CVE-2025-38186 (GCVE-0-2025-38186)
Vulnerability from cvelistv5
Published
2025-07-04 13:37
Modified
2025-07-28 04:14
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start()
Before the commit under the Fixes tag below, bnxt_ulp_stop() and
bnxt_ulp_start() were always invoked in pairs. After that commit,
the new bnxt_ulp_restart() can be invoked after bnxt_ulp_stop()
has been called. This may result in the RoCE driver's aux driver
.suspend() method being invoked twice. The 2nd bnxt_re_suspend()
call will crash when it dereferences a NULL pointer:
(NULL ib_device): Handle device suspend call
BUG: kernel NULL pointer dereference, address: 0000000000000b78
PGD 0 P4D 0
Oops: Oops: 0000 [#1] SMP PTI
CPU: 20 UID: 0 PID: 181 Comm: kworker/u96:5 Tainted: G S 6.15.0-rc1 #4 PREEMPT(voluntary)
Tainted: [S]=CPU_OUT_OF_SPEC
Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017
Workqueue: bnxt_pf_wq bnxt_sp_task [bnxt_en]
RIP: 0010:bnxt_re_suspend+0x45/0x1f0 [bnxt_re]
Code: 8b 05 a7 3c 5b f5 48 89 44 24 18 31 c0 49 8b 5c 24 08 4d 8b 2c 24 e8 ea 06 0a f4 48 c7 c6 04 60 52 c0 48 89 df e8 1b ce f9 ff <48> 8b 83 78 0b 00 00 48 8b 80 38 03 00 00 a8 40 0f 85 b5 00 00 00
RSP: 0018:ffffa2e84084fd88 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffffb4b6b934 RDI: 00000000ffffffff
RBP: ffffa1760954c9c0 R08: 0000000000000000 R09: c0000000ffffdfff
R10: 0000000000000001 R11: ffffa2e84084fb50 R12: ffffa176031ef070
R13: ffffa17609775000 R14: ffffa17603adc180 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffffa17daa397000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000b78 CR3: 00000004aaa30003 CR4: 00000000003706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bnxt_ulp_stop+0x69/0x90 [bnxt_en]
bnxt_sp_task+0x678/0x920 [bnxt_en]
? __schedule+0x514/0xf50
process_scheduled_works+0x9d/0x400
worker_thread+0x11c/0x260
? __pfx_worker_thread+0x10/0x10
kthread+0xfe/0x1e0
? __pfx_kthread+0x10/0x10
ret_from_fork+0x2b/0x40
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
Check the BNXT_EN_FLAG_ULP_STOPPED flag and do not proceed if the flag
is already set. This will preserve the original symmetrical
bnxt_ulp_stop() and bnxt_ulp_start().
Also, inside bnxt_ulp_start(), clear the BNXT_EN_FLAG_ULP_STOPPED
flag after taking the mutex to avoid any race condition. And for
symmetry, only proceed in bnxt_ulp_start() if the
BNXT_EN_FLAG_ULP_STOPPED is set.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "6f2cd309492924b8afd2c62aebff815c1119d124",
"status": "affected",
"version": "3c163f35bd50314d4e70ed9e83e1d8d83c473325",
"versionType": "git"
},
{
"lessThan": "cca4ffd4a5b768752b91f6f75d77928e47886913",
"status": "affected",
"version": "3c163f35bd50314d4e70ed9e83e1d8d83c473325",
"versionType": "git"
},
{
"lessThan": "1e9ac33fa271be0d2480fd732f9642d81542500b",
"status": "affected",
"version": "3c163f35bd50314d4e70ed9e83e1d8d83c473325",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"lessThan": "6.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.35",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.35",
"versionStartIncluding": "6.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.4",
"versionStartIncluding": "6.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "6.10",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start()\n\nBefore the commit under the Fixes tag below, bnxt_ulp_stop() and\nbnxt_ulp_start() were always invoked in pairs. After that commit,\nthe new bnxt_ulp_restart() can be invoked after bnxt_ulp_stop()\nhas been called. This may result in the RoCE driver\u0027s aux driver\n.suspend() method being invoked twice. The 2nd bnxt_re_suspend()\ncall will crash when it dereferences a NULL pointer:\n\n(NULL ib_device): Handle device suspend call\nBUG: kernel NULL pointer dereference, address: 0000000000000b78\nPGD 0 P4D 0\nOops: Oops: 0000 [#1] SMP PTI\nCPU: 20 UID: 0 PID: 181 Comm: kworker/u96:5 Tainted: G S 6.15.0-rc1 #4 PREEMPT(voluntary)\nTainted: [S]=CPU_OUT_OF_SPEC\nHardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017\nWorkqueue: bnxt_pf_wq bnxt_sp_task [bnxt_en]\nRIP: 0010:bnxt_re_suspend+0x45/0x1f0 [bnxt_re]\nCode: 8b 05 a7 3c 5b f5 48 89 44 24 18 31 c0 49 8b 5c 24 08 4d 8b 2c 24 e8 ea 06 0a f4 48 c7 c6 04 60 52 c0 48 89 df e8 1b ce f9 ff \u003c48\u003e 8b 83 78 0b 00 00 48 8b 80 38 03 00 00 a8 40 0f 85 b5 00 00 00\nRSP: 0018:ffffa2e84084fd88 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001\nRDX: 0000000000000000 RSI: ffffffffb4b6b934 RDI: 00000000ffffffff\nRBP: ffffa1760954c9c0 R08: 0000000000000000 R09: c0000000ffffdfff\nR10: 0000000000000001 R11: ffffa2e84084fb50 R12: ffffa176031ef070\nR13: ffffa17609775000 R14: ffffa17603adc180 R15: 0000000000000000\nFS: 0000000000000000(0000) GS:ffffa17daa397000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000b78 CR3: 00000004aaa30003 CR4: 00000000003706f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003cTASK\u003e\nbnxt_ulp_stop+0x69/0x90 [bnxt_en]\nbnxt_sp_task+0x678/0x920 [bnxt_en]\n? __schedule+0x514/0xf50\nprocess_scheduled_works+0x9d/0x400\nworker_thread+0x11c/0x260\n? __pfx_worker_thread+0x10/0x10\nkthread+0xfe/0x1e0\n? __pfx_kthread+0x10/0x10\nret_from_fork+0x2b/0x40\n? __pfx_kthread+0x10/0x10\nret_from_fork_asm+0x1a/0x30\n\nCheck the BNXT_EN_FLAG_ULP_STOPPED flag and do not proceed if the flag\nis already set. This will preserve the original symmetrical\nbnxt_ulp_stop() and bnxt_ulp_start().\n\nAlso, inside bnxt_ulp_start(), clear the BNXT_EN_FLAG_ULP_STOPPED\nflag after taking the mutex to avoid any race condition. And for\nsymmetry, only proceed in bnxt_ulp_start() if the\nBNXT_EN_FLAG_ULP_STOPPED is set."
}
],
"providerMetadata": {
"dateUpdated": "2025-07-28T04:14:31.116Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/6f2cd309492924b8afd2c62aebff815c1119d124"
},
{
"url": "https://git.kernel.org/stable/c/cca4ffd4a5b768752b91f6f75d77928e47886913"
},
{
"url": "https://git.kernel.org/stable/c/1e9ac33fa271be0d2480fd732f9642d81542500b"
}
],
"title": "bnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38186",
"datePublished": "2025-07-04T13:37:12.484Z",
"dateReserved": "2025-04-16T04:51:23.992Z",
"dateUpdated": "2025-07-28T04:14:31.116Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38186\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-04T14:15:25.520\",\"lastModified\":\"2025-07-08T16:18:53.607\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbnxt_en: Fix double invocation of bnxt_ulp_stop()/bnxt_ulp_start()\\n\\nBefore the commit under the Fixes tag below, bnxt_ulp_stop() and\\nbnxt_ulp_start() were always invoked in pairs. After that commit,\\nthe new bnxt_ulp_restart() can be invoked after bnxt_ulp_stop()\\nhas been called. This may result in the RoCE driver\u0027s aux driver\\n.suspend() method being invoked twice. The 2nd bnxt_re_suspend()\\ncall will crash when it dereferences a NULL pointer:\\n\\n(NULL ib_device): Handle device suspend call\\nBUG: kernel NULL pointer dereference, address: 0000000000000b78\\nPGD 0 P4D 0\\nOops: Oops: 0000 [#1] SMP PTI\\nCPU: 20 UID: 0 PID: 181 Comm: kworker/u96:5 Tainted: G S 6.15.0-rc1 #4 PREEMPT(voluntary)\\nTainted: [S]=CPU_OUT_OF_SPEC\\nHardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017\\nWorkqueue: bnxt_pf_wq bnxt_sp_task [bnxt_en]\\nRIP: 0010:bnxt_re_suspend+0x45/0x1f0 [bnxt_re]\\nCode: 8b 05 a7 3c 5b f5 48 89 44 24 18 31 c0 49 8b 5c 24 08 4d 8b 2c 24 e8 ea 06 0a f4 48 c7 c6 04 60 52 c0 48 89 df e8 1b ce f9 ff \u003c48\u003e 8b 83 78 0b 00 00 48 8b 80 38 03 00 00 a8 40 0f 85 b5 00 00 00\\nRSP: 0018:ffffa2e84084fd88 EFLAGS: 00010246\\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001\\nRDX: 0000000000000000 RSI: ffffffffb4b6b934 RDI: 00000000ffffffff\\nRBP: ffffa1760954c9c0 R08: 0000000000000000 R09: c0000000ffffdfff\\nR10: 0000000000000001 R11: ffffa2e84084fb50 R12: ffffa176031ef070\\nR13: ffffa17609775000 R14: ffffa17603adc180 R15: 0000000000000000\\nFS: 