CVE-2024-46755— 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，该漏洞源于未正确验证数据的有效性。
影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 93a1df48d224296fb527d32fbec4d5162828feb4< a12cf97cbefa139ef8d95081f2ea047cbbd74b7a |
affected |
93a1df48d224296fb527d32fbec4d5162828feb4< d834433ff313838a259bb6607055ece87b895b66 |
affected | ||
93a1df48d224296fb527d32fbec4d5162828feb4< 9813770f25855b866b8ead8155b8806b2db70f6d |
affected | ||
93a1df48d224296fb527d32fbec4d5162828feb4< cb67b2e51b75f1a17bee7599c8161b96e1808a70 |
affected | ||
93a1df48d224296fb527d32fbec4d5162828feb4< 1a05d8d02cfa3540ea5dbd6b39446bd3f515521f |
affected | ||
93a1df48d224296fb527d32fbec4d5162828feb4< c2618dcb26c7211342b54520b5b148c0d3471c8a |
affected | ||
93a1df48d224296fb527d32fbec4d5162828feb4< c16916dd6c16fa7e13ca3923eb6b9f50d848ad03 |
affected | ||
93a1df48d224296fb527d32fbec4d5162828feb4< c145eea2f75ff7949392aebecf7ef0a81c1f6c14 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-46755 基础信息
漏洞信息
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Vulnerability Title
wifi: mwifiex: Do not return unused priv in mwifiex_get_priv_by_id()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mwifiex: Do not return unused priv in mwifiex_get_priv_by_id()
mwifiex_get_priv_by_id() returns the priv pointer corresponding to
the bss_num and bss_type, but without checking if the priv is actually
currently in use.
Unused priv pointers do not have a wiphy attached to them which can
lead to NULL pointer dereferences further down the callstack. Fix
this by returning only used priv pointers which have priv->bss_mode
set to something else than NL80211_IFTYPE_UNSPECIFIED.
Said NULL pointer dereference happened when an Accesspoint was started
with wpa_supplicant -i mlan0 with this config:
network={
ssid="somessid"
mode=2
frequency=2412
key_mgmt=WPA-PSK WPA-PSK-SHA256
proto=RSN
group=CCMP
pairwise=CCMP
psk="12345678"
}
When waiting for the AP to be established, interrupting wpa_supplicant
with <ctrl-c> and starting it again this happens:
| Unable to handle kernel NULL pointer dereference at virtual address 0000000000000140
| Mem abort info:
| ESR = 0x0000000096000004
| EC = 0x25: DABT (current EL), IL = 32 bits
| SET = 0, FnV = 0
| EA = 0, S1PTW = 0
| FSC = 0x04: level 0 translation fault
| Data abort info:
| ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
| CM = 0, WnR = 0, TnD = 0, TagAccess = 0
| GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
| user pgtable: 4k pages, 48-bit VAs, pgdp=0000000046d96000
| [0000000000000140] pgd=0000000000000000, p4d=0000000000000000
| Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
| Modules linked in: caam_jr caamhash_desc spidev caamalg_desc crypto_engine authenc libdes mwifiex_sdio
+mwifiex crct10dif_ce cdc_acm onboard_usb_hub fsl_imx8_ddr_perf imx8m_ddrc rtc_ds1307 lm75 rtc_snvs
+imx_sdma caam imx8mm_thermal spi_imx error imx_cpufreq_dt fuse ip_tables x_tables ipv6
| CPU: 0 PID: 8 Comm: kworker/0:1 Not tainted 6.9.0-00007-g937242013fce-dirty #18
| Hardware name: somemachine (DT)
| Workqueue: events sdio_irq_work
| pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
| pc : mwifiex_get_cfp+0xd8/0x15c [mwifiex]
| lr : mwifiex_get_cfp+0x34/0x15c [mwifiex]
| sp : ffff8000818b3a70
| x29: ffff8000818b3a70 x28: ffff000006bfd8a5 x27: 0000000000000004
| x26: 000000000000002c x25: 0000000000001511 x24: 0000000002e86bc9
| x23: ffff000006bfd996 x22: 0000000000000004 x21: ffff000007bec000
| x20: 000000000000002c x19: 0000000000000000 x18: 0000000000000000
| x17: 000000040044ffff x16: 00500072b5503510 x15: ccc283740681e517
| x14: 0201000101006d15 x13: 0000000002e8ff43 x12: 002c01000000ffb1
| x11: 0100000000000000 x10: 02e8ff43002c0100 x9 : 0000ffb100100157
| x8 : ffff000003d20000 x7 : 00000000000002f1 x6 : 00000000ffffe124
| x5 : 0000000000000001 x4 : 0000000000000003 x3 : 0000000000000000
| x2 : 0000000000000000 x1 : 0001000000011001 x0 : 0000000000000000
| Call trace:
| mwifiex_get_cfp+0xd8/0x15c [mwifiex]
| mwifiex_parse_single_response_buf+0x1d0/0x504 [mwifiex]
| mwifiex_handle_event_ext_scan_report+0x19c/0x2f8 [mwifiex]
| mwifiex_process_sta_event+0x298/0xf0c [mwifiex]
| mwifiex_process_event+0x110/0x238 [mwifiex]
| mwifiex_main_process+0x428/0xa44 [mwifiex]
| mwifiex_sdio_interrupt+0x64/0x12c [mwifiex_sdio]
| process_sdio_pending_irqs+0x64/0x1b8
| sdio_irq_work+0x4c/0x7c
| process_one_work+0x148/0x2a0
| worker_thread+0x2fc/0x40c
| kthread+0x110/0x114
| ret_from_fork+0x10/0x20
| Code: a94153f3 a8c37bfd d50323bf d65f03c0 (f940a000)
| ---[ end trace 0000000000000000 ]---
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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，该漏洞源于未正确验证数据的有效性。
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-2024-46755 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-46755 补丁与修复 (5)
同批安全公告 · Linux · 2024-09-18 · 共 85 条
| CVE-2024-46717 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46736 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46796 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46780 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46725 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46792 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46787 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46734 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46738 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46740 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46746 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46781 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46741 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46750 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46751 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46777 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46754 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46762 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46765 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46771 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 85 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-46755
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