180 lines
9.2 KiB
JSON
180 lines
9.2 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-2022-50137",
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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": "2025-06-18T10:57:27.422Z",
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"datePublished": "2025-06-18T11:03:00.899Z",
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"dateUpdated": "2026-08-05T08:57:31.640Z"
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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": "2026-08-05T08:57:31.640Z"
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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\nRDMA/irdma: Fix a window for use-after-free\n\nDuring a destroy CQ an interrupt may cause processing of a CQE after CQ\nresources are freed by irdma_cq_free_rsrc(). Fix this by moving the call\nto irdma_cq_free_rsrc() after the irdma_sc_cleanup_ceqes(), which is\ncalled under the cq_lock."
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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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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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:L - The bug is triggered by destroying an irdma completion queue through the RDMA verbs path (/dev/infiniband/uverbs* → ib_uverbs_destroy_cq → irdma_destroy_cq); no remote packet parser reaches this free path.\nAC:L - An attacker who owns the RDMA context controls both sides of the race—posting work to keep CEQ completions pending and concurrently destroying the CQ—so the window between irdma_cq_free_rsrc() and irdma_sc_cleanup_ceqes() can be hit reliably by retrying.\nPR:L - InfiniBand user verbs are intended for unprivileged processes, and creating/destroying a CQ requires only an RDMA uverbs context, not capabilities in the init user namespace.\nUI:N - The attacker performs the verbs operations themselves; no action by another user is required.\nS:U - The use-after-free corrupts kernel memory within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - Use-after-free of CQ resources while irdma_process_ceq()/irdma_sc_process_ceq() still handles CEQEs allows reclaim of freed DMA/slab state and attacker-controlled reads via the completion path.\nI:H - The same UAF lets the interrupt path operate on freed/reclaimed CQ state (including irdma_sc_cq_ack() doorbell writes and irdma_iwarp_ce_handler()'s indirect comp_handler call), enabling arbitrary write and control-flow hijack primitives.\nA:H - Even without full exploitation, processing CEQEs against freed CQ resources causes kernel oops/panic in interrupt/softirq context and takes the system down."
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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/infiniband/hw/irdma/verbs.c"
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],
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"versions": [
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{
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"version": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
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"lessThan": "92520864ef9f912f38b403d172a0ded020683d55",
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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": "b48c24c2d710cf34810c555dcef883a3d35a9c08",
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"lessThan": "0abf2eef80295923b819ce89ff9edc1fe61be17c",
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"status": "affected",
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},
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{
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"lessThan": "350ac793a03c8a30a3f2b27fc282cd1c67070763",
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"lessThan": "8ecef7890b3aea78c8bbb501a4b5b8134367b821",
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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/infiniband/hw/irdma/verbs.c"
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],
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"versions": [
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{
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"version": "5.14",
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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": "5.14",
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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": "5.15.61",
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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": "5.18.18",
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"lessThanOrEqual": "5.18.*",
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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": "5.19.2",
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"lessThanOrEqual": "5.19.*",
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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": "6.0",
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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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"negate": false,
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.14",
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"versionEndExcluding": "5.15.61"
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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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{
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"url": "https://git.kernel.org/stable/c/92520864ef9f912f38b403d172a0ded020683d55"
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},
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{
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"url": "https://git.kernel.org/stable/c/0abf2eef80295923b819ce89ff9edc1fe61be17c"
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},
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{
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"url": "https://git.kernel.org/stable/c/350ac793a03c8a30a3f2b27fc282cd1c67070763"
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},
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{
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"url": "https://git.kernel.org/stable/c/8ecef7890b3aea78c8bbb501a4b5b8134367b821"
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}
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],
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"title": "RDMA/irdma: Fix a window for use-after-free",
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} |