gsd-2021-47080
Vulnerability from gsd
Modified
2024-03-01 06:04
Details
In the Linux kernel, the following vulnerability has been resolved:
RDMA/core: Prevent divide-by-zero error triggered by the user
The user_entry_size is supplied by the user and later used as a
denominator to calculate number of entries. The zero supplied by the user
will trigger the following divide-by-zero error:
divide error: 0000 [#1] SMP KASAN PTI
CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510
Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff <49> f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b
RSP: 0018:ffff88810416f828 EFLAGS: 00010246
RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d
RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000
RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f
R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0
FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0
ib_uverbs_cmd_verbs+0x1546/0x1940
ib_uverbs_ioctl+0x186/0x240
__x64_sys_ioctl+0x38a/0x1220
do_syscall_64+0x3f/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-47080"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff \u003c49\u003e f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n ib_uverbs_cmd_verbs+0x1546/0x1940\n ib_uverbs_ioctl+0x186/0x240\n __x64_sys_ioctl+0x38a/0x1220\n do_syscall_64+0x3f/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae",
"id": "GSD-2021-47080",
"modified": "2024-03-01T06:04:48.332774Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@kernel.org",
"ID": "CVE-2021-47080",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "9f85cbe50aa0",
"version_value": "66ab7fcdac34"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"defaultStatus": "affected",
"versions": [
{
"status": "affected",
"version": "5.10"
},
{
"lessThan": "5.10",
"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\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff \u003c49\u003e f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n ib_uverbs_cmd_verbs+0x1546/0x1940\n ib_uverbs_ioctl+0x186/0x240\n __x64_sys_ioctl+0x38a/0x1220\n do_syscall_64+0x3f/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae"
}
]
},
"generator": {
"engine": "bippy-4986f5686161"
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13"
},
{
"name": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a"
},
{
"name": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Prevent divide-by-zero error triggered by the user\n\nThe user_entry_size is supplied by the user and later used as a\ndenominator to calculate number of entries. The zero supplied by the user\nwill trigger the following divide-by-zero error:\n\n divide error: 0000 [#1] SMP KASAN PTI\n CPU: 4 PID: 497 Comm: c_repro Not tainted 5.13.0-rc1+ #281\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:ib_uverbs_handler_UVERBS_METHOD_QUERY_GID_TABLE+0x1b1/0x510\n Code: 87 59 03 00 00 e8 9f ab 1e ff 48 8d bd a8 00 00 00 e8 d3 70 41 ff 44 0f b7 b5 a8 00 00 00 e8 86 ab 1e ff 31 d2 4c 89 f0 31 ff \u003c49\u003e f7 f5 48 89 d6 48 89 54 24 10 48 89 04 24 e8 1b ad 1e ff 48 8b\n RSP: 0018:ffff88810416f828 EFLAGS: 00010246\n RAX: 0000000000000008 RBX: 1ffff1102082df09 RCX: ffffffff82183f3d\n RDX: 0000000000000000 RSI: ffff888105f2da00 RDI: 0000000000000000\n RBP: ffff88810416fa98 R08: 0000000000000001 R09: ffffed102082df5f\n R10: ffff88810416faf7 R11: ffffed102082df5e R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000008 R15: ffff88810416faf0\n FS: 00007f5715efa740(0000) GS:ffff88811a700000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000840 CR3: 000000010c2e0001 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n ? ib_uverbs_handler_UVERBS_METHOD_INFO_HANDLES+0x4b0/0x4b0\n ib_uverbs_cmd_verbs+0x1546/0x1940\n ib_uverbs_ioctl+0x186/0x240\n __x64_sys_ioctl+0x38a/0x1220\n do_syscall_64+0x3f/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae"
}
],
"id": "CVE-2021-47080",
"lastModified": "2024-03-01T22:22:25.913",
"metrics": {},
"published": "2024-03-01T22:15:47.433",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/54d87913f147a983589923c7f651f97de9af5be1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/66ab7fcdac34b890017f04f391507ef5b2b89a13"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e6871b4270c05f8b212e7d98aee82b357972c80a"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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- 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.