{ "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-2022-50884", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50884", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-12-30T12:34:11.390Z", "updatedAt": "2026-05-11T19:26:59.632Z", "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": "drm: Prevent drm_copy_field() to attempt copying a NULL pointer", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Prevent drm_copy_field() to attempt copying a NULL pointer\n\nThere are some struct drm_driver fields that are required by drivers since\ndrm_copy_field() attempts to copy them to user-space via DRM_IOCTL_VERSION.\n\nBut it can be possible that a driver has a bug and did not set some of the\nfields, which leads to drm_copy_field() attempting to copy a NULL pointer:\n\n[ +10.395966] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000\n[ +0.010955] Mem abort info:\n[ +0.002835] ESR = 0x0000000096000004\n[ +0.003872] EC = 0x25: DABT (current EL), IL = 32 bits\n[ +0.005395] SET = 0, FnV = 0\n[ +0.003113] EA = 0, S1PTW = 0\n[ +0.003182] FSC = 0x04: level 0 translation fault\n[ +0.004964] Data abort info:\n[ +0.002919] ISV = 0, ISS = 0x00000004\n[ +0.003886] CM = 0, WnR = 0\n[ +0.003040] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000115dad000\n[ +0.006536] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n[ +0.006925] Internal error: Oops: 96000004 [#1] SMP\n...\n[ +0.011113] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ +0.007061] pc : __pi_strlen+0x14/0x150\n[ +0.003895] lr : drm_copy_field+0x30/0x1a4\n[ +0.004156] sp : ffff8000094b3a50\n[ +0.003355] x29: ffff8000094b3a50 x28: ffff8000094b3b70 x27: 0000000000000040\n[ +0.007242] x26: ffff443743c2ba00 x25: 0000000000000000 x24: 0000000000000040\n[ +0.007243] x23: ffff443743c2ba00 x22: ffff8000094b3b70 x21: 0000000000000000\n[ +0.007241] x20: 0000000000000000 x19: ffff8000094b3b90 x18: 0000000000000000\n[ +0.007241] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaab14b9af40\n[ +0.007241] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n[ +0.007239] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa524ad67d4d8\n[ +0.007242] x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : 6c6e6263606e7141\n[ +0.007239] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n[ +0.007241] x2 : 0000000000000000 x1 : ffff8000094b3b90 x0 : 0000000000000000\n[ +0.007240] Call trace:\n[ +0.002475] __pi_strlen+0x14/0x150\n[ +0.003537] drm_version+0x84/0xac\n[ +0.003448] drm_ioctl_kernel+0xa8/0x16c\n[ +0.003975] drm_ioctl+0x270/0x580\n[ +0.003448] __arm64_sys_ioctl+0xb8/0xfc\n[ +0.003978] invoke_syscall+0x78/0x100\n[ +0.003799] el0_svc_common.constprop.0+0x4c/0xf4\n[ +0.004767] do_el0_svc+0x38/0x4c\n[ +0.003357] el0_svc+0x34/0x100\n[ +0.003185] el0t_64_sync_handler+0x11c/0x150\n[ +0.004418] el0t_64_sync+0x190/0x194\n[ +0.003716] Code: 92402c04 b200c3e8 f13fc09f 5400088c (a9400c02)\n[ +0.006180] ---[ end trace 0000000000000000 ]---", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "d213914386a0ede76a4549b41de30192fb92c595" }, { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "ee9885cd936aad88f84d0cf90bf9a70e83e42a97" }, { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "8052612b9d08048ebbebcb572894670b4ac07d2f" }, { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "cdde55f97298e5bb9af6d41c9303a3ec545a370e" }, { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "c28a8082b25ce4ec94999e10a30c50d20bd44a25" }, { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "ca163e389f0ae096a4e1e19f0a95e60ed80b4e31" }, { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "2d6708ea5c2033ff53267feff1876a717689989f" }, { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "6cf5e9356b2d856403ee480f987f3ea64dbf8d8c" }, { "version": "22eae947bf76e236ba972f2f11cfd1b083b736ad", "status": "affected", "versionType": "git", "lessThan": "f6ee30407e883042482ad4ad30da5eaba47872ee" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.16", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.16" }, { "version": "4.9.331", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.9.*" }, { "version": "4.14.296", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.262", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.220", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.150", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.75", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.19.17", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.19.*" }, { "version": "6.0.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.0.*" }, { "version": "6.1", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }