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CVE-2026-46332— greybus: gb-beagleplay: bound bootloader receive buffering

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greybus gb-beagleplay驱动中cc1352_bootloader_rx函数未检查接收数据块是否超出rx_buffer剩余空间，可能导致缓冲区溢出。

CVSS 8.0 · High EPSS 0.33% · P24

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 0cf7befa3ea2e7284d8ba5b8f45a546865b09edb< 663c2728a6d0f781044431111b53a27f71027e48 affected
0cf7befa3ea2e7284d8ba5b8f45a546865b09edb< fb91d4e49fcbea0b5091394ac5b8f7d4124265c3 affected
0cf7befa3ea2e7284d8ba5b8f45a546865b09edb< 0339a746ff7cd3f9d10f565e89c99dc93191e58d affected
0cf7befa3ea2e7284d8ba5b8f45a546865b09edb< 1214bf28965ceaf584fb20d357731264dd2e10e1 affected
6.12 affected
< 6.12 unaffected
6.12.86≤ 6.12.* unaffected
6.18.27≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-46332

Vulnerability Information
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Vulnerability Title
greybus: gb-beagleplay: bound bootloader receive buffering
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: greybus: gb-beagleplay: bound bootloader receive buffering cc1352_bootloader_rx() appends each serdev chunk into the fixed rx_buffer before parsing bootloader packets. The helper can keep leftover bytes between callbacks and may receive multiple packets in one callback, so a single count value is not constrained by one packet length. Check that the incoming chunk fits in the remaining receive buffer space before memcpy(). If it does not, drop the staged data and consume the bytes instead of overflowing rx_buffer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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greybus gb-beagleplay驱动中cc1352_bootloader_rx函数未检查接收数据块是否超出rx_buffer剩余空间，可能导致缓冲区溢出。
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 0cf7befa3ea2e7284d8ba5b8f45a546865b09edb ~ 663c2728a6d0f781044431111b53a27f71027e48 -
Linux Linux 6.12 -

II. Public POCs for CVE-2026-46332

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-46332

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Patches & Fixes for CVE-2026-46332 (3)

Same Patch Batch · Linux · 2026-06-09 · 21 CVEs total

CVE-2026-46325 9.8 CRITICAL RDMA/rxe: Fix iova-to-va conversion for MR page sizes != PAGE_SIZE
CVE-2026-46316 9.3 CRITICAL KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry
CVE-2026-46317 8.8 HIGH KVM: arm64: Reassign nested_mmus array behind mmu_lock
CVE-2026-46326 8.4 HIGH iio: pressure: mprls0025pa: fix spi_transfer struct initialisation
CVE-2026-52907 7.8 HIGH media: rockchip: rkcif: fix off by one bugs
CVE-2026-46319 7.8 HIGH net/sched: act_ct: Only release RCU read lock after ct_ft
CVE-2026-46330 7.8 HIGH Revert "net/smc: Introduce TCP ULP support"
CVE-2026-46323 7.8 HIGH net: gro: don't merge zcopy skbs
CVE-2026-46327 7.8 HIGH dm: fix unlocked test for dm_suspended_md
CVE-2026-46324 7.8 HIGH netfilter: nf_tables: use list_del_rcu for netlink hooks
CVE-2026-52906 7.7 HIGH 9p: fix access mode flags being ORed instead of replaced
CVE-2026-46320 7.4 HIGH tap: free page on error paths in tap_get_user_xdp()
CVE-2026-46328 7.3 HIGH apparmor: fix rlimit for posix cpu timers
CVE-2026-46322 7.1 HIGH tun: free page on build_skb failure in tun_xdp_one()
CVE-2026-46321 7.1 HIGH tun: free page on short-frame rejection in tun_xdp_one()
CVE-2026-46329 erofs: handle end of filesystem properly for file-backed mounts
CVE-2026-46318 Revert "mm/hugetlbfs: update hugetlbfs to use mmap_prepare"
CVE-2026-52904 drm/nouveau: fix nvkm_device leak on aperture removal failure
CVE-2026-52905 mm/damon/core: disallow non-power of two min_region_sz on damon_start()
CVE-2026-46315 io_uring/waitid: clear waitid info before copying it to userspace

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46332

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