{"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"}}}}