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[PATCH v3 OLK-6.6] livepatch: support for super-long symbol repositioning
by Li Huafei 04 Aug '25

04 Aug '25

From: caixiaomeng 00662745 <caixiaomeng2(a)huawei.com> EulerOS inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/ICPM0M ---------------------------------------- symbols longer than KSYM_NAME_LEN will be truncated in strtab, we can not find them using original name, so we use a new format .klp.sym.objname-ref_name,ref_offset to find a unique symbol and add ref_offset to get the long name symbol address. Signed-off-by: Zhipeng Xie <xiezhipeng1(a)huawei.com> Signed-off-by: caixiaomeng <caixiaomeng2(a)huawei.com> Signed-off-by: hubin <hubin73(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + kernel/livepatch/Kconfig | 10 ++++++++++ kernel/livepatch/core.c | 12 ++++++++++++ 4 files changed, 24 insertions(+) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 3cfff0701479..627fc381a0e4 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -377,6 +377,7 @@ CONFIG_LIVEPATCH_STOP_MACHINE_CONSISTENCY=y # CONFIG_LIVEPATCH_STACK is not set CONFIG_LIVEPATCH_RESTRICT_KPROBE=y CONFIG_LIVEPATCH_ISOLATE_KPROBE=y +CONFIG_LIVEPATCH_LONG_SYMBOL_SUPPORT=y # end of Enable Livepatch # diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index 3cbae4c5f390..52e6ccad8aa8 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -538,6 +538,7 @@ CONFIG_LIVEPATCH_STOP_MACHINE_CONSISTENCY=y # CONFIG_LIVEPATCH_STACK is not set CONFIG_LIVEPATCH_RESTRICT_KPROBE=y CONFIG_LIVEPATCH_ISOLATE_KPROBE=y +CONFIG_LIVEPATCH_LONG_SYMBOL_SUPPORT=y # end of Enable Livepatch # end of Processor type and features diff --git a/kernel/livepatch/Kconfig b/kernel/livepatch/Kconfig index 239480682c92..d663ad91c619 100644 --- a/kernel/livepatch/Kconfig +++ b/kernel/livepatch/Kconfig @@ -101,4 +101,14 @@ config LIVEPATCH_ISOLATE_KPROBE do not allow both modify the same instruction when a function is marked as 'notrace' and without the reserved instructions. +config LIVEPATCH_LONG_SYMBOL_SUPPORT + bool "support relocate symbol name whose length longer than 128 bytes" + depends on LIVEPATCH_WO_FTRACE + default y + help + symbols longer than KSYM_NAME_LEN will be truncated in strtab, + we can not find them using original name, so we use a new format + .klp.sym.objname-ref_name,ref_offset to find a unique symbol + and add ref_offset to get the long name symbol address. + endmenu diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index bb7ecc516b4a..bc390975fd2c 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -233,6 +233,7 @@ static int klp_resolve_symbols(Elf_Shdr *sechdrs, const char *strtab, #endif Elf_Sym *sym; unsigned long sympos, addr; + long ref_offset; bool sym_vmlinux; bool sec_vmlinux = !strcmp(sec_objname, "vmlinux"); @@ -266,10 +267,19 @@ static int klp_resolve_symbols(Elf_Shdr *sechdrs, const char *strtab, return -EINVAL; } + ref_offset = 0; /* Format: .klp.sym.sym_objname.sym_name,sympos */ cnt = sscanf(strtab + sym->st_name, ".klp.sym.%55[^.].%511[^,],%lu", sym_objname, sym_name, &sympos); + if (IS_ENABLED(CONFIG_LIVEPATCH_LONG_SYMBOL_SUPPORT) && cnt != 3) { + /* Format: .klp.sym.objname-ref_name,ref_offset*/ + cnt = sscanf(strtab + sym->st_name, + ".klp.sym.%55[^-]-%127[^,],%ld", + sym_objname, sym_name, &ref_offset); + if (cnt == 3) + sympos = 1; + } if (cnt != 3) { pr_err("symbol %s has an incorrectly formatted name\n", strtab + sym->st_name); @@ -297,6 +307,8 @@ static int klp_resolve_symbols(Elf_Shdr *sechdrs, const char *strtab, return ret; sym->st_value = addr; + if (IS_ENABLED(CONFIG_LIVEPATCH_LONG_SYMBOL_SUPPORT)) + sym->st_value += ref_offset; } return 0; -- 2.43.0

