CVE-2022-50678— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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brcmfmac中无效地址访问，可能导致内核崩溃。
可能的 ATT&CK 技术 1 AI
T1068 · Exploitation for Privilege Escalation影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3< 7ccb0529446ae68a8581916bfc95c353306d76ba |
affected |
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3< 1c12d47a9017a7745585b57b9b0fdc0d8c50978e |
affected | ||
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3< 56a0ac48634155d2b866b99fba7e1dd8df4e2804 |
affected | ||
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3< 50e45034c5802cedbf5b707364ea76ace29ad984 |
affected | ||
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3< 75995ce1c926ee87bf93d58977c766b4e7744715 |
affected | ||
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3< 4d4dcfa6b4e85a878401f4fbae4cafc88cdcceb4 |
affected | ||
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3< 826405a911473b6ee8bd2aa891cb2f03a13efa17 |
affected | ||
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3< aa666b68e73fc06d83c070d96180b9010cf5a960 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2022-50678 基础信息
漏洞信息
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Vulnerability Title
wifi: brcmfmac: fix invalid address access when enabling SCAN log level
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: fix invalid address access when enabling SCAN log level
The variable i is changed when setting random MAC address and causes
invalid address access when printing the value of pi->reqs[i]->reqid.
We replace reqs index with ri to fix the issue.
[ 136.726473] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000
[ 136.737365] Mem abort info:
[ 136.740172] ESR = 0x96000004
[ 136.743359] Exception class = DABT (current EL), IL = 32 bits
[ 136.749294] SET = 0, FnV = 0
[ 136.752481] EA = 0, S1PTW = 0
[ 136.755635] Data abort info:
[ 136.758514] ISV = 0, ISS = 0x00000004
[ 136.762487] CM = 0, WnR = 0
[ 136.765522] user pgtable: 4k pages, 48-bit VAs, pgdp = 000000005c4e2577
[ 136.772265] [0000000000000000] pgd=0000000000000000
[ 136.777160] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[ 136.782732] Modules linked in: brcmfmac(O) brcmutil(O) cfg80211(O) compat(O)
[ 136.789788] Process wificond (pid: 3175, stack limit = 0x00000000053048fb)
[ 136.796664] CPU: 3 PID: 3175 Comm: wificond Tainted: G O 4.19.42-00001-g531a5f5 #1
[ 136.805532] Hardware name: Freescale i.MX8MQ EVK (DT)
[ 136.810584] pstate: 60400005 (nZCv daif +PAN -UAO)
[ 136.815429] pc : brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]
[ 136.821811] lr : brcmf_pno_config_sched_scans+0x67c/0xa80 [brcmfmac]
[ 136.828162] sp : ffff00000e9a3880
[ 136.831475] x29: ffff00000e9a3890 x28: ffff800020543400
[ 136.836786] x27: ffff8000b1008880 x26: ffff0000012bf6a0
[ 136.842098] x25: ffff80002054345c x24: ffff800088d22400
[ 136.847409] x23: ffff0000012bf638 x22: ffff0000012bf6d8
[ 136.852721] x21: ffff8000aced8fc0 x20: ffff8000ac164400
[ 136.858032] x19: ffff00000e9a3946 x18: 0000000000000000
[ 136.863343] x17: 0000000000000000 x16: 0000000000000000
[ 136.868655] x15: ffff0000093f3b37 x14: 0000000000000050
[ 136.873966] x13: 0000000000003135 x12: 0000000000000000
[ 136.879277] x11: 0000000000000000 x10: ffff000009a61888
[ 136.884589] x9 : 000000000000000f x8 : 0000000000000008
[ 136.889900] x7 : 303a32303d726464 x6 : ffff00000a1f957d
[ 136.895211] x5 : 0000000000000000 x4 : ffff00000e9a3942
[ 136.900523] x3 : 0000000000000000 x2 : ffff0000012cead8
[ 136.905834] x1 : ffff0000012bf6d8 x0 : 0000000000000000
[ 136.911146] Call trace:
[ 136.913623] brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]
[ 136.919658] brcmf_pno_start_sched_scan+0xa4/0x118 [brcmfmac]
[ 136.925430] brcmf_cfg80211_sched_scan_start+0x80/0xe0 [brcmfmac]
[ 136.931636] nl80211_start_sched_scan+0x140/0x308 [cfg80211]
[ 136.937298] genl_rcv_msg+0x358/0x3f4
[ 136.940960] netlink_rcv_skb+0xb4/0x118
[ 136.944795] genl_rcv+0x34/0x48
[ 136.947935] netlink_unicast+0x264/0x300
[ 136.951856] netlink_sendmsg+0x2e4/0x33c
[ 136.955781] __sys_sendto+0x120/0x19c
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
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brcmfmac中无效地址访问，可能导致内核崩溃。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2022-50678 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
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同批安全公告 · Linux · 2025-12-09 · 共 152 条
| CVE-2025-40343 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-53794 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-50666 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-53827 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53785 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53822 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-40336 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-40342 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-40328 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53851 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-40337 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50656 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53803 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53804 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53819 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53816 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53800 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53790 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53795 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53810 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 152 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2022-50678
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