[PATCH v2 OLK-5.10 0/6] fix some CVEs
Guixin Liu (1): scsi: ufs: bsg: Set bsg_queue to NULL after removal Haoxiang Li (1): rapidio: fix an API misues when rio_add_net() fails Ivan Stepchenko (1): drm/amdgpu: Fix potential NULL pointer dereference in atomctrl_get_smc_sclk_range_table Marco Nelissen (1): filemap: avoid truncating 64-bit offset to 32 bits Sean Christopherson (1): KVM: x86: Reset IRTE to host control if *new* route isn't postable Yongzhi Liu (1): drm/amd/display: Fix memory leak arch/x86/kvm/svm/avic.c | 58 ++++++++------- arch/x86/kvm/vmx/posted_intr.c | 28 +++----- .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 72 ++++++++++++++----- .../drm/amd/pm/powerplay/hwmgr/ppatomctrl.c | 2 + drivers/rapidio/devices/rio_mport_cdev.c | 3 +- drivers/scsi/ufs/ufs_bsg.c | 1 + mm/filemap.c | 2 +- 7 files changed, 101 insertions(+), 65 deletions(-) -- 2.43.0
From: Guixin Liu <kanie@linux.alibaba.com> mainline inclusion from mainline-v6.14-rc1 commit 1e95c798d8a7f70965f0f88d4657b682ff0ec75f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBPC5X CVE: CVE-2024-54458 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ------------------------------------------- Currently, this does not cause any issues, but I believe it is necessary to set bsg_queue to NULL after removing it to prevent potential use-after-free (UAF) access. Signed-off-by: Guixin Liu <kanie@linux.alibaba.com> Link: https://lore.kernel.org/r/20241218014214.64533-3-kanie@linux.alibaba.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Conflicts: drivers/scsi/ufs/ufs_bsg.c drivers/ufs/core/ufs_bsg.c [Conflicts due to usf_bsg.c hasn't been moved to drivers/ufs/core.] Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com> --- drivers/scsi/ufs/ufs_bsg.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/ufs/ufs_bsg.c b/drivers/scsi/ufs/ufs_bsg.c index 5b2bc1a6f922..19111f864e23 100644 --- a/drivers/scsi/ufs/ufs_bsg.c +++ b/drivers/scsi/ufs/ufs_bsg.c @@ -175,6 +175,7 @@ void ufs_bsg_remove(struct ufs_hba *hba) return; bsg_remove_queue(hba->bsg_queue); + hba->bsg_queue = NULL; device_del(bsg_dev); put_device(bsg_dev); -- 2.43.0
From: Yongzhi Liu <lyz_cs@pku.edu.cn> stable inclusion from stable-v5.15.34 commit 7e10369c72db7a0e2f77b2e306aadc07aef6b07a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBP6EN CVE: CVE-2022-49135 Reference: https://git.kernel.org/stable/c/7e10369c72db7a0e2f77b2e306aadc07aef6b07a -------------------------------- [ Upstream commit 5d5c6dba2b43e28845d7d7ed32a36802329a5f52 ] [why] Resource release is needed on the error handling path to prevent memory leak. [how] Fix this by adding kfree on the error handling path. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Yongzhi Liu <lyz_cs@pku.edu.cn> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Conflicts: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c [1. Context differences; 2. The current code version (hulk-5.10) does not introduce the function dcc_en_bits_read, so the CVE bugfix for this function does not involved.] Signed-off-by: Lulu Yao <yaolulu5@huawei.com> --- .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 72 ++++++++++++++----- 1 file changed, 54 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 6914738f0275..f4a1ad8959b7 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -229,8 +229,10 @@ static ssize_t dp_link_settings_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -388,8 +390,10 @@ static ssize_t dp_phy_settings_read(struct file *f, char __user *buf, break; r = put_user((*(rd_buf + result)), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -1195,8 +1199,10 @@ static ssize_t dp_dsc_clock_en_read(struct file *f, char __user *buf, break; } - if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + } dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1212,8 +1218,10 @@ static ssize_t dp_dsc_clock_en_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -1351,8 +1359,10 @@ static ssize_t dp_dsc_slice_width_read(struct file *f, char __user *buf, break; } - if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + } dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1368,8 +1378,10 @@ static ssize_t dp_dsc_slice_width_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -1505,8 +1517,10 @@ static ssize_t dp_dsc_slice_height_read(struct file *f, char __user *buf, break; } - if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + } dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1522,8 +1536,10 @@ static ssize_t dp_dsc_slice_height_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -1655,8 +1671,10 @@ static ssize_t dp_dsc_bits_per_pixel_read(struct file *f, char __user *buf, break; } - if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + } dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1672,8 +1690,10 @@ static ssize_t dp_dsc_bits_per_pixel_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -1800,8 +1820,10 @@ static ssize_t dp_dsc_pic_width_read(struct file *f, char __user *buf, break; } - if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + } dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1817,8 +1839,10 @@ static ssize_t dp_dsc_pic_width_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -1857,8 +1881,10 @@ static ssize_t dp_dsc_pic_height_read(struct file *f, char __user *buf, break; } - if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + } dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1874,8 +1900,10 @@ static ssize_t dp_dsc_pic_height_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -1929,8 +1957,10 @@ static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf, break; } - if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + } dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1946,8 +1976,10 @@ static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; @@ -2001,8 +2033,10 @@ static ssize_t dp_dsc_slice_bpg_offset_read(struct file *f, char __user *buf, break; } - if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + } dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -2018,8 +2052,10 @@ static ssize_t dp_dsc_slice_bpg_offset_read(struct file *f, char __user *buf, break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; -- 2.43.0
From: Ivan Stepchenko <sid@itb.spb.ru> mainline inclusion from mainline-v6.14-rc1 commit 357445e28ff004d7f10967aa93ddb4bffa5c3688 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBREC1 CVE: CVE-2024-58052 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- The function atomctrl_get_smc_sclk_range_table() does not check the return value of smu_atom_get_data_table(). If smu_atom_get_data_table() fails to retrieve SMU_Info table, it returns NULL which is later dereferenced. Found by Linux Verification Center (linuxtesting.org) with SVACE. In practice this should never happen as this code only gets called on polaris chips and the vbios data table will always be present on those chips. Fixes: a23eefa2f461 ("drm/amd/powerplay: enable dpm for baffin.") Signed-off-by: Ivan Stepchenko <sid@itb.spb.ru> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com> --- drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c index 165af862d054..04dbd9f89a45 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c @@ -1370,6 +1370,8 @@ int atomctrl_get_smc_sclk_range_table(struct pp_hwmgr *hwmgr, struct pp_atom_ctr GetIndexIntoMasterTable(DATA, SMU_Info), &size, &frev, &crev); + if (!psmu_info) + return -EINVAL; for (i = 0; i < psmu_info->ucSclkEntryNum; i++) { table->entry[i].ucVco_setting = psmu_info->asSclkFcwRangeEntry[i].ucVco_setting; -- 2.43.0