2 1

[PATCH OLK-6.6 0/2] CVE-2025-37957
by Yuan Can 04 Aug '25

04 Aug '25

Mikhail Lobanov (1): KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception Peter Gonda (1): KVM: SVM: Update SEV-ES shutdown intercepts with more metadata arch/x86/kvm/smm.c | 1 + arch/x86/kvm/svm/svm.c | 19 +++++++++++-------- 2 files changed, 12 insertions(+), 8 deletions(-) -- 2.22.0

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[PATCH OLK-5.10] drm/v3d: Disable interrupts before resetting the GPU
by Xiaomeng Zhang 04 Aug '25

04 Aug '25

From: Maíra Canal <mcanal(a)igalia.com> stable inclusion from stable-v5.10.240 commit 226862f50a7a88e4e4de9abbf36c64d19acd6fd0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICOXDY CVE: CVE-2025-38371 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/k… -------------------------------- [ Upstream commit 226862f50a7a88e4e4de9abbf36c64d19acd6fd0 ] Currently, an interrupt can be triggered during a GPU reset, which can lead to GPU hangs and NULL pointer dereference in an interrupt context as shown in the following trace: [ 314.035040] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000c0 [ 314.043822] Mem abort info: [ 314.046606] ESR = 0x0000000096000005 [ 314.050347] EC = 0x25: DABT (current EL), IL = 32 bits [ 314.055651] SET = 0, FnV = 0 [ 314.058695] EA = 0, S1PTW = 0 [ 314.061826] FSC = 0x05: level 1 translation fault [ 314.066694] Data abort info: [ 314.069564] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 314.075039] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 314.080080] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 314.085382] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000102728000 [ 314.091814] [00000000000000c0] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 314.100511] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP [ 314.106770] Modules linked in: v3d i2c_brcmstb vc4 snd_soc_hdmi_codec gpu_sched drm_shmem_helper drm_display_helper cec drm_dma_helper drm_kms_helper drm drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd backlight [ 314.129654] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.25+rpt-rpi-v8 #1 Debian 1:6.12.25-1+rpt1 [ 314.139388] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT) [ 314.145211] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 314.152165] pc : v3d_irq+0xec/0x2e0 [v3d] [ 314.156187] lr : v3d_irq+0xe0/0x2e0 [v3d] [ 314.160198] sp : ffffffc080003ea0 [ 314.163502] x29: ffffffc080003ea0 x28: ffffffec1f184980 x27: 021202b000000000 [ 314.170633] x26: ffffffec1f17f630 x25: ffffff8101372000 x24: ffffffec1f17d9f0 [ 314.177764] x23: 000000000000002a x22: 000000000000002a x21: ffffff8103252000 [ 314.184895] x20: 0000000000000001 x19: 00000000deadbeef x18: 0000000000000000 [ 314.192026] x17: ffffff94e51d2000 x16: ffffffec1dac3cb0 x15: c306000000000000 [ 314.199156] x14: 0000000000000000 x13: b2fc982e03cc5168 x12: 0000000000000001 [ 314.206286] x11: ffffff8103f8bcc0 x10: ffffffec1f196868 x9 : ffffffec1dac3874 [ 314.213416] x8 : 0000000000000000 x7 : 0000000000042a3a x6 : ffffff810017a180 [ 314.220547] x5 : ffffffec1ebad400 x4 : ffffffec1ebad320 x3 : 00000000000bebeb [ 314.227677] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [ 314.234807] Call trace: [ 314.237243] v3d_irq+0xec/0x2e0 [v3d] [ 314.240906] __handle_irq_event_percpu+0x58/0x218 [ 314.245609] handle_irq_event+0x54/0xb8 [ 314.249439] handle_fasteoi_irq+0xac/0x240 [ 314.253527] handle_irq_desc+0x48/0x68 [ 314.257269] generic_handle_domain_irq+0x24/0x38 [ 314.261879] gic_handle_irq+0x48/0xd8 [ 314.265533] call_on_irq_stack+0x24/0x58 [ 314.269448] do_interrupt_handler+0x88/0x98 [ 314.273624] el1_interrupt+0x34/0x68 [ 314.277193] el1h_64_irq_handler+0x18/0x28 [ 314.281281] el1h_64_irq+0x64/0x68 [ 314.284673] default_idle_call+0x3c/0x168 [ 314.288675] do_idle+0x1fc/0x230 [ 314.291895] cpu_startup_entry+0x3c/0x50 [ 314.295810] rest_init+0xe4/0xf0 [ 314.299030] start_kernel+0x5e8/0x790 [ 314.302684] __primary_switched+0x80/0x90 [ 314.306691] Code: 940029eb 360ffc13 f9442ea0 52800001 (f9406017) [ 314.312775] ---[ end trace 0000000000000000 ]--- [ 314.317384] Kernel panic - not syncing: Oops: Fatal exception in interrupt [ 314.324249] SMP: stopping secondary CPUs [ 314.328167] Kernel Offset: 0x2b9da00000 from 0xffffffc080000000 [ 314.334076] PHYS_OFFSET: 0x0 [ 314.336946] CPU features: 0x08,00002013,c0200000,0200421b [ 314.342337] Memory Limit: none [ 314.345382] ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]--- Before resetting the GPU, it's necessary to disable all interrupts and deal with any interrupt handler still in-flight. Otherwise, the GPU might reset with jobs still running, or yet, an interrupt could be handled during the reset. Cc: stable(a)vger.kernel.org Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+") Reviewed-by: Juan A. Suarez <jasuarez(a)igalia.com> Reviewed-by: Iago Toral Quiroga <itoral(a)igalia.com> Link: https://lore.kernel.org/r/20250628224243.47599-1-mcanal@igalia.com Signed-off-by: Maíra Canal <mcanal(a)igalia.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/gpu/drm/v3d/v3d_drv.h drivers/gpu/drm/v3d/v3d_gem.c drivers/gpu/drm/v3d/v3d_irq.c [The conflicts were due to some minor issue.] Signed-off-by: Xiaomeng Zhang <zhangxiaomeng13(a)huawei.com> --- drivers/gpu/drm/v3d/v3d_drv.h | 7 +++++++ drivers/gpu/drm/v3d/v3d_gem.c | 2 ++ drivers/gpu/drm/v3d/v3d_irq.c | 38 ++++++++++++++++++++++++++--------- 3 files changed, 37 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 8a390738d65b..a605b31a8224 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -37,6 +37,12 @@ struct v3d_queue_state { u64 emit_seqno; }; +enum v3d_irq { + V3D_CORE_IRQ, + V3D_HUB_IRQ, + V3D_MAX_IRQS, +}; + struct v3d_dev { struct drm_device drm; @@ -46,6 +52,7 @@ struct v3d_dev { int ver; bool single_irq_line; + int irq[V3D_MAX_IRQS]; void __iomem *hub_regs; void __iomem *core_regs[3]; void __iomem *bridge_regs; diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 64fe63c1938f..32cc461937cf 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -120,6 +120,8 @@ v3d_reset(struct v3d_dev *v3d) if (false) v3d_idle_axi(v3d, 0); + v3d_irq_disable(v3d); + v3d_idle_gca(v3d); v3d_reset_v3d(v3d); diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c index c88686489b88..6c233b9e8648 100644 --- a/drivers/gpu/drm/v3d/v3d_irq.c +++ b/drivers/gpu/drm/v3d/v3d_irq.c @@ -206,7 +206,7 @@ v3d_hub_irq(int irq, void *arg) int v3d_irq_init(struct v3d_dev *v3d) { - int irq1, ret, core; + int irq, ret, core; INIT_WORK(&v3d->overflow_mem_work, v3d_overflow_mem_work); @@ -217,17 +217,24 @@ v3d_irq_init(struct v3d_dev *v3d) V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS); - irq1 = platform_get_irq(v3d_to_pdev(v3d), 1); - if (irq1 == -EPROBE_DEFER) - return irq1; - if (irq1 > 0) { - ret = devm_request_irq(v3d->drm.dev, irq1, + irq = platform_get_irq(v3d_to_pdev(v3d), 1); + if (irq == -EPROBE_DEFER) + return irq; + if (irq > 0) { + v3d->irq[V3D_CORE_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ], v3d_irq, IRQF_SHARED, "v3d_core0", v3d); if (ret) goto fail; - ret = devm_request_irq(v3d->drm.dev, - platform_get_irq(v3d_to_pdev(v3d), 0), + + irq = platform_get_irq(v3d_to_pdev(v3d), 0); + if (irq < 0) + return irq; + v3d->irq[V3D_HUB_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_HUB_IRQ], v3d_hub_irq, IRQF_SHARED, "v3d_hub", v3d); if (ret) @@ -235,8 +242,12 @@ v3d_irq_init(struct v3d_dev *v3d) } else { v3d->single_irq_line = true; - ret = devm_request_irq(v3d->drm.dev, - platform_get_irq(v3d_to_pdev(v3d), 0), + irq = platform_get_irq(v3d_to_pdev(v3d), 0); + if (irq < 0) + return irq; + v3d->irq[V3D_CORE_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ], v3d_irq, IRQF_SHARED, "v3d", v3d); if (ret) @@ -271,12 +282,19 @@ void v3d_irq_disable(struct v3d_dev *v3d) { int core; + int i; /* Disable all interrupts. */ for (core = 0; core < v3d->cores; core++) V3D_CORE_WRITE(core, V3D_CTL_INT_MSK_SET, ~0); V3D_WRITE(V3D_HUB_INT_MSK_SET, ~0); + /* Finish any interrupt handler still in flight. */ + for (i = 0; i < V3D_MAX_IRQS; i++) { + if (v3d->irq[i]) + synchronize_irq(v3d->irq[i]); + } + /* Clear any pending interrupts we might have left. */ for (core = 0; core < v3d->cores; core++) V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] usb: net: sierra: check for no status endpoint
by Ziming Du 04 Aug '25

