🛡️ UBUNTU-CVE-2025-21801
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: net: ravb: Fix missing rtnl lock in suspend/resume path Fix the suspend/resume path by ensuring the rtnl lock is held where required. Calls to ravb_open, ravb_close and wol operations must be performed under the rtnl lock to prevent conflicts with ongoing ndo operations. Without this fix, the following warning is triggered: [ 39.032969] ============================= [ 39.032983] WARNING: suspicious RCU usage [ 39.033019] ----------------------------- [ 39.033033] drivers/net/phy/phy_device.c:2004 suspicious rcu_dereference_protected() usage! ... [ 39.033597] stack backtrace: [ 39.033613] CPU: 0 UID: 0 PID: 174 Comm: python3 Not tainted 6.13.0-rc7-next-20250116-arm64-renesas-00002-g35245dfdc62c #7 [ 39.033623] Hardware name: Renesas SMARC EVK version 2 based on r9a08g045s33 (DT) [ 39.033628] Call trace: [ 39.033633] show_stack+0x14/0x1c (C) [ 39.033652] dump_stack_lvl+0xb4/0xc4 [ 39.033664] dump_stack+0x14/0x1c [ 39.033671] lockdep_rcu_suspicious+0x16c/0x22c [ 39.033682] phy_detach+0x160/0x190 [ 39.033694] phy_disconnect+0x40/0x54 [ 39.033703] ravb_close+0x6c/0x1cc [ 39.033714] ravb_suspend+0x48/0x120 [ 39.033721] dpm_run_callback+0x4c/0x14c [ 39.033731] device_suspend+0x11c/0x4dc [ 39.033740] dpm_suspend+0xdc/0x214 [ 39.033748] dpm_suspend_start+0x48/0x60 [ 39.033758] suspend_devices_and_enter+0x124/0x574 [ 39.033769] pm_suspend+0x1ac/0x274 [ 39.033778] state_store+0x88/0x124 [ 39.033788] kobj_attr_store+0x14/0x24 [ 39.033798] sysfs_kf_write+0x48/0x6c [ 39.033808] kernfs_fop_write_iter+0x118/0x1a8 [ 39.033817] vfs_write+0x27c/0x378 [ 39.033825] ksys_write+0x64/0xf4 [ 39.033833] __arm64_sys_write+0x18/0x20 [ 39.033841] invoke_syscall+0x44/0x104 [ 39.033852] el0_svc_common.constprop.0+0xb4/0xd4 [ 39.033862] do_el0_svc+0x18/0x20 [ 39.033870] el0_svc+0x3c/0xf0 [ 39.033880] el0t_64_sync_handler+0xc0/0xc4 [ 39.033888] el0t_64_sync+0x154/0x158 [ 39.041274] ravb 11c30000.ethernet eth0: Link is Down

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-02-27
Updated 2026-06-15
Modified 2026-06-08
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 6.8.0-64.67
linux-allwinner-5.19
linux-aws 6.8.0-1032.34
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4
linux-aws-5.8
linux-aws-6.2
linux-aws-6.5
linux-aws-6.8 6.8.0-1032.34~22.04.1
linux-aws-fips
linux-aws-hwe
linux-azure 6.8.0-1034.39
linux-azure-4.15
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4
linux-azure-5.8
linux-azure-6.11 6.11.0-1015.15~24.04.1
linux-azure-6.2
linux-azure-6.5
linux-azure-6.8 6.8.0-1034.39~22.04.1
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips
linux-azure-nvidia 6.8.0-1022.23
linux-bluefield
linux-fips 6.8.0-78.78+fips1
linux-gcp 6.8.0-1033.35
linux-gcp-4.15
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4
linux-gcp-5.8
linux-gcp-6.11 6.11.0-1015.15~24.04.1
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-6.8 6.8.0-1033.35~22.04.1
linux-gcp-fips
linux-gke 6.8.0-1028.32
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 6.8.0-1015.17
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15
linux-hwe-5.19
linux-hwe-5.4
linux-hwe-5.8
linux-hwe-6.11 6.11.0-26.26~24.04.1
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 6.8.0-64.67~22.04.1
linux-hwe-edge
linux-ibm 6.8.0-1029.29
linux-ibm-5.15
linux-ibm-5.4
linux-ibm-6.8 6.8.0-1029.29~22.04.1
linux-intel-5.13
linux-intel-iot-realtime
linux-intel-iotg
linux-intel-iotg-5.15
linux-iot
linux-kvm
linux-lowlatency 6.8.0-64.67.1
linux-lowlatency-hwe-5.15
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.11 6.11.0-1014.15~24.04.1
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 6.8.0-64.67.1~22.04.1
linux-nvidia 6.8.0-1031.34
linux-nvidia-6.11 6.11.0-1010.10
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-6.8 6.8.0-1031.34~22.04.1
linux-nvidia-lowlatency 6.8.0-1031.34.1
linux-nvidia-tegra 6.8.0-1008.8
linux-nvidia-tegra-5.15
linux-nvidia-tegra-igx
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.11 6.11.0-1022.22
linux-oem-6.5
linux-oem-6.8 6.8.0-1031.31
linux-oracle 6.8.0-1029.30
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15
linux-oracle-5.3
linux-oracle-5.4
linux-oracle-5.8
linux-oracle-6.5
linux-oracle-6.8 6.8.0-1029.30~22.04.1
linux-raspi 6.8.0-1031.35
linux-raspi-5.4
linux-raspi-realtime 6.8.0-2026.27
linux-raspi2
linux-realtime 6.8.1-1025.26
linux-realtime-6.8 6.8.1-1025.26~22.04.1
linux-riscv
linux-riscv-5.11
linux-riscv-5.15
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-riscv-6.8 6.8.0-64.67~22.04.1
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx 6.8.0-1017.18
linux-xilinx-zynqmp

References

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