CVE-2024-40911

一、漏洞信息
 漏洞编号：[CVE-2024-40911](https://nvd.nist.gov/vuln/detail/CVE-2024-40911)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0
 CVSS V3.0分值：
  BaseScore：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:wifi: cfg80211: Lock wiphy in cfg80211_get_stationWiphy should be locked before calling rdev_get_station() (see lockdepassert in ieee80211_get_station()).This fixes the following kernel NULL dereference: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050 Mem abort info:   ESR = 0x0000000096000006   EC = 0x25: DABT (current EL), IL = 32 bits   SET = 0, FnV = 0   EA = 0, S1PTW = 0   FSC = 0x06: level 2 translation fault Data abort info:   ISV = 0, ISS = 0x00000006   CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=0000000003001000 [0000000000000050] pgd=0800000002dca003, p4d=0800000002dca003, pud=08000000028e9003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] SMP Modules linked in: netconsole dwc3_meson_g12a dwc3_of_simple dwc3 ip_gre gre ath10k_pci ath10k_core ath9k ath9k_common ath9k_hw ath CPU: 0 PID: 1091 Comm: kworker/u8:0 Not tainted 6.4.0-02144-g565f9a3a7911-dirty #705 Hardware name: RPT (r1) (DT) Workqueue: bat_events batadv_v_elp_throughput_metric_update pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ath10k_sta_statistics+0x10/0x2dc [ath10k_core] lr : sta_set_sinfo+0xcc/0xbd4 sp : ffff000007b43ad0 x29: ffff000007b43ad0 x28: ffff0000071fa900 x27: ffff00000294ca98 x26: ffff000006830880 x25: ffff000006830880 x24: ffff00000294c000 x23: 0000000000000001 x22: ffff000007b43c90 x21: ffff800008898acc x20: ffff00000294c6e8 x19: ffff000007b43c90 x18: 0000000000000000 x17: 445946354d552d78 x16: 62661f7200000000 x15: 57464f445946354d x14: 0000000000000000 x13: 00000000000000e3 x12: d5f0acbcebea978e x11: 00000000000000e3 x10: 000000010048fe41 x9 : 0000000000000000 x8 : ffff000007b43d90 x7 : 000000007a1e2125 x6 : 0000000000000000 x5 : ffff0000024e0900 x4 : ffff800000a0250c x3 : ffff000007b43c90 x2 : ffff00000294ca98 x1 : ffff000006831920 x0 : 0000000000000000 Call trace:  ath10k_sta_statistics+0x10/0x2dc [ath10k_core]  sta_set_sinfo+0xcc/0xbd4  ieee80211_get_station+0x2c/0x44  cfg80211_get_station+0x80/0x154  batadv_v_elp_get_throughput+0x138/0x1fc  batadv_v_elp_throughput_metric_update+0x1c/0xa4  process_one_work+0x1ec/0x414  worker_thread+0x70/0x46c  kthread+0xdc/0xe0  ret_from_fork+0x10/0x20 Code: a9bb7bfd 910003fd a90153f3 f9411c40 (f9402814)This happens because STA has time to disconnect and reconnect beforebatadv_v_elp_throughput_metric_update() delayed work gets scheduled. Inthis situation, ath10k_sta_state() can be in the middle of resettingarsta data when the work queue get chance to be scheduled and ends upaccessing it. Locking wiphy prevents that.
 漏洞公开时间：2024-07-12 21:15:14
 漏洞创建时间：2024-07-15 13:48:29
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-40911
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/0ccc63958d8373e15a69f4f8069f3e78f7f3898a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/43e1eefb0b2094e2281150d87d09e8bc872b9fba |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/642f89daa34567d02f312d03e41523a894906dae |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/6d540b0317901535275020bd4ac44fac6439ca76 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/dfd84ce41663be9ca3f69bd657c45f49b69344d9 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-40911 | https://bugzilla.suse.com/show_bug.cgi?id=1227792 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-40911 | https://bugzilla.suse.com/show_bug.cgi?id=1227792 |
| suse_bugzilla | https://git.kernel.org/stable/c/0ccc63958d8373e15a69f4f8069f3e78f7f3898a | https://bugzilla.suse.com/show_bug.cgi?id=1227792 |
| suse_bugzilla | https://git.kernel.org/stable/c/43e1eefb0b2094e2281150d87d09e8bc872b9fba | https://bugzilla.suse.com/show_bug.cgi?id=1227792 |
| suse_bugzilla | https://git.kernel.org/stable/c/642f89daa34567d02f312d03e41523a894906dae | https://bugzilla.suse.com/show_bug.cgi?id=1227792 |
| suse_bugzilla | https://git.kernel.org/stable/c/6d540b0317901535275020bd4ac44fac6439ca76 | https://bugzilla.suse.com/show_bug.cgi?id=1227792 |
