{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-50773", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50773", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-12-24T13:06:03.533Z", "updatedAt": "2026-05-11T19:25:15.871Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "ALSA: mts64: fix possible null-ptr-defer in snd_mts64_interrupt", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: mts64: fix possible null-ptr-defer in snd_mts64_interrupt\n\nI got a null-ptr-defer error report when I do the following tests\non the qemu platform:\n\nmake defconfig and CONFIG_PARPORT=m, CONFIG_PARPORT_PC=m,\nCONFIG_SND_MTS64=m\n\nThen making test scripts:\ncat>test_mod1.sh<\n snd_mts64_interrupt+0x24/0xa0 [snd_mts64]\n parport_irq_handler+0x37/0x50 [parport]\n __handle_irq_event_percpu+0x39/0x190\n handle_irq_event_percpu+0xa/0x30\n handle_irq_event+0x2f/0x50\n handle_edge_irq+0x99/0x1b0\n __common_interrupt+0x5d/0x100\n common_interrupt+0xa0/0xc0\n \n \n asm_common_interrupt+0x22/0x40\n RIP: 0010:_raw_write_unlock_irqrestore+0x11/0x30\n parport_claim+0xbd/0x230 [parport]\n snd_mts64_probe+0x14a/0x465 [snd_mts64]\n platform_probe+0x3f/0xa0\n really_probe+0x129/0x2c0\n __driver_probe_device+0x6d/0xc0\n driver_probe_device+0x1a/0xa0\n __device_attach_driver+0x7a/0xb0\n bus_for_each_drv+0x62/0xb0\n __device_attach+0xe4/0x180\n bus_probe_device+0x82/0xa0\n device_add+0x550/0x920\n platform_device_add+0x106/0x220\n snd_mts64_attach+0x2e/0x80 [snd_mts64]\n port_check+0x14/0x20 [parport]\n bus_for_each_dev+0x6e/0xc0\n __parport_register_driver+0x7c/0xb0 [parport]\n snd_mts64_module_init+0x31/0x1000 [snd_mts64]\n do_one_initcall+0x3c/0x1f0\n do_init_module+0x46/0x1c6\n load_module+0x1d8d/0x1e10\n __do_sys_finit_module+0xa2/0xf0\n do_syscall_64+0x37/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n \n Kernel panic - not syncing: Fatal exception in interrupt\n Rebooting in 1 seconds..\n\nThe mts wa not initialized during interrupt, we add check for\nmts to fix this bug.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "06ec592389f2be3199779ab823c4323dcfd2121f" }, { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "b471fe61da523a15e4cb60fa81f5a2377e4bad98" }, { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "7e91667db38abb056da5a496d40fbd044c66bed2" }, { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "c7e9624d90bf20f1eed6b228949396d614b94020" }, { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "0649129359219ce6ff380ec401f87308485c6ae3" }, { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "cba633b24a98d957e8190ef8bc4d4cdb4f6e9313" }, { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "1a763c748acd5540ccc43306c57c9c6c5fb60884" }, { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "250eed7b9994d79f9c409f954dbd08e88f5afd83" }, { "version": "68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad", "status": "affected", "versionType": "git", "lessThan": "cf2ea3c86ad90d63d1c572b43e1ca9276b0357ad" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.19", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.19" }, { "version": "4.9.337", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.9.*" }, { "version": "4.14.303", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.270", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.229", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.163", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.86", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.0.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.0.*" }, { "version": "6.1.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }