{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23207",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.986Z",
        "datePublished": "2026-02-14T16:27:29.762Z",
        "dateUpdated": "2026-05-23T16:04:11.219Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:04:11.219Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra210-quad: Protect curr_xfer check in IRQ handler\n\nNow that all other accesses to curr_xfer are done under the lock,\nprotect the curr_xfer NULL check in tegra_qspi_isr_thread() with the\nspinlock. Without this protection, the following race can occur:\n\n  CPU0 (ISR thread)              CPU1 (timeout path)\n  ----------------               -------------------\n  if (!tqspi->curr_xfer)\n    // sees non-NULL\n                                 spin_lock()\n                                 tqspi->curr_xfer = NULL\n                                 spin_unlock()\n  handle_*_xfer()\n    spin_lock()\n    t = tqspi->curr_xfer  // NULL!\n    ... t->len ...        // NULL dereference!\n\nWith this patch, all curr_xfer accesses are now properly synchronized.\n\nAlthough all accesses to curr_xfer are done under the lock, in\ntegra_qspi_isr_thread() it checks for NULL, releases the lock and\nreacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer().\nThere is a potential for an update in between, which could cause a NULL\npointer dereference.\n\nTo handle this, add a NULL check inside the handlers after acquiring\nthe lock. This ensures that if the timeout path has already cleared\ncurr_xfer, the handler will safely return without dereferencing the\nNULL pointer."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/spi/spi-tegra210-quad.c"
                    ],
                    "versions": [
                        {
                            "version": "551060efb156c50fe33799038ba8145418cfdeef",
                            "lessThan": "84e926c1c272a35ddb9b86842d32fa833a60dfc7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "01bbf25c767219b14c3235bfa85906b8d2cb8fbc",
                            "lessThan": "2ac3a105e51496147c0e44e49466eecfcc532d57",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4e002d8a7cee3b1d70efad0e222567f92a73000",
                            "lessThan": "edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "88db8bb7ed1bb474618acdf05ebd4f0758d244e2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "83309dd551cfd60a5a1a98d9cab19f435b44d46d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c934e40246da2c5726d14e94719c514e30840df8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bb0c58be84f907285af45657c1d4847b960a12bf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.15.198",
                            "lessThan": "5.16",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.160",
                            "lessThan": "6.2",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.120",
                            "lessThan": "6.7",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.13",
                            "lessThan": "6.18",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/spi/spi-tegra210-quad.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12.63",
                            "lessThan": "6.12.80",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.2",
                            "lessThan": "6.18.10",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.63",
                                    "versionEndExcluding": "6.12.80"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18.2",
                                    "versionEndExcluding": "6.18.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15.198"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.120"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17.13"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/84e926c1c272a35ddb9b86842d32fa833a60dfc7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57"
                },
                {
                    "url": "https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e"
                }
            ],
            "title": "spi: tegra210-quad: Protect curr_xfer check in IRQ handler",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}