{"id":"CVE-2024-53150","kind":"vulnerability","aliases":["CVE-2024-53150"],"related":[],"title":"In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out of bounds reads when…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Fix out of bounds reads when finding clock sources\n\nThe current USB-audio driver code doesn't check bLength of each\ndescriptor at traversing for clock descriptors.  That is, when a\ndevice provides a bogus descriptor with a shorter bLength, the driver\nmight hit out-of-bounds reads.\n\nFor addressing it, this patch adds sanity checks to the validator\nfunctions for the clock descriptor traversal.  When the descriptor\nlength is shorter than expected, it's skipped in the loop.\n\nFor the clock source and clock multiplier descriptors, we can just\ncheck bLength against the sizeof() of each descriptor type.\nOTOH, the clock selector descriptor of UAC2 and UAC3 has an array\nof bNrInPins elements and two more fields at its tail, hence those\nhave to be checked in addition to the sizeof() check.","summary":"The Linux kernel's USB-audio driver can read memory past the end of a buffer. A local attacker with privileges can use this to obtain potentially sensitive kernel information.","severity":"high","cvss":7.1,"epss":null,"exploited":true,"exploited_at":"2025-04-09T00:00:00+00:00","products":[{"name":"debian linux","fixed":[],"affected":"= 11.0","ecosystem":"vendor"},{"name":"linux kernel","fixed":["5.4.287"],"affected":"< 5.4.287","ecosystem":"vendor"},{"name":"linux kernel","fixed":["5.10.231"],"affected":">= 5.5, < 5.10.231","ecosystem":"vendor"},{"name":"linux kernel","fixed":["5.15.174"],"affected":">= 5.11, < 5.15.174","ecosystem":"vendor"},{"name":"linux kernel","fixed":["6.1.120"],"affected":">= 5.16, < 6.1.120","ecosystem":"vendor"},{"name":"linux kernel","fixed":["6.6.64"],"affected":">= 6.2, < 6.6.64","ecosystem":"vendor"},{"name":"linux kernel","fixed":["6.11.11"],"affected":">= 6.7, < 6.11.11","ecosystem":"vendor"},{"name":"linux kernel","fixed":["6.12.2"],"affected":">= 6.12, < 6.12.2","ecosystem":"vendor"},{"name":"Linux Kernel","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","kernel","linux","usb-audio"],"not_affected_if":["kernel-patched","no-usb-audio-driver"],"how_to_check":null,"fix":"Apply the vendor kernel fix or mitigation per the CISA KEV entry; the sources do not name a fixed kernel version.","status":"open","published_at":"2024-12-24T12:15:23+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:48:48+00:00","updated_at":"2026-10-24T00:09:50+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T20:48:48Z","model":"claude-haiku-5-5","output":{"fix":"Apply the vendor kernel fix or mitigation per the CISA KEV entry; the sources do not name a fixed kernel version.","reach":"local","summary":"The Linux kernel's USB-audio driver can read memory past the end of a buffer. A local attacker with privileges can use this to obtain potentially sensitive kernel information.","category":"infrastructure","who_cares":["linux","kernel","usb-audio"],"confidence":0.6,"needs_auth":"yes","worst_case":"local privileged user reads sensitive kernel memory contents","analyst_note":"Find the fixed kernel versions and the USB-audio commit in the upstream kernel CVE record or the kernel.org stable advisories; CISA KEV lists it as exploited, so confirm the distro kernel status.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["no-usb-audio-driver","kernel-patched"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000431,"input_tokens":2534,"output_tokens":355,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2024':21A,24A '-53150':22A,25A 'add':151C 'addit':226C 'address':147C 'alsa':11A,92C 'array':208C 'attack':70B 'audio':14A,50B,57B,95C,109C 'blength':115C,136C,189C 'bnrinpin':210C 'bogus':131C 'bound':18A,99C,144C 'buffer':67B 'check':114C,153C,188C,224C,230C 'clock':103C,122C,160C,179C,182C,199C 'code':111C 'current':106C 'cve':20A,23A 'debian':26A 'descriptor':118C,123C,132C,161C,165C,184C,195C,201C 'devic':128C 'doesn':112C 'driver':58B,110C,138C 'element':211C 'end':64B 'expect':170C 'exploit':44B 'field':215C 'find':102C 'fix':15A,96C 'follow':6A,87C 'function':157C 'henc':219C 'hit':140C 'inform':81B 'infrastructur':45B 'kernel':4A,29A,31A,33A,35A,37A,39A,41A,43A,46B,53B,80B,85C 'length':166C 'linux':3A,27A,28A,30A,32A,34A,36A,38A,40A,42A,47B,52B,84C 'local':69B 'loop':176C 'memori':61B 'might':139C 'multipli':183C 'obtain':77B 'otoh':197C 'out-of-bound':141C 'past':62B 'patch':150C 'potenti':78B 'privileg':72B 'provid':129C 'read':19A,60B,100C,145C 'resolv':10A,91C 'saniti':152C 'selector':200C 'sensit':79B 'shorter':135C,168C 'sizeof':192C,229C 'skip':173C 'sourc':104C,180C 'tail':218C 'travers':120C,162C 'two':213C 'type':196C 'uac2':203C 'uac3':205C 'usb':13A,49B,56B,94C,108C 'usb-audio':12A,48B,55B,93C,107C 'use':74B 'valid':156C 'vulner':7A,88C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2024-12-24T12:15:23+00:00","kev":{"dateAdded":"2025-04-09","dueDate":"2025-04-30","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2024-53150","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-53150","severity":null,"published_at":"2025-04-09T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T11:39:14+00:00","note":null},{"source":"nvd","external_id":"CVE-2024-53150","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-53150","severity":null,"published_at":"2024-12-24T12:15:23+00:00","modified_at":"2026-06-17T08:08:25+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}