{"id":"CVE-2026-46004","summary":"ALSA: caiaq: Handle probe errors properly","details":"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-\u003eprivate_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.","modified":"2026-06-24T09:14:23.923359911Z","published":"2026-05-27T12:56:01.851Z","related":["SUSE-SU-2026:22108-1","SUSE-SU-2026:22137-1","SUSE-SU-2026:2310-1","SUSE-SU-2026:2482-1","SUSE-SU-2026:2591-1","openSUSE-SU-2026:10954-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46004.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/09616e25f502080ba684fc7fcf959d1376ab756d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/096dd8519cf2f768e9e14f224b627f7aaee1a9c5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/28abd224db4a49560b452115bca3672a20e45b2f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45"},{"type":"WEB","url":"https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bdd"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46004.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46004"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8e3cd08ed8e590952aa9a656758cb24d4ba898f8"},{"fixed":"da938aa9fc7826901921dcea225948ab21a97e45"},{"fixed":"09616e25f502080ba684fc7fcf959d1376ab756d"},{"fixed":"b956e48371f2ff72b76be9a829800ecec963bd45"},{"fixed":"f537e3ad69609f6924a4db6b4a7f6561f5288bdd"},{"fixed":"6251e3e256337a30160ef59ab1580dde4d1acd28"},{"fixed":"e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056"},{"fixed":"096dd8519cf2f768e9e14f224b627f7aaee1a9c5"},{"fixed":"28abd224db4a49560b452115bca3672a20e45b2f"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-46004.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.25"},{"fixed":"5.10.258"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.140"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.86"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.27"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-46004.json"}}],"schema_version":"1.7.5"}