CVE-2025-21801 (GCVE-0-2025-21801)
Vulnerability from cvelistv5
Published
2025-02-27 20:00
Modified
2025-05-04 07:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/renesas/ravb_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "0296981941cf291edfbc318d3255a93439f368e4",
"status": "affected",
"version": "0184165b2f42c4b032da9dd11546bfbaeb5afd4e",
"versionType": "git"
},
{
"lessThan": "ad19522c007bb24ed874468f8baa1503c4662cf4",
"status": "affected",
"version": "0184165b2f42c4b032da9dd11546bfbaeb5afd4e",
"versionType": "git"
},
{
"lessThan": "2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03",
"status": "affected",
"version": "0184165b2f42c4b032da9dd11546bfbaeb5afd4e",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/renesas/ravb_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.9"
},
{
"lessThan": "4.9",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.13",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.13.*",
"status": "unaffected",
"version": "6.13.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.13",
"versionStartIncluding": "4.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.13.2",
"versionStartIncluding": "4.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.14",
"versionStartIncluding": "4.9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ravb: Fix missing rtnl lock in suspend/resume path\n\nFix the suspend/resume path by ensuring the rtnl lock is held where\nrequired. Calls to ravb_open, ravb_close and wol operations must be\nperformed under the rtnl lock to prevent conflicts with ongoing ndo\noperations.\n\nWithout this fix, the following warning is triggered:\n[ 39.032969] =============================\n[ 39.032983] WARNING: suspicious RCU usage\n[ 39.033019] -----------------------------\n[ 39.033033] drivers/net/phy/phy_device.c:2004 suspicious\nrcu_dereference_protected() usage!\n...\n[ 39.033597] stack backtrace:\n[ 39.033613] CPU: 0 UID: 0 PID: 174 Comm: python3 Not tainted\n6.13.0-rc7-next-20250116-arm64-renesas-00002-g35245dfdc62c #7\n[ 39.033623] Hardware name: Renesas SMARC EVK version 2 based on\nr9a08g045s33 (DT)\n[ 39.033628] Call trace:\n[ 39.033633] show_stack+0x14/0x1c (C)\n[ 39.033652] dump_stack_lvl+0xb4/0xc4\n[ 39.033664] dump_stack+0x14/0x1c\n[ 39.033671] lockdep_rcu_suspicious+0x16c/0x22c\n[ 39.033682] phy_detach+0x160/0x190\n[ 39.033694] phy_disconnect+0x40/0x54\n[ 39.033703] ravb_close+0x6c/0x1cc\n[ 39.033714] ravb_suspend+0x48/0x120\n[ 39.033721] dpm_run_callback+0x4c/0x14c\n[ 39.033731] device_suspend+0x11c/0x4dc\n[ 39.033740] dpm_suspend+0xdc/0x214\n[ 39.033748] dpm_suspend_start+0x48/0x60\n[ 39.033758] suspend_devices_and_enter+0x124/0x574\n[ 39.033769] pm_suspend+0x1ac/0x274\n[ 39.033778] state_store+0x88/0x124\n[ 39.033788] kobj_attr_store+0x14/0x24\n[ 39.033798] sysfs_kf_write+0x48/0x6c\n[ 39.033808] kernfs_fop_write_iter+0x118/0x1a8\n[ 39.033817] vfs_write+0x27c/0x378\n[ 39.033825] ksys_write+0x64/0xf4\n[ 39.033833] __arm64_sys_write+0x18/0x20\n[ 39.033841] invoke_syscall+0x44/0x104\n[ 39.033852] el0_svc_common.constprop.0+0xb4/0xd4\n[ 39.033862] do_el0_svc+0x18/0x20\n[ 39.033870] el0_svc+0x3c/0xf0\n[ 39.033880] el0t_64_sync_handler+0xc0/0xc4\n[ 39.033888] el0t_64_sync+0x154/0x158\n[ 39.041274] ravb 11c30000.ethernet eth0: Link is Down"
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T07:21:30.922Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/0296981941cf291edfbc318d3255a93439f368e4"
},
{
"url": "https://git.kernel.org/stable/c/ad19522c007bb24ed874468f8baa1503c4662cf4"
},
{
"url": "https://git.kernel.org/stable/c/2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03"
}
],
"title": "net: ravb: Fix missing rtnl lock in suspend/resume path",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-21801",
"datePublished": "2025-02-27T20:00:55.572Z",
"dateReserved": "2024-12-29T08:45:45.770Z",
"dateUpdated": "2025-05-04T07:21:30.922Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-21801\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-27T20:16:02.753\",\"lastModified\":\"2025-02-27T20:16:02.753\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: ravb: Fix missing rtnl lock in suspend/resume path\\n\\nFix the suspend/resume path by ensuring the rtnl lock is held where\\nrequired. Calls to ravb_open, ravb_close and wol operations must be\\nperformed under the rtnl lock to prevent conflicts with ongoing ndo\\noperations.\\n\\nWithout this fix, the following warning is triggered:\\n[ 39.032969] =============================\\n[ 39.032983] WARNING: suspicious RCU usage\\n[ 39.033019] -----------------------------\\n[ 39.033033] drivers/net/phy/phy_device.c:2004 suspicious\\nrcu_dereference_protected() usage!\\n...\\n[ 39.033597] stack backtrace:\\n[ 39.033613] CPU: 0 UID: 0 PID: 174 Comm: python3 Not tainted\\n6.13.0-rc7-next-20250116-arm64-renesas-00002-g35245dfdc62c #7\\n[ 39.033623] Hardware name: Renesas SMARC EVK version 2 based on\\nr9a08g045s33 (DT)\\n[ 39.033628] Call trace:\\n[ 39.033633] show_stack+0x14/0x1c (C)\\n[ 39.033652] dump_stack_lvl+0xb4/0xc4\\n[ 39.033664] dump_stack+0x14/0x1c\\n[ 39.033671] lockdep_rcu_suspicious+0x16c/0x22c\\n[ 39.033682] phy_detach+0x160/0x190\\n[ 39.033694] phy_disconnect+0x40/0x54\\n[ 39.033703] ravb_close+0x6c/0x1cc\\n[ 39.033714] ravb_suspend+0x48/0x120\\n[ 39.033721] dpm_run_callback+0x4c/0x14c\\n[ 39.033731] device_suspend+0x11c/0x4dc\\n[ 39.033740] dpm_suspend+0xdc/0x214\\n[ 39.033748] dpm_suspend_start+0x48/0x60\\n[ 39.033758] suspend_devices_and_enter+0x124/0x574\\n[ 39.033769] pm_suspend+0x1ac/0x274\\n[ 39.033778] state_store+0x88/0x124\\n[ 39.033788] kobj_attr_store+0x14/0x24\\n[ 39.033798] sysfs_kf_write+0x48/0x6c\\n[ 39.033808] kernfs_fop_write_iter+0x118/0x1a8\\n[ 39.033817] vfs_write+0x27c/0x378\\n[ 39.033825] ksys_write+0x64/0xf4\\n[ 39.033833] __arm64_sys_write+0x18/0x20\\n[ 39.033841] invoke_syscall+0x44/0x104\\n[ 39.033852] el0_svc_common.constprop.0+0xb4/0xd4\\n[ 39.033862] do_el0_svc+0x18/0x20\\n[ 39.033870] el0_svc+0x3c/0xf0\\n[ 39.033880] el0t_64_sync_handler+0xc0/0xc4\\n[ 39.033888] el0t_64_sync+0x154/0x158\\n[ 39.041274] ravb 11c30000.ethernet eth0: Link is Down\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ravb: Se corrige el bloqueo rtnl faltante en la ruta de suspensi\u00f3n/reanudaci\u00f3n Corrija la ruta de suspensi\u00f3n/reanudaci\u00f3n asegur\u00e1ndose de que el bloqueo rtnl se mantenga donde sea necesario. Las llamadas a las operaciones ravb_open, ravb_close y wol se deben realizar bajo el bloqueo rtnl para evitar conflictos con las operaciones ndo en curso. Sin esta correcci\u00f3n, se activa la siguiente advertencia: [ 39.032969] ============================= [ 39.032983] ADVERTENCIA: 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 \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0296981941cf291edfbc318d3255a93439f368e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad19522c007bb24ed874468f8baa1503c4662cf4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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