Answer in brief
CVE-2025-21801 records a High severity (CVSS 7.8) vulnerability in net: ravb: Fix missing rtnl lock in suspend/resume path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <0296981941cf291edfbc318d3255a93439f368e4 || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <ad19522c007bb24ed874468f8baa1503c4662cf4 || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03 | 0296981941cf291edfbc318d3255a93439f368e4, ad19522c007bb24ed874468f8baa1503c4662cf4, 2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03 |
| Linux/Linuxgeneric | 4.9 | Not reported |
| Linux/Linuxgeneric | >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <6105f0d9cc7be8669c2eed24b88b4655d5c35e8c || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <0296981941cf291edfbc318d3255a93439f368e4 || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <ad19522c007bb24ed874468f8baa1503c4662cf4 || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03 | 6105f0d9cc7be8669c2eed24b88b4655d5c35e8c, 0296981941cf291edfbc318d3255a93439f368e4, ad19522c007bb24ed874468f8baa1503c4662cf4, 2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03 |
| Linux/Linuxgeneric | >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <5d45f5c51e676e3bcbfe49249499621d571287d4 || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <6105f0d9cc7be8669c2eed24b88b4655d5c35e8c || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <0296981941cf291edfbc318d3255a93439f368e4 || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <ad19522c007bb24ed874468f8baa1503c4662cf4 || >=0184165b2f42c4b032da9dd11546bfbaeb5afd4e <2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03 | 5d45f5c51e676e3bcbfe49249499621d571287d4, 6105f0d9cc7be8669c2eed24b88b4655d5c35e8c, 0296981941cf291edfbc318d3255a93439f368e4, ad19522c007bb24ed874468f8baa1503c4662cf4, 2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03 |
Published upstream
Feb 27, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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
Quoted source text, attributed separately from HOL analysis.