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CVE-2026-46305— staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc

AI Predicted 5.5 Difficulty: Moderate EPSS 0.14% · P4

Possible ATT&CK Techniques 1AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinux980cd426a25747daf8ed25e2a1904b2d26ffbb3d< 0a5f411becfb7c57aa89827213d31ef23a03d75aaffected
980cd426a25747daf8ed25e2a1904b2d26ffbb3d< bc851db06045a40c18233dd76ef0562d7f8bb6dbaffected
7.0affected
< 7.0unaffected
7.0.7≤ 7.0.*unaffected
7.1≤ *unaffected
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I. Basic Information for CVE-2026-46305

Vulnerability Information
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Vulnerability Title
staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc The return value of kzalloc_flex() is used without ensuring that the allocation succeeded, and the pointer is dereferenced unconditionally. Guard the access to the allocated structure to avoid a potential NULL pointer dereference if the allocation fails.
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staging rtl8723bs驱动中rtw_cbuf_alloc函数空指针取消引用，可能导致空指针取消引用。
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 980cd426a25747daf8ed25e2a1904b2d26ffbb3d ~ 0a5f411becfb7c57aa89827213d31ef23a03d75a -
LinuxLinux 7.0 -

II. Public POCs for CVE-2026-46305

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III. Intelligence Information for CVE-2026-46305

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Patches & Fixes for CVE-2026-46305 (2)

Same Patch Batch · Linux · 2026-06-08 · 41 CVEs total

CVE-2026-462899.8 CRITICALlib/scatterlist: fix length calculations in extract_kvec_to_sg
CVE-2026-462888.4 HIGHof: unittest: fix use-after-free in of_unittest_changeset()
CVE-2026-463078.3 HIGHwifi: ath5k: do not access array OOB
CVE-2026-463038.2 HIGHisofs: validate Rock Ridge CE continuation extent against volume size
CVE-2026-462747.8 HIGHio-wq: check that the predecessor is hashed in io_wq_remove_pending()
CVE-2026-463117.8 HIGHdrm/amdgpu/userq: fix access to stale wptr mapping
CVE-2026-462757.8 HIGHBluetooth: hci_uart: fix UAFs and race conditions in close and init paths
CVE-2026-462777.8 HIGHmm/zone_device: do not touch device folio after calling ->folio_free()
CVE-2026-462807.8 HIGHlib: test_hmm: evict device pages on file close to avoid use-after-free
CVE-2026-463067.5 HIGHflow_dissector: do not dissect PPPoE PFC frames
CVE-2026-463047.5 HIGHnvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free
CVE-2026-462997.0 HIGHhfsplus: fix held lock freed on hfsplus_fill_super()
CVE-2026-46287net: txgbe: fix RTNL assertion warning when remove module
CVE-2026-46286leds: qcom-lpg: Check for array overflow when selecting the high resolution
CVE-2026-46279mm/alloc_tag: clear codetag for pages allocated before page_ext initialization
CVE-2026-46285mtd: docg3: fix use-after-free in docg3_release()
CVE-2026-46284mm/hugetlb: fix early boot crash on parameters without '=' separator
CVE-2026-46283tpm: Use kfree_sensitive() to free auth session in tpm_dev_release()
CVE-2026-46282iio: frequency: admv1013: fix NULL pointer dereference on str
CVE-2026-46281vmalloc: fix buffer overflow in vrealloc_node_align()

Showing top 20 of 41 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46305

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