CVE-2026-46192

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46192", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.104Z", "datePublished": "2026-05-28T09:36:45.770Z", "dateUpdated": "2026-06-14T18:01:35.461Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T18:01:35.461Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: microchip-core-qspi: don't attempt to transmit during emulated read-only dual/quad operations\n\nThe core will deal with reads by creating clock cycles itself, there's\nno need to generate clock cycles by transmitting garbage data at the\ndriver level. Further, transmitting garbage data just bricks the transfer\nsince QSPI doesn't have a dedicated master-out line like MOSI in regular\nSPI. I'm not entirely sure if the transfer is bricked because of the\ngarbage data being transmitted on the bus or because the core loses\ntrack of whether it is supposed to be sending or receiving data."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/spi/spi-microchip-core-qspi.c"], "versions": [{"version": "8f9cf02c8852837923f1cdacfcc92e138513325c", "lessThan": "ec9d0ddbde6003c303fa5e1d5cd48952852984d8", "status": "affected", "versionType": "git"}, {"version": "8f9cf02c8852837923f1cdacfcc92e138513325c", "lessThan": "67184f361ab4d9fac6d2b8d5fed6649d496038a4", "status": "affected", "versionType": "git"}, {"version": "8f9cf02c8852837923f1cdacfcc92e138513325c", "lessThan": "eb56deaabf127e8985fc91fa6c97bf8a3b062844", "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/spi/spi-microchip-core-qspi.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.17", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ec9d0ddbde6003c303fa5e1d5cd48952852984d8"}, {"url": "https://git.kernel.org/stable/c/67184f361ab4d9fac6d2b8d5fed6649d496038a4"}, {"url": "https://git.kernel.org/stable/c/eb56deaabf127e8985fc91fa6c97bf8a3b062844"}], "title": "spi: microchip-core-qspi: don't attempt to transmit during emulated read-only dual/quad operations", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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{"bugzilla": {"description": "kernel: spi: microchip-core-qspi: don't attempt to transmit during emulated read-only dual/quad operations", "id": "2482601", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482601"}, "csaw": false, "cwe": "CWE-372", "details": ["A flaw was found in the Linux kernel's `spi: microchip-core-qspi` driver. This vulnerability allows the driver to transmit data during emulated read-only dual or quad operations, which are specific modes for communicating with Quad Serial Peripheral Interface (QSPI) devices. This unintended data transmission can disrupt the QSPI communication, leading to a denial of service (DoS) where the transfer becomes inoperable."], "name": "CVE-2026-46192", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46192\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46192\nhttps://lore.kernel.org/linux-cve-announce/2026052832-CVE-2026-46192-2c71@gregkh/T"]}

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