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CVE-2025-71102— Linux kernel 安全漏洞

EPSS 0.03% · P7
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I. CVE-2025-71102の基本情報

脆弱性情報
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脆弱性タイトル
scs: fix a wrong parameter in __scs_magic
ソース: NVD (National Vulnerability Database)
脆弱性説明
In the Linux kernel, the following vulnerability has been resolved: scs: fix a wrong parameter in __scs_magic __scs_magic() needs a 'void *' variable, but a 'struct task_struct *' is given. 'task_scs(tsk)' is the starting address of the task's shadow call stack, and '__scs_magic(task_scs(tsk))' is the end address of the task's shadow call stack. Here should be '__scs_magic(task_scs(tsk))'. The user-visible effect of this bug is that when CONFIG_DEBUG_STACK_USAGE is enabled, the shadow call stack usage checking function (scs_check_usage) would scan an incorrect memory range. This could lead 1. **Inaccurate stack usage reporting**: The function would calculate wrong usage statistics for the shadow call stack, potentially showing incorrect value in kmsg. 2. **Potential kernel crash**: If the value of __scs_magic(tsk)is greater than that of __scs_magic(task_scs(tsk)), the for loop may access unmapped memory, potentially causing a kernel panic. However, this scenario is unlikely because task_struct is allocated via the slab allocator (which typically returns lower addresses), while the shadow call stack returned by task_scs(tsk) is allocated via vmalloc(which typically returns higher addresses). However, since this is purely a debugging feature (CONFIG_DEBUG_STACK_USAGE), normal production systems should be not unaffected. The bug only impacts developers and testers who are actively debugging stack usage with this configuration enabled.
ソース: NVD (National Vulnerability Database)
CVSS情報
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Linux kernel 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于__scs_magic函数参数错误，可能导致不准确的堆栈使用报告或内核崩溃。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)

影響を受ける製品

ベンダープロダクト影響を受けるバージョンCPE購読
LinuxLinux 5bbaf9d1fcb9be696ee9a61636ab6803556c70f2 ~ 1727e8bd69103a68963a5613a0ddb6d8d37df5d3 -
LinuxLinux 5.8 -

II. CVE-2025-71102の公開POC

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III. CVE-2025-71102のインテリジェンス情報

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Same Patch Batch · Linux · 2026-01-14 · 43 CVEs total

CVE-2025-71113crypto: af_alg - zero initialize memory allocated via sock_kmalloc
CVE-2025-71123ext4: fix string copying in parse_apply_sb_mount_options()
CVE-2025-71110mm/slub: reset KASAN tag in defer_free() before accessing freed memory
CVE-2025-71111hwmon: (w83791d) Convert macros to functions to avoid TOCTOU
CVE-2025-71108usb: typec: ucsi: Handle incorrect num_connectors capability
CVE-2025-71106fs: PM: Fix reverse check in filesystems_freeze_callback()
CVE-2025-71105f2fs: use global inline_xattr_slab instead of per-sb slab cache
CVE-2025-71104KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer
CVE-2025-71103drm/msm: adreno: fix deferencing ifpc_reglist when not declared
CVE-2025-71107f2fs: ensure node page reads complete before f2fs_put_super() finishes
CVE-2025-71112net: hns3: add VLAN id validation before using
CVE-2025-71114via_wdt: fix critical boot hang due to unnamed resource allocation
CVE-2025-71115um: init cpu_tasks[] earlier
CVE-2025-71116libceph: make decode_pool() more resilient against corrupted osdmaps
CVE-2025-71117block: Remove queue freezing from several sysfs store callbacks
CVE-2025-71118ACPICA: Avoid walking the Namespace if start_node is NULL
CVE-2025-71120SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf
CVE-2025-71119powerpc/kexec: Enable SMT before waking offline CPUs
CVE-2025-71121parisc: Do not reprogram affinitiy on ASP chip
CVE-2025-71122iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED

Showing 20 of 43 CVEs. View all on vendor page →

IV. 関連脆弱性

同じ製品: Linux
同じベンダー: Linux

V. CVE-2025-71102へのコメント

匿名ユーザー
2026-01-15 06:08:19

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