From: Marco Nelissen <marco.nelissen@gmail.com> mainline inclusion from mainline-v6.13 commit f505e6c91e7a22d10316665a86d79f84d9f0ba76 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBJXF6 CVE: CVE-2025-21665 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- On 32-bit kernels, folio_seek_hole_data() was inadvertently truncating a 64-bit value to 32 bits, leading to a possible infinite loop when writing to an xfs filesystem. Link: https://lkml.kernel.org/r/20250102190540.1356838-1-marco.nelissen@gmail.com Fixes: 54fa39ac2e00 ("iomap: use mapping_seek_hole_data") Signed-off-by: Marco Nelissen <marco.nelissen@gmail.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Conflicts: mm/filemap.c [context conflicts, becasuse this code branch does not have folio_seek_hole_data()] Signed-off-by: Kaixiong Yu <yukaixiong@huawei.com> Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com> --- mm/filemap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/filemap.c b/mm/filemap.c index c8863a76d531..18e304ce6229 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2765,7 +2765,7 @@ static inline loff_t page_seek_hole_data(struct xa_state *xas, do { if (ops->is_partially_uptodate(page, offset, bsz) == seek_data) break; - start = (start + bsz) & ~(bsz - 1); + start = (start + bsz) & ~((u64)bsz - 1); offset += bsz; } while (offset < thp_size(page)); unlock: -- 2.43.0
From: Haoxiang Li <haoxiang_li2024@163.com> stable inclusion from stable-v5.10.235 commit 88ddad53e4cfb6de861c6d4fb7b25427f46baed5 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBY43Q CVE: CVE-2025-21934 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- commit b2ef51c74b0171fde7eb69b6152d3d2f743ef269 upstream. rio_add_net() calls device_register() and fails when device_register() fails. Thus, put_device() should be used rather than kfree(). Add "mport->net = NULL;" to avoid a use after free issue. Link: https://lkml.kernel.org/r/20250227073409.3696854-1-haoxiang_li2024@163.com Fixes: e8de370188d0 ("rapidio: add mport char device driver") Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Cc: Alexandre Bounine <alex.bou9@gmail.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Yang Yingliang <yangyingliang@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38@huawei.com> Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com> --- drivers/rapidio/devices/rio_mport_cdev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c index 5ac2dc1e2abd..f9dfe7b12ec7 100644 --- a/drivers/rapidio/devices/rio_mport_cdev.c +++ b/drivers/rapidio/devices/rio_mport_cdev.c @@ -1739,7 +1739,8 @@ static int rio_mport_add_riodev(struct mport_cdev_priv *priv, err = rio_add_net(net); if (err) { rmcd_debug(RDEV, "failed to register net, err=%d", err); - kfree(net); + put_device(&net->dev); + mport->net = NULL; goto cleanup; } } -- 2.43.0
From: Sean Christopherson <seanjc@google.com> stable inclusion from stable-v5.10.237 commit e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC6M58 CVE: CVE-2025-37885 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- commit 9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2 upstream. Restore an IRTE back to host control (remapped or posted MSI mode) if the *new* GSI route prevents posting the IRQ directly to a vCPU, regardless of the GSI routing type. Updating the IRTE if and only if the new GSI is an MSI results in KVM leaving an IRTE posting to a vCPU. The dangling IRTE can result in interrupts being incorrectly delivered to the guest, and in the worst case scenario can result in use-after-free, e.g. if the VM is torn down, but the underlying host IRQ isn't freed. Fixes: efc644048ecd ("KVM: x86: Update IRTE for posted-interrupts") Fixes: 411b44ba80ab ("svm: Implements update_pi_irte hook to setup posted interrupt") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com> Message-ID: <20250404193923.1413163-3-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com> --- arch/x86/kvm/svm/avic.c | 58 ++++++++++++++++++---------------- arch/x86/kvm/vmx/posted_intr.c | 28 ++++++---------- 2 files changed, 41 insertions(+), 45 deletions(-) diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c index 680a628c0546..6a1506f21713 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -789,6 +789,7 @@ int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq, { struct kvm_kernel_irq_routing_entry *e; struct kvm_irq_routing_table *irq_rt; + bool