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Vulnerability · Published Feb 27, 2025 · Assigned by Linux

CVE-2025-21750wifi: brcmfmac: Check the return value of of_property_read_string_index()

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 89.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Check the return value of of_property_read_string_index() Somewhen between 6.10 and 6.11 the driver started to crash on my MacBookPro14,3. The property doesn't exist and 'tmp' remains uninitialized, so we pass a random pointer to devm_kstrdup(). The crash I am getting looks like this: BUG: unable to handle page fault for address: 00007f033c669379 PF: supervisor read access in kernel mode PF: error_code(0x0001) - permissions violation PGD 8000000101341067 P4D 8000000101341067 PUD 101340067 PMD 1013bb067 PTE 800000010aee9025 Oops: Oops: 0001 [#1] SMP PTI CPU: 4 UID: 0 PID: 827 Comm: (udev-worker) Not tainted 6.11.8-gentoo #1 Hardware name: Apple Inc. MacBookPro14,3/Mac-551B86E5744E2388, BIOS 529.140.2.0.0 06/23/2024 RIP: 0010:strlen+0x4/0x30 Code: f7 75 ec 31 c0 c3 cc cc cc cc 48 89 f8 c3 cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <80> 3f 00 74 14 48 89 f8 48 83 c0 01 80 38 00 75 f7 48 29 f8 c3 cc RSP: 0018:ffffb4aac0683ad8 EFLAGS: 00010202 RAX: 00000000ffffffea RBX: 00007f033c669379 RCX: 0000000000000001 RDX: 0000000000000cc0 RSI: 00007f033c669379 RDI: 00007f033c669379 RBP: 00000000ffffffea R08: 0000000000000000 R09: 00000000c0ba916a R10: ffffffffffffffff R11: ffffffffb61ea260 R12: ffff91f7815b50c8 R13: 0000000000000cc0 R14: ffff91fafefffe30 R15: ffffb4aac0683b30 FS: 00007f033ccbe8c0(0000) GS:ffff91faeed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f033c669379 CR3: 0000000107b1e004 CR4: 00000000003706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ? __die+0x23/0x70 ? page_fault_oops+0x149/0x4c0 ? raw_spin_rq_lock_nested+0xe/0x20 ? sched_balance_newidle+0x22b/0x3c0 ? update_load_avg+0x78/0x770 ? exc_page_fault+0x6f/0x150 ? asm_exc_page_fault+0x26/0x30 ? __pfx_pci_conf1_write+0x10/0x10 ? strlen+0x4/0x30 devm_kstrdup+0x25/0x70 brcmf_of_probe+0x273/0x350 [brcmfmac]

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.129-1DEBIAN-CVE-2025-21750
Debian:13linux6.12.15-1DEBIAN-CVE-2025-21750
Debian:14linux6.12.15-1DEBIAN-CVE-2025-21750
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux6.8.0-64.67UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-aws6.8.0-1032.34UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1032.34~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-azure6.8.0-1034.39UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1015.15~24.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1034.39~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1022.23UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-gcp6.8.0-1033.35UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1015.15~24.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1033.35~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-gke6.8.0-1028.32UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1015.17UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-26.26~24.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-64.67~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-ibm6.8.0-1029.29UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1029.29~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-64.67.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1014.15~24.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-64.67.1~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1031.34UBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1010.10UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1031.34~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1031.34.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1008.8UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1022.22UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1031.31UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-oracle6.8.0-1029.30UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1029.30~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-raspi6.8.0-1031.35UBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-64.67~22.04.1UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-21750
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2025-21750
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2025-21750

Affected products (as reported)

VendorProductVersions
Linux Linux 29e354ebeeecaee979e6fe22cd6272682d7552c9 – before af525a8b2ab85291617e79a5bb18bcdcb529e80c29e354ebeeecaee979e6fe22cd6272682d7552c9 – before c9480e9f2d10135476101619bcbd1c49c15d595f29e354ebeeecaee979e6fe22cd6272682d7552c9 – before 7ef2ea1429684d5cef207519bdf6ce45e50e8ac529e354ebeeecaee979e6fe22cd6272682d7552c9 – before bb8e35e33e79eb8e44396adbc8cb6c8c5f16b73129e354ebeeecaee979e6fe22cd6272682d7552c9 – before 082d9e263af8de68f0c34f67b251818205160f6e
Linux Linux 5.9

References