In the Linux kernel, the following vulnerability has been resolved:
usb: xhci: Check endpoint is valid before dereferencing it
When the host controller is not responding, all URBs queued to all endpoints need to be killed. This can cause a kernel panic if we dereference an invalid endpoint.
Fix this by using xhcigetvirt_ep() helper to find the endpoint and checking if the endpoint is valid before dereferencing it.
[233311.853271] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead [233311.853393] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000e8
[233311.853964] pc : xhcihcdied+0x10c/0x270 [233311.853971] lr : xhcihcdied+0x1ac/0x270
[233311.854077] Call trace: [233311.854085] xhcihcdied+0x10c/0x270 [233311.854093] xhcistopendpointcommandwatchdog+0x100/0x1a4 [233311.854105] calltimerfn+0x50/0x2d4 [233311.854112] expiretimers+0xac/0x2e4 [233311.854118] runtimersoftirq+0x300/0xabc [233311.854127] _dosoftirq+0x148/0x528 [233311.854135] irqexit+0x194/0x1a8 [233311.854143] _handledomainirq+0x164/0x1d0 [233311.854149] gichandleirq.22273+0x10c/0x188 [233311.854156] el1irq+0xfc/0x1a8 [233311.854175] lpmcpuidleenter+0x25c/0x418 [msmpm] [233311.854185] cpuidleenterstate+0x1f0/0x764 [233311.854194] doidle+0x594/0x6ac [233311.854201] cpustartupentry+0x7c/0x80 [233311.854209] secondarystartkernel+0x170/0x198
[
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2d2820d5f375563690c96e60676855205abfb7f5",
"digest": {
"function_hash": "252807901606248340505532117146721282249",
"length": 997.0
},
"target": {
"function": "xhci_kill_endpoint_urbs",
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-0a208f4d",
"signature_version": "v1",
"signature_type": "Function"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@08864dc14a6803f0377ca77b9740b26db30c020f",
"digest": {
"line_hashes": [
"249468286984735880962277421717107830946",
"29715624470317988493941185004635762086",
"232548888788479503942843666455749136033",
"127741660602716603331429495836900705696"
],
"threshold": 0.9
},
"target": {
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-11a0136e",
"signature_version": "v1",
"signature_type": "Line"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@66fc1600855c05c4ba4e997184c91cf298e0405c",
"digest": {
"function_hash": "252807901606248340505532117146721282249",
"length": 997.0
},
"target": {
"function": "xhci_kill_endpoint_urbs",
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-1e76fcae",
"signature_version": "v1",
"signature_type": "Function"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9891e5c73cab3fd9ed532dc50e9799e55e974766",
"digest": {
"line_hashes": [
"249468286984735880962277421717107830946",
"29715624470317988493941185004635762086",
"232548888788479503942843666455749136033",
"127741660602716603331429495836900705696"
],
"threshold": 0.9
},
"target": {
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-237b9f7f",
"signature_version": "v1",
"signature_type": "Line"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9891e5c73cab3fd9ed532dc50e9799e55e974766",
"digest": {
"function_hash": "252807901606248340505532117146721282249",
"length": 997.0
},
"target": {
"function": "xhci_kill_endpoint_urbs",
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-261c8bf4",
"signature_version": "v1",
"signature_type": "Function"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@375be2dd61a072f7b1cac9b17eea59e07b58db3a",
"digest": {
"function_hash": "252807901606248340505532117146721282249",
"length": 997.0
},
"target": {
"function": "xhci_kill_endpoint_urbs",
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-26b8a375",
"signature_version": "v1",
"signature_type": "Function"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@375be2dd61a072f7b1cac9b17eea59e07b58db3a",
"digest": {
"line_hashes": [
"249468286984735880962277421717107830946",
"29715624470317988493941185004635762086",
"232548888788479503942843666455749136033",
"127741660602716603331429495836900705696"
],
"threshold": 0.9
},
"target": {
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-320de127",
"signature_version": "v1",
"signature_type": "Line"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@66fc1600855c05c4ba4e997184c91cf298e0405c",
"digest": {
"line_hashes": [
"249468286984735880962277421717107830946",
"29715624470317988493941185004635762086",
"232548888788479503942843666455749136033",
"127741660602716603331429495836900705696"
],
"threshold": 0.9
},
"target": {
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-701aa141",
"signature_version": "v1",
"signature_type": "Line"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f39c813af0b64f44af94e435c07bfa1ddc2575f5",
"digest": {
"function_hash": "252807901606248340505532117146721282249",
"length": 997.0
},
"target": {
"function": "xhci_kill_endpoint_urbs",
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-78950239",
"signature_version": "v1",
"signature_type": "Function"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@08864dc14a6803f0377ca77b9740b26db30c020f",
"digest": {
"function_hash": "252807901606248340505532117146721282249",
"length": 997.0
},
"target": {
"function": "xhci_kill_endpoint_urbs",
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-8fd82bc1",
"signature_version": "v1",
"signature_type": "Function"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2d2820d5f375563690c96e60676855205abfb7f5",
"digest": {
"line_hashes": [
"249468286984735880962277421717107830946",
"29715624470317988493941185004635762086",
"232548888788479503942843666455749136033",
"127741660602716603331429495836900705696"
],
"threshold": 0.9
},
"target": {
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-ad6b2c5c",
"signature_version": "v1",
"signature_type": "Line"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f39c813af0b64f44af94e435c07bfa1ddc2575f5",
"digest": {
"line_hashes": [
"249468286984735880962277421717107830946",
"29715624470317988493941185004635762086",
"232548888788479503942843666455749136033",
"127741660602716603331429495836900705696"
],
"threshold": 0.9
},
"target": {
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-ae2ab500",
"signature_version": "v1",
"signature_type": "Line"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e8fb5bc76eb86437ab87002d4a36d6da02165654",
"digest": {
"line_hashes": [
"249468286984735880962277421717107830946",
"29715624470317988493941185004635762086",
"232548888788479503942843666455749136033",
"127741660602716603331429495836900705696"
],
"threshold": 0.9
},
"target": {
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-cdaed7d3",
"signature_version": "v1",
"signature_type": "Line"
},
{
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e8fb5bc76eb86437ab87002d4a36d6da02165654",
"digest": {
"function_hash": "252807901606248340505532117146721282249",
"length": 997.0
},
"target": {
"function": "xhci_kill_endpoint_urbs",
"file": "drivers/usb/host/xhci-ring.c"
},
"id": "CVE-2023-52901-e1603a40",
"signature_version": "v1",
"signature_type": "Function"
}
]