| suse_bugzilla | https://git.kernel.org/stable/c/dfd84ce41663be9ca3f69bd657c45f49b69344d9 | https://bugzilla.suse.com/show_bug.cgi?id=1227792 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-40911.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1227792 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-40911 | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://git.kernel.org/linus/642f89daa34567d02f312d03e41523a894906dae (6.10-rc3) | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://git.kernel.org/stable/c/dfd84ce41663be9ca3f69bd657c45f49b69344d9 | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://git.kernel.org/stable/c/6d540b0317901535275020bd4ac44fac6439ca76 | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://git.kernel.org/stable/c/0ccc63958d8373e15a69f4f8069f3e78f7f3898a | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://git.kernel.org/stable/c/43e1eefb0b2094e2281150d87d09e8bc872b9fba | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://git.kernel.org/stable/c/642f89daa34567d02f312d03e41523a894906dae | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-40911 | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-40911 | https://ubuntu.com/security/CVE-2024-40911 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-40911 | https://ubuntu.com/security/CVE-2024-40911 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-40911 |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/0ccc63958d8373e15a69f4f8069f3e78f7f3898a |  | nvd |
|  |  | https://git.kernel.org/stable/c/43e1eefb0b2094e2281150d87d09e8bc872b9fba |  | nvd |
|  |  | https://git.kernel.org/stable/c/642f89daa34567d02f312d03e41523a894906dae |  | nvd |
|  |  | https://git.kernel.org/stable/c/6d540b0317901535275020bd4ac44fac6439ca76 |  | nvd |
|  |  | https://git.kernel.org/stable/c/dfd84ce41663be9ca3f69bd657c45f49b69344d9 |  | nvd |
| linux |  | https://git.kernel.org/linus/642f89daa34567d02f312d03e41523a894906dae | https://git.kernel.org/linus/7406353d43c8e2faf478721e87aeb6f2f9685de0 | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  In the Linux kernel, the following vulnerability has been resolved:wifi: cfg80211: Lock wiphy in cfg80211_get_stationWiphy should be locked before calling rdev_get_station() (see lockdepassert in ieee80211_get_station()).This fixes the following kernel NULL dereference: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050 Mem abort info:   ESR = 0x0000000096000006   EC = 0x25: DABT (current EL), IL = 32 bits   SET = 0, FnV = 0   EA = 0, S1PTW = 0   FSC = 0x06: level 2 translation fault Data abort info:   ISV = 0, ISS = 0x00000006   CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=0000000003001000 [0000000000000050] pgd=0800000002dca003, p4d=0800000002dca003, pud=08000000028e9003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] SMP Modules linked in: netconsole dwc3_meson_g12a dwc3_of_simple dwc3 ip_gre gre ath10k_pci ath10k_core ath9k ath9k_common ath9k_hw ath CPU: 0 PID: 1091 Comm: kworker/u8:0 Not tainted 6.4.0-02144-g565f9a3a7911-dirty #705 Hardware name: RPT (r1) (DT) Workqueue: bat_events batadv_v_elp_throughput_metric_update pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ath10k_sta_statistics+0x10/0x2dc [ath10k_core] lr : sta_set_sinfo+0xcc/0xbd4 sp : ffff000007b43ad0 x29: ffff000007b43ad0 x28: ffff0000071fa900 x27: ffff00000294ca98 x26: ffff000006830880 x25: ffff000006830880 x24: ffff00000294c000 x23: 0000000000000001 x22: ffff000007b43c90 x21: ffff800008898acc x20: ffff00000294c6e8 x19: ffff000007b43c90 x18: 0000000000000000 x17: 445946354d552d78 x16: 62661f7200000000 x15: 57464f445946354d x14: 0000000000000000 x13: 00000000000000e3 x12: d5f0acbcebea978e x11: 00000000000000e3 x10: 000000010048fe41 x9 : 0000000000000000 x8 : ffff000007b43d90 x7 : 000000007a1e2125 x6 : 0000000000000000 x5 : ffff0000024e0900 x4 : ffff800000a0250c x3 : ffff000007b43c90 x2 : ffff00000294ca98 x1 : ffff000006831920 x0 : 0000000000000000 Call trace:  ath10k_sta_statistics+0x10/0x2dc [ath10k_core]  sta_set_sinfo+0xcc/0xbd4  ieee80211_get_station+0x2c/0x44  cfg80211_get_station+0x80/0x154  batadv_v_elp_get_throughput+0x138/0x1fc  batadv_v_elp_throughput_metric_update+0x1c/0xa4  process_one_work+0x1ec/0x414  worker_thread+0x70/0x46c  kthread+0xdc/0xe0  ret_from_fork+0x10/0x20 Code: a9bb7bfd 910003fd a90153f3 f9411c40 (f9402814)This happens because STA has time to disconnect and reconnect beforebatadv_v_elp_throughput_metric_update() delayed work gets scheduled. Inthis situation, ath10k_sta_state() can be in the middle of resettingarsta data when the work queue get chance to be scheduled and ends upaccessing it. Locking wiphy prevents that.
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-24.03-LTS(6.6.0):受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
3.openEuler-22.03-LTS-SP1(5.10.0):不受影响
4.openEuler-22.03-LTS-SP3(5.10.0):不受影响
5.openEuler-22.03-LTS-SP4(5.10.0):不受影响
6.master(6.1.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.1.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2076

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