{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-72063", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.903Z", "datePublished": "2026-08-15T05:52:17.315Z", "dateUpdated": "2026-08-23T12:46:39.651Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-23T12:46:39.651Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: tegra: do not call pinctrl for GPIO direction\n\ntegra_gpio_direction_input() and tegra_gpio_direction_output() already\nprogram the GPIO controller direction registers directly. The additional\npinctrl_gpio_direction_input/output() calls do not add a Tegra pinctrl\noperation, because the Tegra pinmux ops provide GPIO request/free\nhandling but no gpio_set_direction hook.\n\nThe extra call still enters the pinctrl core and takes pctldev->mutex.\nShared GPIO users can call the direction path while holding their\nper-line spinlock, so this otherwise redundant pinctrl direction call can\nsleep in an atomic context.\n\nThis was found by our static analysis tool and then confirmed by manual\nreview of tegra_gpio_probe(), the Tegra GPIO direction callbacks and the\nTegra pinctrl ops. The reviewed path has a default non-sleeping\nstruct gpio_chip while the direction callback still enters the pinctrl\nmutex path.\n\nA directed runtime validation kept the same non-sleeping chip registration\nand drove:\n\n gpio_shared_proxy_direction_output()\n gpiod_direction_output_raw_commit()\n tegra_gpio_direction_output()\n pinctrl_gpio_direction_output()\n\nLockdep reported a sleep-in-atomic warning with the shared GPIO spinlock\nheld and pinctrl_get_device_gpio_range() plus tegra_gpio_direction_output()\non the stack.\n\nDo not mark the whole chip as can_sleep to paper over this: can_sleep\ndescribes whether get()/set() may sleep, and Tegra value access is MMIO.\nRemove the redundant pinctrl direction calls and keep pinctrl involvement\nin the existing request/free path." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpio/gpio-tegra.c" ], "versions": [ { "version": "11da905412833d9b369a6a09a401f87149d674dc", "lessThan": "89904b4f1dc0f9550c3f206dcdfceed0b7ce7c49", "status": "affected", "versionType": "git" }, { "version": "11da905412833d9b369a6a09a401f87149d674dc", "lessThan": "d3b92d16e1c4debec7526b6dbb2d98d0aeed796b", "status": "affected", "versionType": "git" }, { "version": "11da905412833d9b369a6a09a401f87149d674dc", "lessThan": "616188becd4a208afbae1653fc5241e1748bae80", "status": "affected", "versionType": "git" }, { "version": "11da905412833d9b369a6a09a401f87149d674dc", "lessThan": "e57a4845b0da60a7b9f052160878097826320954", "status": "affected", "versionType": "git" }, { "version": "11da905412833d9b369a6a09a401f87149d674dc", "lessThan": "cd17c5a1d9f186b57e9e2949be427803b7110a5c", "status": "affected", "versionType": "git" }, { "version": "11da905412833d9b369a6a09a401f87149d674dc", "lessThan": "ac761e66708d51dac35c4c7f1891ea991dc788f0", "status": "affected", "versionType": "git" }, { "version": "11da905412833d9b369a6a09a401f87149d674dc", "lessThan": "628c63f96f4564fa145f602af2d41daf9532201f", "status": "affected", "versionType": "git" }, { "version": "11da905412833d9b369a6a09a401f87149d674dc", "lessThan": "d3e91a95b2b0fc6336dbf3ec90d831a1654d2720", "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/gpio/gpio-tegra.c" ], "versions": [ { "version": "5.1", "status": "affected" }, { "version": "0", "lessThan": "5.1", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.266", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.217", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.184", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2", "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": "5.1", "versionEndExcluding": "5.10.266" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "5.15.217" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.1.184" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.6.148" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.12.97" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "6.18.40" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "7.1.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.1", "versionEndExcluding": "7.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/89904b4f1dc0f9550c3f206dcdfceed0b7ce7c49" }, { "url": "https://git.kernel.org/stable/c/d3b92d16e1c4debec7526b6dbb2d98d0aeed796b" }, { "url": "https://git.kernel.org/stable/c/616188becd4a208afbae1653fc5241e1748bae80" }, { "url": "https://git.kernel.org/stable/c/e57a4845b0da60a7b9f052160878097826320954" }, { "url": "https://git.kernel.org/stable/c/cd17c5a1d9f186b57e9e2949be427803b7110a5c" }, { "url": "https://git.kernel.org/stable/c/ac761e66708d51dac35c4c7f1891ea991dc788f0" }, { "url": "https://git.kernel.org/stable/c/628c63f96f4564fa145f602af2d41daf9532201f" }, { "url": "https://git.kernel.org/stable/c/d3e91a95b2b0fc6336dbf3ec90d831a1654d2720" } ], "title": "gpio: tegra: do not call pinctrl for GPIO direction", "x_generator": { "engine": "bippy-1.2.0" } } } }