gsd-2021-47077
Vulnerability from gsd
Modified
2024-03-01 06:04
Details
In the Linux kernel, the following vulnerability has been resolved:
scsi: qedf: Add pointer checks in qedf_update_link_speed()
The following trace was observed:
[ 14.042059] Call Trace:
[ 14.042061] <IRQ>
[ 14.042068] qedf_link_update+0x144/0x1f0 [qedf]
[ 14.042117] qed_link_update+0x5c/0x80 [qed]
[ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed]
[ 14.042155] ? qed_set_ptt+0x70/0x80 [qed]
[ 14.042170] ? qed_set_ptt+0x70/0x80 [qed]
[ 14.042186] ? qed_rd+0x13/0x40 [qed]
[ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed]
[ 14.042221] ? qed_set_ptt+0x70/0x80 [qed]
[ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed]
[ 14.042245] tasklet_action_common.isra.14+0x5a/0x100
[ 14.042250] __do_softirq+0xe4/0x2f8
[ 14.042253] irq_exit+0xf7/0x100
[ 14.042255] do_IRQ+0x7f/0xd0
[ 14.042257] common_interrupt+0xf/0xf
[ 14.042259] </IRQ>
API qedf_link_update() is getting called from QED but by that time
shost_data is not initialised. This results in a NULL pointer dereference
when we try to dereference shost_data while updating supported_speeds.
Add a NULL pointer check before dereferencing shost_data.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-47077"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedf: Add pointer checks in qedf_update_link_speed()\n\nThe following trace was observed:\n\n [ 14.042059] Call Trace:\n [ 14.042061] \u003cIRQ\u003e\n [ 14.042068] qedf_link_update+0x144/0x1f0 [qedf]\n [ 14.042117] qed_link_update+0x5c/0x80 [qed]\n [ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed]\n [ 14.042155] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042170] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042186] ? qed_rd+0x13/0x40 [qed]\n [ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed]\n [ 14.042221] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed]\n [ 14.042245] tasklet_action_common.isra.14+0x5a/0x100\n [ 14.042250] __do_softirq+0xe4/0x2f8\n [ 14.042253] irq_exit+0xf7/0x100\n [ 14.042255] do_IRQ+0x7f/0xd0\n [ 14.042257] common_interrupt+0xf/0xf\n [ 14.042259] \u003c/IRQ\u003e\n\nAPI qedf_link_update() is getting called from QED but by that time\nshost_data is not initialised. This results in a NULL pointer dereference\nwhen we try to dereference shost_data while updating supported_speeds.\n\nAdd a NULL pointer check before dereferencing shost_data.",
"id": "GSD-2021-47077",
"modified": "2024-03-01T06:04:48.321089Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@kernel.org",
"ID": "CVE-2021-47077",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "61d8658b4a43",
"version_value": "a6362a737572"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"defaultStatus": "affected",
"versions": [
{
"status": "affected",
"version": "4.11"
},
{
"lessThan": "4.11",
"status": "unaffected",
"version": "0",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.40",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.12.*",
"status": "unaffected",
"version": "5.12.7",
"versionType": "custom"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.13",
"versionType": "original_commit_for_fix"
}
]
}
}
]
}
}
]
},
"vendor_name": "Linux"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedf: Add pointer checks in qedf_update_link_speed()\n\nThe following trace was observed:\n\n [ 14.042059] Call Trace:\n [ 14.042061] \u003cIRQ\u003e\n [ 14.042068] qedf_link_update+0x144/0x1f0 [qedf]\n [ 14.042117] qed_link_update+0x5c/0x80 [qed]\n [ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed]\n [ 14.042155] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042170] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042186] ? qed_rd+0x13/0x40 [qed]\n [ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed]\n [ 14.042221] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed]\n [ 14.042245] tasklet_action_common.isra.14+0x5a/0x100\n [ 14.042250] __do_softirq+0xe4/0x2f8\n [ 14.042253] irq_exit+0xf7/0x100\n [ 14.042255] do_IRQ+0x7f/0xd0\n [ 14.042257] common_interrupt+0xf/0xf\n [ 14.042259] \u003c/IRQ\u003e\n\nAPI qedf_link_update() is getting called from QED but by that time\nshost_data is not initialised. This results in a NULL pointer dereference\nwhen we try to dereference shost_data while updating supported_speeds.\n\nAdd a NULL pointer check before dereferencing shost_data."
}
]
},
"generator": {
"engine": "bippy-4986f5686161"
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f"
},
{
"name": "https://git.kernel.org/stable/c/11014efcec378bb0050a6cf08eaf375e3693400a",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/11014efcec378bb0050a6cf08eaf375e3693400a"
},
{
"name": "https://git.kernel.org/stable/c/73578af92a0fae6609b955fcc9113e50e413c80f",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/73578af92a0fae6609b955fcc9113e50e413c80f"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedf: Add pointer checks in qedf_update_link_speed()\n\nThe following trace was observed:\n\n [ 14.042059] Call Trace:\n [ 14.042061] \u003cIRQ\u003e\n [ 14.042068] qedf_link_update+0x144/0x1f0 [qedf]\n [ 14.042117] qed_link_update+0x5c/0x80 [qed]\n [ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed]\n [ 14.042155] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042170] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042186] ? qed_rd+0x13/0x40 [qed]\n [ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed]\n [ 14.042221] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed]\n [ 14.042245] tasklet_action_common.isra.14+0x5a/0x100\n [ 14.042250] __do_softirq+0xe4/0x2f8\n [ 14.042253] irq_exit+0xf7/0x100\n [ 14.042255] do_IRQ+0x7f/0xd0\n [ 14.042257] common_interrupt+0xf/0xf\n [ 14.042259] \u003c/IRQ\u003e\n\nAPI qedf_link_update() is getting called from QED but by that time\nshost_data is not initialised. This results in a NULL pointer dereference\nwhen we try to dereference shost_data while updating supported_speeds.\n\nAdd a NULL pointer check before dereferencing shost_data."
}
],
"id": "CVE-2021-47077",
"lastModified": "2024-03-01T22:22:25.913",
"metrics": {},
"published": "2024-03-01T22:15:47.283",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/11014efcec378bb0050a6cf08eaf375e3693400a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/73578af92a0fae6609b955fcc9113e50e413c80f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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