CVE-2024-35811: wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach
First published: Fri May 17 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach This is the candidate patch of CVE-2023-47233 : https://nvd.nist.gov/vuln/detail/CVE-2023-47233 In brcm80211 driver,it starts with the following invoking chain to start init a timeout worker: ->brcmf_usb_probe ->brcmf_usb_probe_cb ->brcmf_attach ->brcmf_bus_started ->brcmf_cfg80211_attach ->wl_init_priv ->brcmf_init_escan ->INIT_WORK(&cfg->escan_timeout_work, brcmf_cfg80211_escan_timeout_worker); If we disconnect the USB by hotplug, it will call brcmf_usb_disconnect to make cleanup. The invoking chain is : brcmf_usb_disconnect ->brcmf_usb_disconnect_cb ->brcmf_detach ->brcmf_cfg80211_detach ->kfree(cfg); While the timeout woker may still be running. This will cause a use-after-free bug on cfg in brcmf_cfg80211_escan_timeout_worker. Fix it by deleting the timer and canceling the worker in brcmf_cfg80211_detach. [arend.vanspriel@broadcom.com: keep timer delete as is and cancel work just before free]
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/linux | <6.8.0-35.35 | 6.8.0-35.35 |
| ubuntu/linux | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-aws | <6.8.0-1009.9 | 6.8.0-1009.9 |
| ubuntu/linux-aws | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-aws-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-aws-5.4 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-aws-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-aws-fips | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-aws-hwe | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-azure | <6.8.0-1008.8 | 6.8.0-1008.8 |
| ubuntu/linux-azure | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-azure-4.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-azure-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-azure-5.4 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-azure-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-azure-fde | <5.15.0-1064.73.1 | 5.15.0-1064.73.1 |
| ubuntu/linux-azure-fde | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1064.73~20.04.1.1 | 5.15.0-1064.73~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-azure-fips | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-bluefield | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-fips | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gcp | <6.8.0-1008.9 | 6.8.0-1008.9 |
| ubuntu/linux-gcp | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gcp-4.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gcp-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gcp-5.4 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gcp-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gcp-fips | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gke | <6.8.0-1004.7 | 6.8.0-1004.7 |
| ubuntu/linux-gke | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gkeop | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-gkeop-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-hwe | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-hwe-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-hwe-5.4 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-hwe-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-ibm | <6.8.0-1006.6 | 6.8.0-1006.6 |
| ubuntu/linux-ibm | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-ibm-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-ibm-5.4 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-intel | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-intel-iotg | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1058.64~20.04.1 | 5.15.0-1058.64~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-iot | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-kvm | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-laptop | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-lowlatency | <6.8.0-35.35.1 | 6.8.0-35.35.1 |
| ubuntu/linux-lowlatency | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-lowlatency-hwe-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-lts-xenial | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-nvidia | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-nvidia-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-oem-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-oem-6.8 | <6.8.0-1006.6 | 6.8.0-1006.6 |
| ubuntu/linux-oem-6.8 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-oracle | <6.8.0-1006.6 | 6.8.0-1006.6 |
| ubuntu/linux-oracle | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-oracle-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-oracle-5.4 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-oracle-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-raspi | <6.8.0-1005.5 | 6.8.0-1005.5 |
| ubuntu/linux-raspi | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-raspi-5.4 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-riscv | <6.8.0-35.35.1 | 6.8.0-35.35.1 |
| ubuntu/linux-riscv | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-riscv-5.15 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-riscv-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-starfive | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-starfive-6.5 | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| ubuntu/linux-xilinx-zynqmp | <5.15.0-1030.34 | 5.15.0-1030.34 |
| ubuntu/linux-xilinx-zynqmp | <6.9~<6.8.3 | 6.9~ 6.8.3 |
| debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.10-1 |
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Reference Links
- https://git.kernel.org/stable/c/0a7591e14a8da794d0b93b5d1c6254ccb23adacb
- https://git.kernel.org/stable/c/0b812f706fd7090be74812101114a0e165b36744
- https://git.kernel.org/stable/c/0f7352557a35ab7888bc7831411ec8a3cbe20d78
- https://git.kernel.org/stable/c/190794848e2b9d15de92d502b6ac652806904f5a
- https://git.kernel.org/stable/c/202c503935042272e2f9e1bb549d5f69a8681169
- https://git.kernel.org/stable/c/6678a1e7d896c00030b31491690e8ddc9a90767a
- https://git.kernel.org/stable/c/8c36205123dc57349b59b4f1a2301eb278cbc731
- https://git.kernel.org/stable/c/8e3f03f4ef7c36091f46e7349096efb5a2cdb3a1
- https://git.kernel.org/stable/c/bacb8c3ab86dcd760c15903fcee58169bc3026aa
- https://launchpad.net/bugs/cve/CVE-2024-35811
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://git.kernel.org/linus/0f7352557a35ab7888bc7831411ec8a3cbe20d78
- https://security-tracker.debian.org/tracker/CVE-2024-35811
- https://www.cve.org/CVERecord?id=CVE-2024-35811
- https://git.kernel.org/linus/0f7352557a35ab7888bc7831411ec8a3cbe20d78 (6.9-rc1)
- https://ubuntu.com/security/notices/USN-6816-1
- https://ubuntu.com/security/notices/USN-6817-1
- https://ubuntu.com/security/notices/USN-6820-1
- https://ubuntu.com/security/notices/USN-6821-1
- https://ubuntu.com/security/notices/USN-6821-2
- https://ubuntu.com/security/notices/USN-6817-2
- https://ubuntu.com/security/notices/USN-6828-1
- https://ubuntu.com/security/notices/USN-6820-2
- https://ubuntu.com/security/notices/USN-6821-3
- https://ubuntu.com/security/notices/USN-6831-1
- https://ubuntu.com/security/notices/USN-6817-3
- https://ubuntu.com/security/notices/USN-6821-4
- https://ubuntu.com/security/notices/USN-6878-1
- https://nvd.nist.gov/vuln/detail/CVE-2024-35811
- https://git.kernel.org/linus/e756af5b30b008f6ffcfebf8ad0b477f6f225b62
- https://ubuntu.com/security/CVE-2024-35811
Parent vulnerabilities
(Appears in the following advisories)
- agent/title
- agent/severity
- agent/weakness
- agent/type
- collector/epss-latest
- source/FIRST
- agent/epss
- agent/remedy
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/description
- agent/event
- collector/nvd-api
- source/NVD
- agent/references
- agent/last-modified-date
- agent/tags
- collector/nvd-cve
- collector/mitre-cve
- source/MITRE
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/debian
- package-manager/ubuntu