04 Aug '25

From: Oliver Neukum <oneukum(a)suse.com> stable inclusion from stable-v6.1.147 commit 5849980faea1c792d1d5e54fdbf1e69ac0a9bfb9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICPD6S CVE: CVE-2025-38474 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4c4ca3c46167518f8534ed70f6e3b4bf86c4d158 ] The driver checks for having three endpoints and having bulk in and out endpoints, but not that the third endpoint is interrupt input. Rectify the omission. Reported-by: syzbot+3f89ec3d1d0842e95d50(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-usb/686d5a9f.050a0220.1ffab7.0017.GAE@google.… Tested-by: syzbot+3f89ec3d1d0842e95d50(a)syzkaller.appspotmail.com Fixes: eb4fd8cd355c8 ("net/usb: add sierra_net.c driver") Signed-off-by: Oliver Neukum <oneukum(a)suse.com> Link: https://patch.msgid.link/20250714111326.258378-1-oneukum@suse.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziming Du <duziming2(a)huawei.com> --- drivers/net/usb/sierra_net.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c index c43087e066963..f66c84b729a9b 100644 --- a/drivers/net/usb/sierra_net.c +++ b/drivers/net/usb/sierra_net.c @@ -705,6 +705,10 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf) status); return -ENODEV; } + if (!dev->status) { + dev_err(&dev->udev->dev, "No status endpoint found"); + return -ENODEV; + } /* Initialize sierra private data */ priv = kzalloc(sizeof *priv, GFP_KERNEL); if (!priv) -- 2.43.0

2 1

[PACTH OLK-6.6 0/2] arm64: Fix two bugs for hardware xcall/xint
by Jinjie Ruan 04 Aug '25

04 Aug '25

Fix two bugs for hardware xcall/xint. Jinjie Ruan (2): arm64: Fix '__NR_syscalls' undeclared error arm64: Do not enable hardware xcall if actlr_el1 can not set arch/arm64/include/asm/xcall.h | 1 + arch/arm64/kernel/cpufeature.c | 45 ++++++++++++++-------------------- 2 files changed, 19 insertions(+), 27 deletions(-) -- 2.34.1

1 2

[PATCH OLK-5.10] drm/v3d: Disable interrupts before resetting the GPU
by Xiaomeng Zhang 04 Aug '25