0000000000000000(0000) GS:ffffa17daa397000(0000) knlGS:0000000000000000\\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 0000000000000b78 CR3: 00000004aaa30003 CR4: 00000000003706f0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\nCall Trace:\\n\u003cTASK\u003e\\nbnxt_ulp_stop+0x69/0x90 [bnxt_en]\\nbnxt_sp_task+0x678/0x920 [bnxt_en]\\n? __schedule+0x514/0xf50\\nprocess_scheduled_works+0x9d/0x400\\nworker_thread+0x11c/0x260\\n? __pfx_worker_thread+0x10/0x10\\nkthread+0xfe/0x1e0\\n? __pfx_kthread+0x10/0x10\\nret_from_fork+0x2b/0x40\\n? __pfx_kthread+0x10/0x10\\nret_from_fork_asm+0x1a/0x30\\n\\nCheck the BNXT_EN_FLAG_ULP_STOPPED flag and do not proceed if the flag\\nis already set. This will preserve the original symmetrical\\nbnxt_ulp_stop() and bnxt_ulp_start().\\n\\nAlso, inside bnxt_ulp_start(), clear the BNXT_EN_FLAG_ULP_STOPPED\\nflag after taking the mutex to avoid any race condition. And for\\nsymmetry, only proceed in bnxt_ulp_start() if the\\nBNXT_EN_FLAG_ULP_STOPPED is set.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bnxt_en: Se corrige la doble invocaci\u00f3n de bnxt_ulp_stop()/bnxt_ulp_start(). Antes de la confirmaci\u00f3n bajo la etiqueta \\\"Correcciones\\\", bnxt_ulp_stop() y bnxt_ulp_start() siempre se invocaban en pares. Tras dicha confirmaci\u00f3n, se puede invocar el nuevo bnxt_ulp_restart() tras llamar a bnxt_ulp_stop(). Esto puede provocar que el m\u00e9todo .suspend() del controlador auxiliar del controlador RoCE se invoque dos veces. La segunda llamada bnxt_re_suspend() se bloquear\u00e1 cuando desreferencia un puntero NULL: (NULL ib_device): Manejar llamada de suspensi\u00f3n del dispositivo ERROR: kernel NULL pointer dereference, address: 0000000000000b78 PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP PTI CPU: 20 UID: 0 PID: 181 Comm: kworker/u96:5 Tainted: G S 6.15.0-rc1 #4 PREEMPT(voluntary) Tainted: [S]=CPU_OUT_OF_SPEC Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017 Workqueue: bnxt_pf_wq bnxt_sp_task [bnxt_en] RIP: 0010:bnxt_re_suspend+0x45/0x1f0 [bnxt_re] Code: 8b 05 a7 3c 5b f5 48 89 44 24 18 31 c0 49 8b 5c 24 08 4d 8b 2c 24 e8 ea 06 0a f4 48 c7 c6 04 60 52 c0 48 89 df e8 1b ce f9 ff \u0026lt;48\u0026gt; 8b 83 78 0b 00 00 48 8b 80 38 03 00 00 a8 40 0f 85 b5 00 00 00 RSP: 0018:ffffa2e84084fd88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffffb4b6b934 RDI: 00000000ffffffff RBP: ffffa1760954c9c0 R08: 0000000000000000 R09: c0000000ffffdfff R10: 0000000000000001 R11: ffffa2e84084fb50 R12: ffffa176031ef070 R13: ffffa17609775000 R14: ffffa17603adc180 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffa17daa397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000b78 CR3: 00000004aaa30003 CR4: 00000000003706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bnxt_ulp_stop+0x69/0x90 [bnxt_en] bnxt_sp_task+0x678/0x920 [bnxt_en] ? __schedule+0x514/0xf50 process_scheduled_works+0x9d/0x400 worker_thread+0x11c/0x260 ? __pfx_worker_thread+0x10/0x10 kthread+0xfe/0x1e0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2b/0x40 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 Compruebe el indicador BNXT_EN_FLAG_ULP_STOPPED y no contin\u00fae si ya est\u00e1 activado. Esto conservar\u00e1 las operaciones sim\u00e9tricas originales bnxt_ulp_stop() y bnxt_ulp_start(). Adem\u00e1s, dentro de bnxt_ulp_start(), borre el indicador BNXT_EN_FLAG_ULP_STOPPED despu\u00e9s de tomar el mutex para evitar cualquier condici\u00f3n de ejecuci\u00f3n. Y para la simetr\u00eda, solo proceda en bnxt_ulp_start() si BNXT_EN_FLAG_ULP_STOPPED est\u00e1 configurado.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1e9ac33fa271be0d2480fd732f9642d81542500b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6f2cd309492924b8afd2c62aebff815c1119d124\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cca4ffd4a5b768752b91f6f75d77928e47886913\",\"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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