{"id":"CVE-2026-46004","state":"PUBLISHED","title":"ALSA: caiaq: Handle probe errors properly","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: caiaq: Handle probe errors properly\n\nThe probe procedure of setup_card() in caiaq driver doesn't treat the\nerror cases gracefully, e.g. the error from snd_card_register() calls\nsnd_card_free() but continues.  This would lead to a UAF for the\nfurther calls like snd_usb_caiaq_control_init(), as Berk suggested in\nanother patch in the link below.\n\nHowever, the problem is not only that; in general, this function drops\nthe all error handlings (as it's a void function) although its caller\ncan propagate an error to snd_probe(), which eventually calls\nsnd_card_free() as a proper error path.  That said, we should treat\neach error case in setup_card(), and just return the error code\npromptly, which is then handled later as a fatal error in snd_probe().\n\nThis patch achieves it by changing the setup_card() to return an error\ncode.  Also, the superfluous snd_card_free() call is removed, too.\n\nNote that card->private_free can be set still safely at returning an\nerror.  All called functions in card_free() have checks of the\nunassigned resources or NULL checks.","publishedAt":"2026-05-27T12:56:01.851Z","updatedAt":"2026-06-14T17:47:26.278Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"da938aa9fc7826901921dcea225948ab21a97e45","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"09616e25f502080ba684fc7fcf959d1376ab756d","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"b956e48371f2ff72b76be9a829800ecec963bd45","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"f537e3ad69609f6924a4db6b4a7f6561f5288bdd","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"6251e3e256337a30160ef59ab1580dde4d1acd28","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"096dd8519cf2f768e9e14f224b627f7aaee1a9c5","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"28abd224db4a49560b452115bca3672a20e45b2f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/caiaq/device.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.25","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.25","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.140","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.86","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.27","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.4","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/caiaq/device.c"]}],"references":["https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45","https://git.kernel.org/stable/c/09616e25f502080ba684fc7fcf959d1376ab756d","https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45","https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bdd","https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28","https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056","https://git.kernel.org/stable/c/096dd8519cf2f768e9e14f224b627f7aaee1a9c5","https://git.kernel.org/stable/c/28abd224db4a49560b452115bca3672a20e45b2f"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46004.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46004","state":"PUBLISHED","datePublished":"2026-05-27T12:56:01.851Z","dateUpdated":"2026-06-14T17:47:26.278Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.091Z"},"containers":{"cna":{"title":"ALSA: caiaq: Handle probe errors properly","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: caiaq: Handle probe errors properly\n\nThe probe procedure of setup_card() in caiaq driver doesn't treat the\nerror cases gracefully, e.g. the error from snd_card_register() calls\nsnd_card_free() but continues.  This would lead to a UAF for the\nfurther calls like snd_usb_caiaq_control_init(), as Berk suggested in\nanother patch in the link below.\n\nHowever, the problem is not only that; in general, this function drops\nthe all error handlings (as it's a void function) although its caller\ncan propagate an error to snd_probe(), which eventually calls\nsnd_card_free() as a proper error path.  That said, we should treat\neach error case in setup_card(), and just return the error code\npromptly, which is then handled later as a fatal error in snd_probe().\n\nThis patch achieves it by changing the setup_card() to return an error\ncode.  Also, the superfluous snd_card_free() call is removed, too.\n\nNote that card->private_free can be set still safely at returning an\nerror.  All called functions in card_free() have checks of the\nunassigned resources or NULL checks."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"da938aa9fc7826901921dcea225948ab21a97e45","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"09616e25f502080ba684fc7fcf959d1376ab756d","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"b956e48371f2ff72b76be9a829800ecec963bd45","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"f537e3ad69609f6924a4db6b4a7f6561f5288bdd","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"6251e3e256337a30160ef59ab1580dde4d1acd28","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"096dd8519cf2f768e9e14f224b627f7aaee1a9c5","versionType":"git"},{"version":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8","status":"affected","lessThan":"28abd224db4a49560b452115bca3672a20e45b2f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/caiaq/device.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.25","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.25","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.140","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.86","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.27","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.4","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/caiaq/device.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45"},{"url":"https://git.kernel.org/stable/c/09616e25f502080ba684fc7fcf959d1376ab756d"},{"url":"https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45"},{"url":"https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bdd"},{"url":"https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28"},{"url":"https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056"},{"url":"https://git.kernel.org/stable/c/096dd8519cf2f768e9e14f224b627f7aaee1a9c5"},{"url":"https://git.kernel.org/stable/c/28abd224db4a49560b452115bca3672a20e45b2f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-14T17:47:26.278Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.12.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.18.27"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"7.0.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}