201 lines
11 KiB
JSON
201 lines
11 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-43345",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-01T14:12:56.003Z",
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"datePublished": "2026-05-08T13:39:31.222Z",
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"dateUpdated": "2026-08-05T12:27:22.811Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:27:22.811Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipa: fix event ring index not programmed for IPA v5.0+\n\nFor IPA v5.0+, the event ring index field moved from CH_C_CNTXT_0 to\nCH_C_CNTXT_1. The v5.0 register definition intended to define this\nfield in the CH_C_CNTXT_1 fmask array but used the old identifier of\nERINDEX instead of CH_ERINDEX.\n\nWithout a valid event ring, GSI channels could never signal transfer\ncompletions. This caused gsi_channel_trans_quiesce() to block\nforever in wait_for_completion().\n\nAt least for IPA v5.2 this resolves an issue seen where runtime\nsuspend, system suspend, and remoteproc stop all hanged forever. It\nalso meant the IPA data path was completely non functional."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:N - The affected IPA/GSI channels are the Qualcomm modem/RMNet network data path, including AP receive channels driven by packets arriving from the cellular/network side. A remote peer can send traffic to a configured affected device without reaching any ioctl or local-only control interface.\nAC:L - The failure is deterministic on IPA v5.0+ hardware because the channel event-ring index is never encoded into CH_C_CNTXT_1. No race, heap shaping, or attacker-uncontrolled timing is needed once the affected channel is programmed and used.\nPR:N - For the remote packet/data-path scenario, the attacker does not need local credentials or kernel capabilities. The relevant receive path is packet-driven after the device and modem interface are configured by the system.\nUI:N - No victim action is required beyond the affected device being online with its IPA modem data path configured. Traffic or normal power-management transitions can exercise the broken completion path.\nS:U - The impact remains within the same kernel/device security authority. This is not a VM escape, IOMMU bypass, or cross-sandbox boundary violation.\nC:N - The bug is an incorrect hardware register field mask that prevents completion signaling; I found no out-of-bounds access, use-after-free, or attacker-readable memory exposure. The event rings are driver-allocated DMA rings, not an arbitrary disclosure primitive.\nI:N - The observed and code-supported impact is loss of completion signaling and broken data-path operation, not attacker-controlled modification of kernel memory or persistent data. There is no evident arbitrary write or control-flow corruption primitive.\nA:H - Missing completions cause waits such as gsi_channel_trans_quiesce() to block forever, hanging runtime suspend, system suspend, and remoteproc stop. The IPA data path can also become completely nonfunctional, so availability impact is high."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ipa/reg/gsi_reg-v5.0.c"
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],
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"versions": [
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{
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"version": "faf0678ec8a0aa9039d8b188d012206abd67dd5c",
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"lessThan": "ae8343a19ccb051d519dbb3a9082ddea9f0551d3",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "faf0678ec8a0aa9039d8b188d012206abd67dd5c",
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"lessThan": "2bf18b643c4656413f7cfd5615af60a6b4e261da",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "faf0678ec8a0aa9039d8b188d012206abd67dd5c",
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"lessThan": "2d2dc166d55148cfcf8ae67b415f8d6d110e6fca",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "faf0678ec8a0aa9039d8b188d012206abd67dd5c",
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"lessThan": "34c988bb04cbdf093d2134e179433da49ffcd044",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "faf0678ec8a0aa9039d8b188d012206abd67dd5c",
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"lessThan": "56007972c0b1e783ca714d6f1f4d6e66e531d21f",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ipa/reg/gsi_reg-v5.0.c"
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],
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"versions": [
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{
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"version": "6.4",
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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": "6.4",
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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": "6.6.136",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.83",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.24",
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"lessThanOrEqual": "6.18.*",
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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": "6.19.14",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "6.6.136"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "6.12.83"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "6.18.24"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "6.19.14"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "7.0"
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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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{
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"url": "https://git.kernel.org/stable/c/ae8343a19ccb051d519dbb3a9082ddea9f0551d3"
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},
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{
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"url": "https://git.kernel.org/stable/c/2bf18b643c4656413f7cfd5615af60a6b4e261da"
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},
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{
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"url": "https://git.kernel.org/stable/c/2d2dc166d55148cfcf8ae67b415f8d6d110e6fca"
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},
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{
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"url": "https://git.kernel.org/stable/c/34c988bb04cbdf093d2134e179433da49ffcd044"
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},
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{
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"url": "https://git.kernel.org/stable/c/56007972c0b1e783ca714d6f1f4d6e66e531d21f"
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}
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],
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"title": "net: ipa: fix event ring index not programmed for IPA v5.0+",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |