CVE-2022-50884
In the Linux kernel, the following vulnerability has been resolved:
drm: Prevent drm_copy_field() to attempt copying a NULL pointer
There are some struct drm_driver fields that are required by drivers since drm_copy_field() attempts to copy them to user-space via DRM_IOCTL_VERSION.
But it can be possible that a driver has a bug and did not set some of the fields, which leads to drm_copy_field() attempting to copy a NULL pointer:
[ +10.395966] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000 [ +0.010955] Mem abort info: [ +0.002835] ESR = 0x0000000096000004 [ +0.003872] EC = 0x25: DABT (current EL), IL = 32 bits [ +0.005395] SET = 0, FnV = 0 [ +0.003113] EA = 0, S1PTW = 0 [ +0.003182] FSC = 0x04: level 0 translation fault [ +0.004964] Data abort info: [ +0.002919] ISV = 0, ISS = 0x00000004 [ +0.003886] CM = 0, WnR = 0 [ +0.003040] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000115dad000 [ +0.006536] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 [ +0.006925] Internal error: Oops: 96000004 [#1] SMP ... [ +0.011113] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ +0.007061] pc : __pi_strlen+0x14/0x150 [ +0.003895] lr : drm_copy_field+0x30/0x1a4 [ +0.004156] sp : ffff8000094b3a50 [ +0.003355] x29: ffff8000094b3a50 x28: ffff8000094b3b70 x27: 0000000000000040 [ +0.007242] x26: ffff443743c2ba00 x25: 0000000000000000 x24: 0000000000000040 [ +0.007243] x23: ffff443743c2ba00 x22: ffff8000094b3b70 x21: 0000000000000000 [ +0.007241] x20: 0000000000000000 x19: ffff8000094b3b90 x18: 0000000000000000 [ +0.007241] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaab14b9af40 [ +0.007241] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ +0.007239] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa524ad67d4d8 [ +0.007242] x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : 6c6e6263606e7141 [ +0.007239] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 [ +0.007241] x2 : 0000000000000000 x1 : ffff8000094b3b90 x0 : 0000000000000000 [ +0.007240] Call trace: [ +0.002475] __pi_strlen+0x14/0x150 [ +0.003537] drm_version+0x84/0xac [ +0.003448] drm_ioctl_kernel+0xa8/0x16c [ +0.003975] drm_ioctl+0x270/0x580 [ +0.003448] __arm64_sys_ioctl+0xb8/0xfc [ +0.003978] invoke_syscall+0x78/0x100 [ +0.003799] el0_svc_common.constprop.0+0x4c/0xf4 [ +0.004767] do_el0_svc+0x38/0x4c [ +0.003357] el0_svc+0x34/0x100 [ +0.003185] el0t_64_sync_handler+0x11c/0x150 [ +0.004418] el0t_64_sync+0x190/0x194 [ +0.003716] Code: 92402c04 b200c3e8 f13fc09f 5400088c (a9400c02) [ +0.006180] ---[ end trace 0000000000000000 ]---
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.23%
- Percentil entre todas las CVEs puntuadas: 13
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- https://git.kernel.org/stable/c/2d6708ea5c2033ff53267feff1876a717689989f
- https://git.kernel.org/stable/c/6cf5e9356b2d856403ee480f987f3ea64dbf8d8c
- https://git.kernel.org/stable/c/8052612b9d08048ebbebcb572894670b4ac07d2f
- https://git.kernel.org/stable/c/c28a8082b25ce4ec94999e10a30c50d20bd44a25
- https://git.kernel.org/stable/c/ca163e389f0ae096a4e1e19f0a95e60ed80b4e31
- https://git.kernel.org/stable/c/cdde55f97298e5bb9af6d41c9303a3ec545a370e
- https://git.kernel.org/stable/c/d213914386a0ede76a4549b41de30192fb92c595
- https://git.kernel.org/stable/c/ee9885cd936aad88f84d0cf90bf9a70e83e42a97
- https://git.kernel.org/stable/c/f6ee30407e883042482ad4ad30da5eaba47872ee
JSON original (NVD)
Mostrar
{
"id": "CVE-2022-50884",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
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"vendor": "Linux",
"product": "Linux",
"versions": [
{
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"version": "22eae947bf76e236ba972f2f11cfd1b083b736ad",
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"versionType": "git"
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{
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{
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{
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"programFiles": [
"drivers/gpu/drm/drm_ioctl.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.9.331",
"versionType": "semver",
"lessThanOrEqual": "4.9.*"
},
{
"status": "unaffected",
"version": "4.14.296",
"versionType": "semver",
"lessThanOrEqual": "4.14.*"
},
{
"status": "unaffected",
"version": "4.19.262",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.220",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.150",
"versionType": "semver",
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{
"status": "unaffected",
"version": "5.15.75",
"versionType": "semver",
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},
{
"status": "unaffected",
"version": "5.19.17",
"versionType": "semver",
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},
{
"status": "unaffected",
"version": "6.0.3",
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},
{
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"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/drm_ioctl.c"
],
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}
]
}
],
"published": "2025-12-30T13:16:03.493",
"references": [
{
"url": "https://git.kernel.org/stable/c/2d6708ea5c2033ff53267feff1876a717689989f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6cf5e9356b2d856403ee480f987f3ea64dbf8d8c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
"url": "https://git.kernel.org/stable/c/c28a8082b25ce4ec94999e10a30c50d20bd44a25",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ca163e389f0ae096a4e1e19f0a95e60ed80b4e31",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/cdde55f97298e5bb9af6d41c9303a3ec545a370e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d213914386a0ede76a4549b41de30192fb92c595",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ee9885cd936aad88f84d0cf90bf9a70e83e42a97",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f6ee30407e883042482ad4ad30da5eaba47872ee",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "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 ]---"
}
],
"lastModified": "2026-06-17T05:24:21.047",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}