264 lines
14 KiB
JSON
264 lines
14 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-2026-72133",
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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": "2026-08-09T03:40:39.907Z",
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"datePublished": "2026-08-15T05:53:08.833Z",
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"dateUpdated": "2026-08-17T05:40:43.316Z"
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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": "2026-08-17T05:40:43.316Z"
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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\nspi: uniphier: Fix completion initialization order before devm_request_irq()\n\nThe driver calls devm_request_irq() before initializing the completion\nused by the interrupt handler. Because the interrupt may occur immediately\nafter devm_request_irq(), the handler may execute before init_completion().\n\nThis may result in calling complete() on an uninitialized completion,\ncausing undefined behavior. This has been observed with KASAN.\n\nFix this by initializing the completion before registering the IRQ."
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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:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.4,
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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 in uniphier_spi_probe() on Socionext UniPhier embedded SoCs; uniphier_spi_handler() runs during platform driver initialization at boot/module load, not via network protocols, remote packets, or runtime SPI syscalls/ioctls.\nAC:L - Commit and reporter confirm the SPI controller IRQ may assert immediately after devm_request_irq(); stale or pending SSI status on warm reboot can invoke complete() on uninitialized xfer_done without attacker luck.\nPR:N - uniphier_spi_probe() has no credential or capability checks before devm_request_irq(); on affected UniPhier boards the vulnerable probe sequence runs automatically during kernel boot without the attacker holding Linux privileges.\nUI:N - No victim action is required; a pending SPI controller interrupt during driver probe at boot or reboot can trigger the uninitialized complete() path without opening /dev/spidev*, mounting filesystems, or other user operations.\nS:U - Impact is kernel panic from uninitialized completion/spinlock handling within the host kernel; this is not a VM escape, hypervisor bypass, IOMMU violation, or sandbox boundary crossing on embedded UniPhier systems.\nC:H - complete() takes an uninitialized wait.lock and swake_up_locked() walks a zeroed task_list, causing KASAN wild-memory-access and invalid kernel memory reads beyond a strictly bounded NULL fault.\nI:H - Calling complete() on an uninitialized completion corrupts spinlock/wait-queue metadata in uniphier_spi_priv; KASAN-reported undefined behavior in IRQ context can corrupt adjacent kzalloc slab data and enable further kernel control primitives.\nA:H - KASAN wild-memory-access and NULL list dereference in uniphier_spi_handler() during probe cause kernel oops/panic on affected UniPhier embedded devices, denying all system availability until reboot."
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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/spi/spi-uniphier.c"
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],
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"versions": [
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{
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"version": "5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177",
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"lessThan": "b9fcf0db433d79648ace74bc2b8b88f91e306304",
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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": "5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177",
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"lessThan": "82a5746c4c9e94f6f816ec7edea6ddc24417c6a5",
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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": "5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177",
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"lessThan": "f4bb0a91f7badd6d15ac8d783a1169d9e1e95c17",
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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": "5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177",
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"lessThan": "49f6705d80b5e6175d8435d9c72b66bd516a8e89",
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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": "5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177",
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"lessThan": "8b5798ce0007874c14611b8ee4ce6c749855260e",
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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": "5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177",
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"lessThan": "d44b828eb551bd59ba9f22457825cc3db3a39fc1",
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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": "5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177",
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"lessThan": "077a7bc1c32d3da9670c5e282ea3e5ac8a94be59",
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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": "5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177",
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"lessThan": "f3ad1c87d8201e54b66bd6072442f0b5d5a308ee",
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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/spi/spi-uniphier.c"
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],
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"versions": [
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{
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"version": "4.19",
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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": "4.19",
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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": "5.10.261",
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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": "5.15.212",
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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": "6.1.178",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.145",
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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": "6.12.97",
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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": "6.18.40",
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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": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "4.19",
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"versionEndExcluding": "5.10.261"
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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": "4.19",
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"versionEndExcluding": "5.15.212"
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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": "4.19",
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"versionEndExcluding": "6.1.178"
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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": "4.19",
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"versionEndExcluding": "6.6.145"
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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": "4.19",
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"versionEndExcluding": "6.12.97"
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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": "4.19",
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"versionEndExcluding": "6.18.40"
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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": "4.19",
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"versionEndExcluding": "7.1.5"
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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": "4.19",
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"versionEndExcluding": "7.2"
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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/b9fcf0db433d79648ace74bc2b8b88f91e306304"
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},
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{
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"url": "https://git.kernel.org/stable/c/82a5746c4c9e94f6f816ec7edea6ddc24417c6a5"
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},
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{
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"url": "https://git.kernel.org/stable/c/f4bb0a91f7badd6d15ac8d783a1169d9e1e95c17"
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},
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{
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"url": "https://git.kernel.org/stable/c/49f6705d80b5e6175d8435d9c72b66bd516a8e89"
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},
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{
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"url": "https://git.kernel.org/stable/c/8b5798ce0007874c14611b8ee4ce6c749855260e"
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},
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{
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"url": "https://git.kernel.org/stable/c/d44b828eb551bd59ba9f22457825cc3db3a39fc1"
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},
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{
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"url": "https://git.kernel.org/stable/c/077a7bc1c32d3da9670c5e282ea3e5ac8a94be59"
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},
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{
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"url": "https://git.kernel.org/stable/c/f3ad1c87d8201e54b66bd6072442f0b5d5a308ee"
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}
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],
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"title": "spi: uniphier: Fix completion initialization order before devm_request_irq()",
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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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} |