enable_remapped_mode = true; int idx, ret = 0; if (!kvm_arch_has_assigned_device(kvm) || @@ -826,6 +827,8 @@ int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq, kvm_vcpu_apicv_active(&svm->vcpu)) { struct amd_iommu_pi_data pi; + enable_remapped_mode = false; + /* Try to enable guest_mode in IRTE */ pi.base = __sme_set(page_to_phys(svm->avic_backing_page) & AVIC_HPA_MASK); @@ -844,33 +847,6 @@ int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq, */ if (!ret && pi.is_guest_mode) svm_ir_list_add(svm, &pi); - } else { - /* Use legacy mode in IRTE */ - struct amd_iommu_pi_data pi; - - /** - * Here, pi is used to: - * - Tell IOMMU to use legacy mode for this interrupt. - * - Retrieve ga_tag of prior interrupt remapping data. - */ - pi.prev_ga_tag = 0; - pi.is_guest_mode = false; - ret = irq_set_vcpu_affinity(host_irq, &pi); - - /** - * Check if the posted interrupt was previously - * setup with the guest_mode by checking if the ga_tag - * was cached. If so, we need to clean up the per-vcpu - * ir_list. - */ - if (!ret && pi.prev_ga_tag) { - int id = AVIC_GATAG_TO_VCPUID(pi.prev_ga_tag); - struct kvm_vcpu *vcpu; - - vcpu = kvm_get_vcpu_by_id(kvm, id); - if (vcpu) - svm_ir_list_del(to_svm(vcpu), &pi); - } } if (!ret && svm) { @@ -886,6 +862,34 @@ int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq, } ret = 0; + if (enable_remapped_mode) { + /* Use legacy mode in IRTE */ + struct amd_iommu_pi_data pi; + + /** + * Here, pi is used to: + * - Tell IOMMU to use legacy mode for this interrupt. + * - Retrieve ga_tag of prior interrupt remapping data. + */ + pi.prev_ga_tag = 0; + pi.is_guest_mode = false; + ret = irq_set_vcpu_affinity(host_irq, &pi); + + /** + * Check if the posted interrupt was previously + * setup with the guest_mode by checking if the ga_tag + * was cached. If so, we need to clean up the per-vcpu + * ir_list. + */ + if (!ret && pi.prev_ga_tag) { + int id = AVIC_GATAG_TO_VCPUID(pi.prev_ga_tag); + struct kvm_vcpu *vcpu; + + vcpu = kvm_get_vcpu_by_id(kvm, id); + if (vcpu) + svm_ir_list_del(to_svm(vcpu), &pi); + } + } out: srcu_read_unlock(&kvm->irq_srcu, idx); return ret; diff --git a/arch/x86/kvm/vmx/posted_intr.c b/arch/x86/kvm/vmx/posted_intr.c index 9689541fa027..5878f439e1ac 100644 --- a/arch/x86/kvm/vmx/posted_intr.c +++ b/arch/x86/kvm/vmx/posted_intr.c @@ -255,6 +255,7 @@ int pi_update_irte(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq, { struct kvm_kernel_irq_routing_entry *e; struct kvm_irq_routing_table *irq_rt; + bool enable_remapped_mode = true; struct kvm_lapic_irq irq; struct kvm_vcpu *vcpu; struct vcpu_data vcpu_info; @@ -293,21 +294,8 @@ int pi_update_irte(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq, kvm_set_msi_irq(kvm, e, &irq); if (!kvm_intr_is_single_vcpu(kvm, &irq, &vcpu) || - !kvm_irq_is_postable(&irq)) { - /* - * Make sure the IRTE is in remapped mode if - * we don't handle it in posted mode. - */ - ret = irq_set_vcpu_affinity(host_irq, NULL); - if (ret < 0) { - printk(KERN_INFO - "failed to back to remapped mode, irq: %u\n", - host_irq); - goto out; - } - + !kvm_irq_is_postable(&irq)) continue; - } vcpu_info.pi_desc_addr = __pa(&to_vmx(vcpu)->pi_desc); vcpu_info.vector = irq.vector; @@ -315,11 +303,12 @@ int pi_update_irte(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq, trace_kvm_pi_irte_update(host_irq, vcpu->vcpu_id, e->gsi, vcpu_info.vector, vcpu_info.pi_desc_addr, set); - if (set) - ret = irq_set_vcpu_affinity(host_irq, &vcpu_info); - else - ret = irq_set_vcpu_affinity(host_irq, NULL); + if (!set) + continue; + + enable_remapped_mode = false; + ret = irq_set_vcpu_affinity(host_irq, &vcpu_info); if (ret < 0) { printk(KERN_INFO "%s: failed to update PI IRTE\n", __func__); @@ -327,6 +316,9 @@ int pi_update_irte(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq, } } + if (enable_remapped_mode) + ret = irq_set_vcpu_affinity(host_irq, NULL); + ret = 0; out: srcu_read_unlock(&kvm->irq_srcu, idx); -- 2.43.0
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