04 Aug '25

From: Maíra Canal <mcanal(a)igalia.com> stable inclusion from stable-v5.10.240 commit 226862f50a7a88e4e4de9abbf36c64d19acd6fd0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICOXDY CVE: CVE-2025-38371 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/k… -------------------------------- [ Upstream commit 226862f50a7a88e4e4de9abbf36c64d19acd6fd0 ] Currently, an interrupt can be triggered during a GPU reset, which can lead to GPU hangs and NULL pointer dereference in an interrupt context as shown in the following trace: [ 314.035040] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000c0 [ 314.043822] Mem abort info: [ 314.046606] ESR = 0x0000000096000005 [ 314.050347] EC = 0x25: DABT (current EL), IL = 32 bits [ 314.055651] SET = 0, FnV = 0 [ 314.058695] EA = 0, S1PTW = 0 [ 314.061826] FSC = 0x05: level 1 translation fault [ 314.066694] Data abort info: [ 314.069564] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 314.075039] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 314.080080] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 314.085382] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000102728000 [ 314.091814] [00000000000000c0] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 314.100511] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP [ 314.106770] Modules linked in: v3d i2c_brcmstb vc4 snd_soc_hdmi_codec gpu_sched drm_shmem_helper drm_display_helper cec drm_dma_helper drm_kms_helper drm drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd backlight [ 314.129654] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.25+rpt-rpi-v8 #1 Debian 1:6.12.25-1+rpt1 [ 314.139388] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT) [ 314.145211] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 314.152165] pc : v3d_irq+0xec/0x2e0 [v3d] [ 314.156187] lr : v3d_irq+0xe0/0x2e0 [v3d] [ 314.160198] sp : ffffffc080003ea0 [ 314.163502] x29: ffffffc080003ea0 x28: ffffffec1f184980 x27: 021202b000000000 [ 314.170633] x26: ffffffec1f17f630 x25: ffffff8101372000 x24: ffffffec1f17d9f0 [ 314.177764] x23: 000000000000002a x22: 000000000000002a x21: ffffff8103252000 [ 314.184895] x20: 0000000000000001 x19: 00000000deadbeef x18: 0000000000000000 [ 314.192026] x17: ffffff94e51d2000 x16: ffffffec1dac3cb0 x15: c306000000000000 [ 314.199156] x14: 0000000000000000 x13: b2fc982e03cc5168 x12: 0000000000000001 [ 314.206286] x11: ffffff8103f8bcc0 x10: ffffffec1f196868 x9 : ffffffec1dac3874 [ 314.213416] x8 : 0000000000000000 x7 : 0000000000042a3a x6 : ffffff810017a180 [ 314.220547] x5 : ffffffec1ebad400 x4 : ffffffec1ebad320 x3 : 00000000000bebeb [ 314.227677] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [ 314.234807] Call trace: [ 314.237243] v3d_irq+0xec/0x2e0 [v3d] [ 314.240906] __handle_irq_event_percpu+0x58/0x218 [ 314.245609] handle_irq_event+0x54/0xb8 [ 314.249439] handle_fasteoi_irq+0xac/0x240 [ 314.253527] handle_irq_desc+0x48/0x68 [ 314.257269] generic_handle_domain_irq+0x24/0x38 [ 314.261879] gic_handle_irq+0x48/0xd8 [ 314.265533] call_on_irq_stack+0x24/0x58 [ 314.269448] do_interrupt_handler+0x88/0x98 [ 314.273624] el1_interrupt+0x34/0x68 [ 314.277193] el1h_64_irq_handler+0x18/0x28 [ 314.281281] el1h_64_irq+0x64/0x68 [ 314.284673] default_idle_call+0x3c/0x168 [ 314.288675] do_idle+0x1fc/0x230 [ 314.291895] cpu_startup_entry+0x3c/0x50 [ 314.295810] rest_init+0xe4/0xf0 [ 314.299030] start_kernel+0x5e8/0x790 [ 314.302684] __primary_switched+0x80/0x90 [ 314.306691] Code: 940029eb 360ffc13 f9442ea0 52800001 (f9406017) [ 314.312775] ---[ end trace 0000000000000000 ]--- [ 314.317384] Kernel panic - not syncing: Oops: Fatal exception in interrupt [ 314.324249] SMP: stopping secondary CPUs [ 314.328167] Kernel Offset: 0x2b9da00000 from 0xffffffc080000000 [ 314.334076] PHYS_OFFSET: 0x0 [ 314.336946] CPU