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CVE-2024-43879— wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 wifi 子系统在处理802.11 HE（High Efficiency）RU（Resource Unit）分配时存在问题。

AI Predicted 5.5 Difficulty: Easy EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux c4cbaf7973a794839af080f13748335976cf3f3f< 45d20a1c54be4f3173862c7b950d4468447814c9 affected
c4cbaf7973a794839af080f13748335976cf3f3f< b289ebb0516526cb4abae081b7ec29fd4fa1209d affected
c4cbaf7973a794839af080f13748335976cf3f3f< 2e201b3d162c6c49417c438ffb30b58c9f85769f affected
c4cbaf7973a794839af080f13748335976cf3f3f< 576c64622649f3ec07e97bac8fec8b8a2ef4d086 affected
c4cbaf7973a794839af080f13748335976cf3f3f< 16ad67e73309db0c20cc2a651992bd01c05e6b27 affected
c4cbaf7973a794839af080f13748335976cf3f3f< 67b5f1054197e4f5553047759c15c1d67d4c8142 affected
c4cbaf7973a794839af080f13748335976cf3f3f< 19eaf4f2f5a981f55a265242ada2bf92b0c742dd affected
c4cbaf7973a794839af080f13748335976cf3f3f< bcbd771cd5d68c0c52567556097d75f9fc4e7cd6 affected
… +10 more rows
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I. Basic Information for CVE-2024-43879

Vulnerability Information
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Vulnerability Title
wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he() Currently NL80211_RATE_INFO_HE_RU_ALLOC_2x996 is not handled in cfg80211_calculate_bitrate_he(), leading to below warning: kernel: invalid HE MCS: bw:6, ru:6 kernel: WARNING: CPU: 0 PID: 2312 at net/wireless/util.c:1501 cfg80211_calculate_bitrate_he+0x22b/0x270 [cfg80211] Fix it by handling 2x996 RU allocation in the same way as 160 MHz bandwidth.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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 wifi 子系统在处理802.11 HE（High Efficiency）RU（Resource Unit）分配时存在问题。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux c4cbaf7973a794839af080f13748335976cf3f3f ~ 45d20a1c54be4f3173862c7b950d4468447814c9 -
Linux Linux 4.19 -

II. Public POCs for CVE-2024-43879

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III. Intelligence Information for CVE-2024-43879

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Other References for CVE-2024-43879 (8)

Same Patch Batch · Linux · 2024-08-21 · 68 CVEs total

CVE-2023-52910 8.8 HIGH iommu/iova: Fix alloc iova overflows issue
CVE-2024-43881 8.8 HIGH wifi: ath12k: change DMA direction while mapping reinjected packets
CVE-2022-48871 8.8 HIGH tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer
CVE-2024-43878 8.1 HIGH xfrm: Fix input error path memory access
CVE-2022-48883 7.8 HIGH net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent
CVE-2024-43877 7.8 HIGH media: pci: ivtv: Add check for DMA map result
CVE-2024-43880 7.8 HIGH mlxsw: spectrum_acl_erp: Fix object nesting warning
CVE-2022-48892 7.8 HIGH sched/core: Fix use-after-free bug in dup_user_cpus_ptr()
CVE-2024-43882 7.8 HIGH exec: Fix ToCToU between perm check and set-uid/gid usage
CVE-2023-52913 7.8 HIGH drm/i915: Fix potential context UAFs
CVE-2022-48899 7.8 HIGH drm/virtio: Fix GEM handle creation UAF
CVE-2022-48872 7.8 HIGH misc: fastrpc: Fix use-after-free race condition for maps
CVE-2022-48873 7.8 HIGH misc: fastrpc: Don't remove map on creater_process and device_release
CVE-2022-48874 7.8 HIGH misc: fastrpc: Fix use-after-free and race in fastrpc_map_find
CVE-2023-52903 7.8 HIGH io_uring: lock overflowing for IOPOLL
CVE-2022-48878 7.8 HIGH Bluetooth: hci_qca: Fix driver shutdown on closed serdev
CVE-2022-48887 7.8 HIGH drm/vmwgfx: Remove rcu locks from user resources
CVE-2023-52907 7.8 HIGH nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()
CVE-2024-43872 7.5 HIGH RDMA/hns: Fix soft lockup under heavy CEQE load
CVE-2023-52909 7.5 HIGH nfsd: fix handling of cached open files in nfsd4_open codepath

Showing top 20 of 68 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-43879

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