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CVE-2025-22037— ksmbd: fix null pointer dereference in alloc_preauth_hash()

EPSS 0.14% · P33
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I. Basic Information for CVE-2025-22037

Vulnerability Information
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Vulnerability Title
ksmbd: fix null pointer dereference in alloc_preauth_hash()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in alloc_preauth_hash() The Client send malformed smb2 negotiate request. ksmbd return error response. Subsequently, the client can send smb2 session setup even thought conn->preauth_info is not allocated. This patch add KSMBD_SESS_NEED_SETUP status of connection to ignore session setup request if smb2 negotiate phase is not complete.
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未分配preauth_info时空指针取消引用。
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 0626e6641f6b467447c81dd7678a69c66f7746cf ~ cce57cd8c5dead24127cf2308fdd60fcad2d6ba6 -
LinuxLinux 5.15 -

II. Public POCs for CVE-2025-22037

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III. Intelligence Information for CVE-2025-22037

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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 → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-22037

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