features: 0x08,00002013,c0200000,0200421b [ 314.342337] Memory Limit: none [ 314.345382] ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]--- Before resetting the GPU, it's necessary to disable all interrupts and deal with any interrupt handler still in-flight. Otherwise, the GPU might reset with jobs still running, or yet, an interrupt could be handled during the reset. Cc: stable(a)vger.kernel.org Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+") Reviewed-by: Juan A. Suarez <jasuarez(a)igalia.com> Reviewed-by: Iago Toral Quiroga <itoral(a)igalia.com> Link: https://lore.kernel.org/r/20250628224243.47599-1-mcanal@igalia.com Signed-off-by: Maíra Canal <mcanal(a)igalia.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Xiaomeng Zhang <zhangxiaomeng13(a)huawei.com> --- drivers/gpu/drm/v3d/v3d_drv.h | 7 +++++++ drivers/gpu/drm/v3d/v3d_gem.c | 2 ++ drivers/gpu/drm/v3d/v3d_irq.c | 38 ++++++++++++++++++++++++++--------- 3 files changed, 37 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 8a390738d65b..a605b31a8224 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -37,6 +37,12 @@ struct v3d_queue_state { u64 emit_seqno; }; +enum v3d_irq { + V3D_CORE_IRQ, + V3D_HUB_IRQ, + V3D_MAX_IRQS, +}; + struct v3d_dev { struct drm_device drm; @@ -46,6 +52,7 @@ struct v3d_dev { int ver; bool single_irq_line; + int irq[V3D_MAX_IRQS]; void __iomem *hub_regs; void __iomem *core_regs[3]; void __iomem *bridge_regs; diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 64fe63c1938f..32cc461937cf 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -120,6 +120,8 @@ v3d_reset(struct v3d_dev *v3d) if (false) v3d_idle_axi(v3d, 0); + v3d_irq_disable(v3d); + v3d_idle_gca(v3d); v3d_reset_v3d(v3d); diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c index c88686489b88..6c233b9e8648 100644 --- a/drivers/gpu/drm/v3d/v3d_irq.c +++ b/drivers/gpu/drm/v3d/v3d_irq.c @@ -206,7 +206,7 @@ v3d_hub_irq(int irq, void *arg) int v3d_irq_init(struct v3d_dev *v3d) { - int irq1, ret, core; + int irq, ret, core; INIT_WORK(&v3d->overflow_mem_work, v3d_overflow_mem_work); @@ -217,17 +217,24 @@ v3d_irq_init(struct v3d_dev *v3d) V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS); - irq1 = platform_get_irq(v3d_to_pdev(v3d), 1); - if (irq1 == -EPROBE_DEFER) - return irq1; - if (irq1 > 0) { - ret = devm_request_irq(v3d->drm.dev, irq1, + irq = platform_get_irq(v3d_to_pdev(v3d), 1); + if (irq == -EPROBE_DEFER) + return irq; + if (irq > 0) { + v3d->irq[V3D_CORE_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ], v3d_irq, IRQF_SHARED, "v3d_core0", v3d); if (ret) goto fail; - ret = devm_request_irq(v3d->drm.dev, - platform_get_irq(v3d_to_pdev(v3d), 0), + + irq = platform_get_irq(v3d_to_pdev(v3d), 0); + if (irq < 0) + return irq; + v3d->irq[V3D_HUB_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_HUB_IRQ], v3d_hub_irq, IRQF_SHARED, "v3d_hub", v3d); if (ret) @@ -235,8 +242,12 @@ v3d_irq_init(struct v3d_dev *v3d) } else { v3d->single_irq_line = true; - ret = devm_request_irq(v3d->drm.dev, - platform_get_irq(v3d_to_pdev(v3d), 0), + irq = platform_get_irq(v3d_to_pdev(v3d), 0); + if (irq < 0) + return irq; + v3d->irq[V3D_CORE_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ], v3d_irq, IRQF_SHARED, "v3d", v3d); if (ret) @@ -271,12 +282,19 @@ void v3d_irq_disable(struct v3d_dev *v3d) { int core; + int i; /* Disable all interrupts. */ for (core = 0; core < v3d->cores; core++) V3D_CORE_WRITE(core, V3D_CTL_INT_MSK_SET, ~0); V3D_WRITE(V3D_HUB_INT_MSK_SET, ~0); + /* Finish any interrupt handler still in flight. */ + for (i = 0; i < V3D_MAX_IRQS; i++) { + if (v3d->irq[i]) + synchronize_irq(v3d->irq[i]); + } + /* Clear any pending interrupts we might have left. */ for (core = 0; core < v3d->cores; core++) V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); -- 2.34.1

