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CVE-2026-23106— timekeeping: Adjust the leap state for the correct auxiliary timekeeper

EPSS 0.02% · P5
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I. Basic Information for CVE-2026-23106

Vulnerability Information
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Vulnerability Title
timekeeping: Adjust the leap state for the correct auxiliary timekeeper
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: timekeeping: Adjust the leap state for the correct auxiliary timekeeper When __do_ajdtimex() was introduced to handle adjtimex for any timekeeper, this reference to tk_core was not updated. When called on an auxiliary timekeeper, the core timekeeper would be updated incorrectly. This gets caught by the lock debugging diagnostics because the timekeepers sequence lock gets written to without holding its associated spinlock: WARNING: include/linux/seqlock.h:226 at __do_adjtimex+0x394/0x3b0, CPU#2: test/125 aux_clock_adj (kernel/time/timekeeping.c:2979) __do_sys_clock_adjtime (kernel/time/posix-timers.c:1161 kernel/time/posix-timers.c:1173) do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1)) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131) Update the correct auxiliary timekeeper.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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，该漏洞源于调整辅助时间管理器的闰秒状态时引用错误，可能导致时间更新不正确。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 775f71ebedd382da390dc16a4c28cffa5b937f79 ~ 8f7c9dbeaa0be5810e44d323735967d3dba9239d -
LinuxLinux 6.17 -

II. Public POCs for CVE-2026-23106

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III. Intelligence Information for CVE-2026-23106

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Same Patch Batch · Linux · 2026-02-04 · 79 CVEs total

CVE-2026-230988.8 HIGHnetrom: fix double-free in nr_route_frame()
CVE-2026-230667.8 HIGHrxrpc: Fix recvmsg() unconditional requeue
CVE-2026-230777.8 HIGHmm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge
CVE-2026-230747.8 HIGHnet/sched: Enforce that teql can only be used as root qdisc
CVE-2026-231037.8 HIGHipvlan: Make the addrs_lock be per port
CVE-2026-231057.8 HIGHnet/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag
CVE-2026-230957.5 HIGHgue: Fix skb memleak with inner IP protocol 0.
CVE-2025-71197w1: therm: Fix off-by-one buffer overflow in alarms_store
CVE-2025-71198iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection
CVE-2025-71199iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driver
CVE-2026-23056uacce: implement mremap in uacce_vm_ops to return -EPERM
CVE-2026-23055i2c: riic: Move suspend handling to NOIRQ phase
CVE-2026-23051drm/amdgpu: fix drm panic null pointer when driver not support atomic
CVE-2026-23057vsock/virtio: Coalesce only linear skb
CVE-2026-23058can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak
CVE-2026-23053NFS: Fix a deadlock involving nfs_release_folio()
CVE-2026-23065platform/x86/amd: Fix memory leak in wbrf_record()
CVE-2026-23064net/sched: act_ife: avoid possible NULL deref
CVE-2026-23063uacce: ensure safe queue release with state management
CVE-2026-23067iommu/io-pgtable-arm: fix size_t signedness bug in unmap path

Showing top 20 of 79 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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