mirror of
https://github.com/CVEProject/cvelist.git
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124 lines
7.8 KiB
JSON
124 lines
7.8 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2022-48865",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix kernel panic when enabling bearer\n\nWhen enabling a bearer on a node, a kernel panic is observed:\n\n[ 4.498085] RIP: 0010:tipc_mon_prep+0x4e/0x130 [tipc]\n...\n[ 4.520030] Call Trace:\n[ 4.520689] <IRQ>\n[ 4.521236] tipc_link_build_proto_msg+0x375/0x750 [tipc]\n[ 4.522654] tipc_link_build_state_msg+0x48/0xc0 [tipc]\n[ 4.524034] __tipc_node_link_up+0xd7/0x290 [tipc]\n[ 4.525292] tipc_rcv+0x5da/0x730 [tipc]\n[ 4.526346] ? __netif_receive_skb_core+0xb7/0xfc0\n[ 4.527601] tipc_l2_rcv_msg+0x5e/0x90 [tipc]\n[ 4.528737] __netif_receive_skb_list_core+0x20b/0x260\n[ 4.530068] netif_receive_skb_list_internal+0x1bf/0x2e0\n[ 4.531450] ? dev_gro_receive+0x4c2/0x680\n[ 4.532512] napi_complete_done+0x6f/0x180\n[ 4.533570] virtnet_poll+0x29c/0x42e [virtio_net]\n...\n\nThe node in question is receiving activate messages in another\nthread after changing bearer status to allow message sending/\nreceiving in current thread:\n\n thread 1 | thread 2\n -------- | --------\n |\ntipc_enable_bearer() |\n test_and_set_bit_lock() |\n tipc_bearer_xmit_skb() |\n | tipc_l2_rcv_msg()\n | tipc_rcv()\n | __tipc_node_link_up()\n | tipc_link_build_state_msg()\n | tipc_link_build_proto_msg()\n | tipc_mon_prep()\n | {\n | ...\n | // null-pointer dereference\n | u16 gen = mon->dom_gen;\n | ...\n | }\n // Not being executed yet |\n tipc_mon_create() |\n { |\n ... |\n // allocate |\n mon = kzalloc(); |\n ... |\n } |\n\nMonitoring pointer in thread 2 is dereferenced before monitoring data\nis allocated in thread 1. This causes kernel panic.\n\nThis commit fixes it by allocating the monitoring data before enabling\nthe bearer to receive messages."
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "35c55c9877f8",
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"version_value": "2de76d37d4a6"
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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{
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"version": "4.8",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.8",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.106",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.29",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.16.15",
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"lessThanOrEqual": "5.16.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.17",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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],
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"defaultStatus": "affected"
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}
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}
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]
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}
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}
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]
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}
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}
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]
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}
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},
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"references": {
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"reference_data": [
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{
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"url": "https://git.kernel.org/stable/c/2de76d37d4a6dca9b96ea51da24d4290e6cfa1a5",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/2de76d37d4a6dca9b96ea51da24d4290e6cfa1a5"
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},
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{
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"url": "https://git.kernel.org/stable/c/f96dc3adb9a97b8f3dfdb88796483491a3006b71",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/f96dc3adb9a97b8f3dfdb88796483491a3006b71"
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},
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{
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"url": "https://git.kernel.org/stable/c/f4f59fdbc748805b08c13dae14c01f0518c77c94",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/f4f59fdbc748805b08c13dae14c01f0518c77c94"
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},
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{
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"url": "https://git.kernel.org/stable/c/be4977b847f5d5cedb64d50eaaf2218c3a55a3a3",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/be4977b847f5d5cedb64d50eaaf2218c3a55a3a3"
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}
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]
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},
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"generator": {
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"engine": "bippy-9e1c9544281a"
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}
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} |