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[openeuler:openEuler-1.0-LTS 1743/1743] arch/x86/mm/cpu_entry_area.c:155:5: warning: no previous prototype for 'arch_get_kallsym'
by kernel test robot 04 Aug '25

04 Aug '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: ba07135cf74b1424e2f7f0c60e59c5b206ab320c commit: d83212d5dd6761625fe87cc23016bbaa47303271 [1743/1743] kallsyms, x86: Export addresses of PTI entry trampolines config: x86_64-buildonly-randconfig-2004-20250802 (https://download.01.org/0day-ci/archive/20250804/202508040829.QB64jfaH-lkp@…) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250804/202508040829.QB64jfaH-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/202508040829.QB64jfaH-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/mm/cpu_entry_area.c:155:5: warning: no previous prototype for 'arch_get_kallsym' [-Wmissing-prototypes] 155 | int arch_get_kallsym(unsigned int symnum, unsigned long *value, char *type, | ^~~~~~~~~~~~~~~~ vim +/arch_get_kallsym +155 arch/x86/mm/cpu_entry_area.c 153 154 #ifdef CONFIG_X86_64 > 155 int arch_get_kallsym(unsigned int symnum, unsigned long *value, char *type, 156 char *name) 157 { 158 unsigned int cpu, ncpu = 0; 159 160 if (symnum >= num_possible_cpus()) 161 return -EINVAL; 162 163 for_each_possible_cpu(cpu) { 164 if (ncpu++ >= symnum) 165 break; 166 } 167 168 *value = (unsigned long)&get_cpu_entry_area(cpu)->entry_trampoline; 169 *type = 't'; 170 strlcpy(name, "__entry_SYSCALL_64_trampoline", KSYM_NAME_LEN); 171 172 return 0; 173 } 174 #endif 175 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10] usb: net: sierra: check for no status endpoint
by Ziming Du 04 Aug '25

04 Aug '25

From: Oliver Neukum <oneukum(a)suse.com> stable inclusion from stable-v6.1.147 commit 5849980faea1c792d1d5e54fdbf1e69ac0a9bfb9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICPD6S CVE: CVE-2025-38474 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4c4ca3c46167518f8534ed70f6e3b4bf86c4d158 ] The driver checks for having three endpoints and having bulk in and out endpoints, but not that the third endpoint is interrupt input. Rectify the omission. Reported-by: syzbot+3f89ec3d1d0842e95d50(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-usb/686d5a9f.050a0220.1ffab7.0017.GAE@google.… Tested-by: syzbot+3f89ec3d1d0842e95d50(a)syzkaller.appspotmail.com Fixes: eb4fd8cd355c8 ("net/usb: add sierra_net.c driver") Signed-off-by: Oliver Neukum <oneukum(a)suse.com> Link: https://patch.msgid.link/20250714111326.258378-1-oneukum@suse.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziming Du <duziming2(a)huawei.com> --- drivers/net/usb/sierra_net.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c index 0abd257b634c6..a74ac9314d508 100644 --- a/drivers/net/usb/sierra_net.c +++ b/drivers/net/usb/sierra_net.c @@ -688,6 +688,10 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf) status); return -ENODEV; } + if (!dev->status) { + dev_err(&dev->udev->dev, "No status endpoint found"); + return -ENODEV; + } /* Initialize sierra private data */ priv = kzalloc(sizeof *priv, GFP_KERNEL); if (!priv) -- 2.43.0

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[PATCH OLK-6.6] usb: net: sierra: check for no status endpoint
by Ziming Du 04 Aug '25

