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CVE-2025-22074— ksmbd: fix r_count dec/increment mismatch

EPSS 0.06% · P19

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux09aeab68033161cb54f194da93e51a11aee6144b< 4790bcb269e5d6d88200a67c54ae6d627332a3beaffected
a4261bbc33fbf99b99c80aa3a2c5097611802980< 457db486203c90e10c3efc87fd45cc7000b1cd36affected
f17d1c63a76b0fe8e9c78023a86507a3a6d62cfa< 20378cf48359f39dee0ef9b61470ebe77bd49c0daffected
3aa660c059240e0c795217182cf7df32909dd917< c2ec33d46b4d1c8085dab5d02e00b21f4f0fb8a9affected
3aa660c059240e0c795217182cf7df32909dd917< ddb7ea36ba7129c2ed107e2186591128618864e1affected
6.14affected
< 6.14unaffected
6.6.87≤ 6.6.*unaffected
… +4 more rows
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I. Basic Information for CVE-2025-22074

Vulnerability Information
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Vulnerability Title
ksmbd: fix r_count dec/increment mismatch
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix r_count dec/increment mismatch r_count is only increased when there is an oplock break wait, so r_count inc/decrement are not paired. This can cause r_count to become negative, which can lead to a problem where the ksmbd thread does not terminate.
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ksmbd中r_count增减不匹配，可能导致负数计数和线程终止问题。
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 09aeab68033161cb54f194da93e51a11aee6144b ~ 4790bcb269e5d6d88200a67c54ae6d627332a3be -
LinuxLinux 6.14 -

II. Public POCs for CVE-2025-22074

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III. Intelligence Information for CVE-2025-22074

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Same Patch Batch · Linux · 2025-04-16 · 127 CVEs total

CVE-2025-220408.8 HIGHksmbd: fix session use-after-free in multichannel connection
CVE-2025-220418.8 HIGHksmbd: fix use-after-free in ksmbd_sessions_deregister()
CVE-2025-22093drm/amd/display: avoid NPD when ASIC does not support DMUB
CVE-2025-22107net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105_table_delete_entry()
CVE-2025-22106vmxnet3: unregister xdp rxq info in the reset path
CVE-2025-22105bonding: check xdp prog when set bond mode
CVE-2025-22104ibmvnic: Use kernel helpers for hex dumps
CVE-2025-22103net: fix NULL pointer dereference in l3mdev_l3_rcv
CVE-2025-22102Bluetooth: btnxpuart: Fix kernel panic during FW release
CVE-2025-22100drm/panthor: Fix race condition when gathering fdinfo group samples
CVE-2025-22101net: libwx: fix Tx L4 checksum
CVE-2025-22099drm: xlnx: zynqmp_dpsub: Add NULL check in zynqmp_audio_init
CVE-2025-22097drm/vkms: Fix use after free and double free on init error
CVE-2025-22098drm: zynqmp_dp: Fix a deadlock in zynqmp_dp_ignore_hpd_set()
CVE-2025-22096drm/msm/gem: Fix error code msm_parse_deps()
CVE-2025-22095PCI: brcmstb: Fix error path after a call to regulator_bulk_get()
CVE-2025-22094powerpc/perf: Fix ref-counting on the PMU 'vpa_pmu'
CVE-2025-22083vhost-scsi: Fix handling of multiple calls to vhost_scsi_set_endpoint
CVE-2025-22082iio: backend: make sure to NULL terminate stack buffer
CVE-2025-22081fs/ntfs3: Fix a couple integer overflows on 32bit systems

Showing top 20 of 127 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-22074

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