{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-47658", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-30T16:00:12.935Z", "datePublished": "2024-10-09T14:02:53.230Z", "dateUpdated": "2026-08-05T11:39:14.310Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:39:14.310Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: stm32/cryp - call finalize with bh disabled\n\nThe finalize operation in interrupt mode produce a produces a spinlock\nrecursion warning. The reason is the fact that BH must be disabled\nduring this process." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:N - The damaging consequence is reached through the IPsec ESP receive path — a remote peer's ESP packets drive `esp_input()`, whose completion callback `esp_input_done` → `xfrm_input_resume()` is invoked by the stm32-cryp threaded IRQ handler with BH enabled. The upstream engine check that this driver violates was itself added after the same failure was hit with network traffic (iperf over IPsec).\nAC:L - The BH-enabled completion happens on every interrupt-mode request, and the recursion requires only that a NET_RX softirq land on the same CPU while `x->lock` is held — a window the attacker widens at will by sustaining ESP packet volume, controlling both sides of the race. The original reporter reproduced it with ordinary iperf load.\nPR:N - No credentials on the target are needed: ESP frames sent to a known SPI enter `esp_input()` and reach `esp_input_done` even when authentication fails, and ordinary tunnel traffic from any remote host suffices. The alternate local vector via AF_ALG is likewise available to a fully unprivileged user.\nUI:N - Triggering requires only sending network traffic to a device whose IPsec/crypto operations are backed by the STM32 CRYP accelerator; no action by any local user or administrator is involved.\nS:U - The fault is a locking-context violation contained entirely within the kernel; no VM, IOMMU, or sandbox boundary is crossed and no other security authority is affected.\nC:N - The defect is an incorrect execution context for a completion callback, not a memory-safety error — there is no out-of-bounds read, no freed-object reuse, and no path by which attacker-readable data is exposed.\nI:N - No memory is corrupted and no attacker-controlled write primitive arises; the callback simply runs with bottom halves enabled, which affects serialization rather than data content.\nA:H - Recursive acquisition of `xfrm_state->lock` from the re-entered `xfrm_input()` produces a spinlock-recursion BUG and a hard deadlock on that CPU, hanging IPsec/network processing (and panicking outright under `panic_on_warn`)." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/crypto/stm32/stm32-cryp.c" ], "versions": [ { "version": "9e054ec21ef8344345b28603fb272fe999f735db", "lessThan": "d93a2f86b0a998aa1f0870c85a2a60a0771ef89a", "status": "affected", "versionType": "git" }, { "version": "9e054ec21ef8344345b28603fb272fe999f735db", "lessThan": "5d734665cd5d93270731e0ff1dd673fec677f447", "status": "affected", "versionType": "git" }, { "version": "9e054ec21ef8344345b28603fb272fe999f735db", "lessThan": "56ddb9aa3b324c2d9645b5a7343e46010cf3f6ce", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/crypto/stm32/stm32-cryp.c" ], "versions": [ { "version": "4.16", "status": "affected" }, { "version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.50", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10.9", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.6.50" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.10.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.11" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d93a2f86b0a998aa1f0870c85a2a60a0771ef89a" }, { "url": "https://git.kernel.org/stable/c/5d734665cd5d93270731e0ff1dd673fec677f447" }, { "url": "https://git.kernel.org/stable/c/56ddb9aa3b324c2d9645b5a7343e46010cf3f6ce" } ], "title": "crypto: stm32/cryp - call finalize with bh disabled", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-10-10T13:23:47.545736Z", "id": "CVE-2024-47658", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-10T13:24:01.773Z" } } ] } }