04 Aug '25

From: Oliver Neukum <oneukum(a)suse.com> stable inclusion from stable-v6.6.100 commit 5dd6a441748dad2f02e27b256984ca0b2d4546b6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICPD6S CVE: CVE-2025-38474 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4c4ca3c46167518f8534ed70f6e3b4bf86c4d158 ] The driver checks for having three endpoints and having bulk in and out endpoints, but not that the third endpoint is interrupt input. Rectify the omission. Reported-by: syzbot+3f89ec3d1d0842e95d50(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-usb/686d5a9f.050a0220.1ffab7.0017.GAE@google.… Tested-by: syzbot+3f89ec3d1d0842e95d50(a)syzkaller.appspotmail.com Fixes: eb4fd8cd355c8 ("net/usb: add sierra_net.c driver") Signed-off-by: Oliver Neukum <oneukum(a)suse.com> Link: https://patch.msgid.link/20250714111326.258378-1-oneukum@suse.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziming Du <duziming2(a)huawei.com> --- drivers/net/usb/sierra_net.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c index 673d3aa837926..42b66adb35f1b 100644 --- a/drivers/net/usb/sierra_net.c +++ b/drivers/net/usb/sierra_net.c @@ -689,6 +689,10 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf) status); return -ENODEV; } + if (!dev->status) { + dev_err(&dev->udev->dev, "No status endpoint found"); + return -ENODEV; + } /* Initialize sierra private data */ priv = kzalloc(sizeof *priv, GFP_KERNEL); if (!priv) -- 2.43.0

2 1

[PATCH v2 OLK-6.6] livepatch: support for super-long symbol repositioning
by Li Huafei 04 Aug '25

04 Aug '25

From: caixiaomeng 00662745 <caixiaomeng2(a)huawei.com> EulerOS inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/ICPM0M ---------------------------------------- symbols longer than KSYM_NAME_LEN will be truncated in strtab, we can not find them using original name, so we use a new format .klp.sym.objname-ref_name,ref_offset to find a unique symbol and add ref_offset to get the long name symbol address. Signed-off-by: Zhipeng Xie <xiezhipeng1(a)huawei.com> Signed-off-by: caixiaomeng <caixiaomeng2(a)huawei.com> Signed-off-by: hubin <hubin73(a)huawei.com> --- kernel/livepatch/Kconfig | 10 ++++++++++ kernel/livepatch/core.c | 12 ++++++++++++ 2 files changed, 22 insertions(+) diff --git a/kernel/livepatch/Kconfig b/kernel/livepatch/Kconfig index 239480682c92..d663ad91c619 100644 --- a/kernel/livepatch/Kconfig +++ b/kernel/livepatch/Kconfig @@ -101,4 +101,14 @@ config LIVEPATCH_ISOLATE_KPROBE do not allow both modify the same instruction when a function is marked as 'notrace' and without the reserved instructions. +config LIVEPATCH_LONG_SYMBOL_SUPPORT + bool "support relocate symbol name whose length longer than 128 bytes" + depends on LIVEPATCH_WO_FTRACE + default y + help + symbols longer than KSYM_NAME_LEN will be truncated in strtab, + we can not find them using original name, so we use a new format + .klp.sym.objname-ref_name,ref_offset to find a unique symbol + and add ref_offset to get the long name symbol address. + endmenu diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index bb7ecc516b4a..bc390975fd2c 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -233,6 +233,7 @@ static int klp_resolve_symbols(Elf_Shdr *sechdrs, const char *strtab, #endif Elf_Sym *sym; unsigned long sympos, addr; + long ref_offset; bool sym_vmlinux; bool sec_vmlinux = !strcmp(sec_objname, "vmlinux"); @@ -266,10 +267,19 @@ static int klp_resolve_symbols(Elf_Shdr *sechdrs, const char *strtab, return -EINVAL; } + ref_offset = 0; /* Format: .klp.sym.sym_objname.sym_name,sympos */ cnt = sscanf(strtab + sym->st_name, ".klp.sym.%55[^.].%511[^,],%lu", sym_objname, sym_name, &sympos); + if (IS_ENABLED(CONFIG_LIVEPATCH_LONG_SYMBOL_SUPPORT) && cnt != 3) { + /* Format: .klp.sym.objname-ref_name,ref_offset*/ + cnt = sscanf(strtab + sym->st_name, + ".klp.sym.%55[^-]-%127[^,],%ld", + sym_objname, sym_name, &ref_offset); + if (cnt == 3) + sympos = 1; + } if (cnt != 3) { pr_err("symbol %s has an incorrectly formatted name\n", strtab + sym->st_name); @@ -297,6 +307,8 @@ static int klp_resolve_symbols(Elf_Shdr *sechdrs, const char *strtab, return ret; sym->st_value = addr; + if (IS_ENABLED(CONFIG_LIVEPATCH_LONG_SYMBOL_SUPPORT)) + sym->st_value += ref_offset; } return 0; -- 2.43.0

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