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cvelist/2022/49xxx/CVE-2022-49649.json

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"-Synchronized-Data."
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{
"-Synchronized-Data."
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"data_version": "4.0",
"-Synchronized-Data."
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"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2022-49649",
"-Synchronized-Data."
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"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
"-Synchronized-Data."
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},
"description": {
"description_data": [
{
"lang": "eng",
"-Synchronized-Data."
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue\n\nxenvif_rx_next_skb() is expecting the rx queue not being empty, but\nin case the loop in xenvif_rx_action() is doing multiple iterations,\nthe availability of another skb in the rx queue is not being checked.\n\nThis can lead to crashes:\n\n[40072.537261] BUG: unable to handle kernel NULL pointer dereference at 0000000000000080\n[40072.537407] IP: xenvif_rx_skb+0x23/0x590 [xen_netback]\n[40072.537534] PGD 0 P4D 0\n[40072.537644] Oops: 0000 [#1] SMP NOPTI\n[40072.537749] CPU: 0 PID: 12505 Comm: v1-c40247-q2-gu Not tainted 4.12.14-122.121-default #1 SLE12-SP5\n[40072.537867] Hardware name: HP ProLiant DL580 Gen9/ProLiant DL580 Gen9, BIOS U17 11/23/2021\n[40072.537999] task: ffff880433b38100 task.stack: ffffc90043d40000\n[40072.538112] RIP: e030:xenvif_rx_skb+0x23/0x590 [xen_netback]\n[40072.538217] RSP: e02b:ffffc90043d43de0 EFLAGS: 00010246\n[40072.538319] RAX: 0000000000000000 RBX: ffffc90043cd7cd0 RCX: 00000000000000f7\n[40072.538430] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffffc90043d43df8\n[40072.538531] RBP: 000000000000003f R08: 000077ff80000000 R09: 0000000000000008\n[40072.538644] R10: 0000000000007ff0 R11: 00000000000008f6 R12: ffffc90043ce2708\n[40072.538745] R13: 0000000000000000 R14: ffffc90043d43ed0 R15: ffff88043ea748c0\n[40072.538861] FS: 0000000000000000(0000) GS:ffff880484600000(0000) knlGS:0000000000000000\n[40072.538988] CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033\n[40072.539088] CR2: 0000000000000080 CR3: 0000000407ac8000 CR4: 0000000000040660\n[40072.539211] Call Trace:\n[40072.539319] xenvif_rx_action+0x71/0x90 [xen_netback]\n[40072.539429] xenvif_kthread_guest_rx+0x14a/0x29c [xen_netback]\n\nFix that by stopping the loop in case the rx queue becomes empty."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
"-Synchronized-Data."
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}
]
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},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "98f6d57ced73b723551568262019f1d6c8771f20",
"version_value": "c0fcceb5f3f1ec197c014fe218c2f28108cacd27"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "4.9",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.9",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.9.324",
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.289",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.253",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.207",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.132",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.56",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.18.13",
"lessThanOrEqual": "5.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.19",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/c0fcceb5f3f1ec197c014fe218c2f28108cacd27",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/c0fcceb5f3f1ec197c014fe218c2f28108cacd27"
},
{
"url": "https://git.kernel.org/stable/c/d5320c6a27aa975aff740f9cb481dcbde48f4348",
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"name": "https://git.kernel.org/stable/c/d5320c6a27aa975aff740f9cb481dcbde48f4348"
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{
"url": "https://git.kernel.org/stable/c/5a071aefd6414af5a20321ab58a0557b81993687",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/5a071aefd6414af5a20321ab58a0557b81993687"
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{
"url": "https://git.kernel.org/stable/c/7425479d20f9e96f7c3ec8e8a93fe0d7478724cb",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/7425479d20f9e96f7c3ec8e8a93fe0d7478724cb"
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{
"url": "https://git.kernel.org/stable/c/b9c32a6886af79d6e0ad87a7b01800ed079cdd02",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/b9c32a6886af79d6e0ad87a7b01800ed079cdd02"
},
{
"url": "https://git.kernel.org/stable/c/b99174ac57fe5d8867448c03b23828e63f24cb1c",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/b99174ac57fe5d8867448c03b23828e63f24cb1c"
},
{
"url": "https://git.kernel.org/stable/c/f0b5c819b062df8bf5f2acf4697e3871cb3722da",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/f0b5c819b062df8bf5f2acf4697e3871cb3722da"
},
{
"url": "https://git.kernel.org/stable/c/94e8100678889ab428e68acadf042de723f094b9",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/94e8100678889ab428e68acadf042de723f094b9"
}
]
},
"generator": {
"engine": "bippy-5f407fcff5a0"
"-Synchronized-Data."
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}
}
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