being used even when x2APIC mode is disabled ("intremap=off" disables x2APIC mode). This happens because the first compound condition check in x2apic_phys_probe() is false due to x2apic_mode == 0 and so the following one returns true after default_acpi_madt_oem_check() having already selected the physical x2APIC driver. This results in the following panic: kernel BUG at arch/x86/kernel/apic/io_apic.c:2409! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-rc2-ver4.1rc2 #2 Hardware name: Dell Inc. PowerEdge R6515/07PXPY, BIOS 2.3.6 07/06/2021 RIP: 0010:setup_IO_APIC+0x9c/0xaf0 Call Trace: <TASK> ? native_read_msr apic_intr_mode_init x86_late_time_init start_kernel x86_64_start_reservations x86_64_start_kernel secondary_startup_64_no_verify </TASK> which is: setup_IO_APIC: apic_printk(APIC_VERBOSE, "ENABLING IO-APIC IRQs\n"); for_each_ioapic(ioapic) BUG_ON(mp_irqdomain_create(ioapic)); Return 0 to denote that x2APIC has not been enabled when probing the physical x2APIC driver. [ bp: Massage commit message heavily. ] Fixes: 9ebd680bd029 ("x86, apic: Use probe routines to simplify apic selection") Signed-off-by: Dheeraj Kumar Srivastava <dheerajkumar.srivastava(a)amd.com> Signed-off-by: Borislav Petkov (AMD) <bp(a)alien8.de> Reviewed-by: Kishon Vijay Abraham I <kvijayab(a)amd.com> Reviewed-by: Vasant Hegde <vasant.hegde(a)amd.com> Reviewed-by: Cyrill Gorcunov <gorcunov(a)gmail.com> Reviewed-by: Thomas Gleixner <tglx(a)linutronix.de> Link: https://lore.kernel.org/r/20230616212236.1389-1-dheerajkumar.srivastava@amd… Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Lin Yujun <linyujun809(a)huawei.com> --- arch/x86/kernel/apic/x2apic_phys.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index b5cf9e7b3830..78790c4bfdeb 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -94,7 +94,10 @@ static void init_x2apic_ldr(void) static int x2apic_phys_probe(void) { - if (x2apic_mode && (x2apic_phys || x2apic_fadt_phys())) + if (!x2apic_mode) + return 0; + + if (x2apic_phys || x2apic_fadt_phys()) return 1; return apic == &apic_x2apic_phys; -- 2.34.1

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