CVE-2022-50274
published 2025-09-15CVE-2022-50274: In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvb_unregister_device() is known that prone to…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.15%
4.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
media: dvbdev: adopts refcnt to avoid UAF
dvb_unregister_device() is known that prone to use-after-free.
That is, the cleanup from dvb_unregister_device() releases the dvb_device
even if there are pointers stored in file->private_data still refer to it.
This patch adds a reference counter into struct dvb_device and delays its
deallocation until no pointer refers to the object.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.4-1 (bookworm) | linux 6.1.4-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ac521bbe3d00fa574e66a9361763f2b37725bc97 | ac521bbe3d00fa574e66a9361763f2b37725bc97 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 219b44bf94203bd433aa91b7796475bf656348e5 | 219b44bf94203bd433aa91b7796475bf656348e5 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2 | 6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2abd73433872194bccdf1432a0980e4ec5273c2a | 2abd73433872194bccdf1432a0980e4ec5273c2a |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 88a6f8a72d167294c0931c7874941bf37a41b6dd | 88a6f8a72d167294c0931c7874941bf37a41b6dd |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a2f0a08aa613176c9688c81d7b598a7779974991 | a2f0a08aa613176c9688c81d7b598a7779974991 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9945d05d6693710574f354c5dbddc47f5101eb77 | 9945d05d6693710574f354c5dbddc47f5101eb77 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79 | 0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79 |
| linux | linux_kernel | < 4.14.303 | 4.14.303 |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 4.15 < 4.19.270 | 4.19.270 |
| linux | linux_kernel | >= 4.20 < 5.4.229 | 5.4.229 |
| linux | linux_kernel | >= 5.11 < 5.15.86 | 5.15.86 |
| linux | linux_kernel | >= 5.16 < 6.0.16 | 6.0.16 |
| linux | linux_kernel | >= 5.5 < 5.10.163 | 5.10.163 |
| linux | linux_kernel | >= 6.1 < 6.1.2 | 6.1.2 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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Red Hat
kernel: media: dvbdev: adopts refcnt to avoid UAF
vendor_redhat·2025-09-15·CVSS 7.8
CVE-2022-50274 [HIGH] CWE-416 kernel: media: dvbdev: adopts refcnt to avoid UAF
kernel: media: dvbdev: adopts refcnt to avoid UAF
In the Linux kernel, the following vulnerability has been resolved:
media: dvbdev: adopts refcnt to avoid UAF
dvb_unregister_device() is known that prone to use-after-free.
That is, the cleanup from dvb_unregister_device() releases the dvb_device
even if there are pointers stored in file->private_data still refer to it.
This patch adds a reference counter into struct dvb_device and delays its
deallocation until no pointer refers to the object.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Fix deferred
Package: kernel-rt (Red Hat Enterprise Linux 7) - Fix deferred
Package: kernel-rt (Red Hat Enterprise Linux 8) - Fi
Debian
CVE-2022-50274: linux - In the Linux kernel, the following vulnerability has been resolved: media: dvbd...
vendor_debian·2022·CVSS 7.8
CVE-2022-50274 [HIGH] CVE-2022-50274: linux - In the Linux kernel, the following vulnerability has been resolved: media: dvbd...
In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvb_unregister_device() is known that prone to use-after-free. That is, the cleanup from dvb_unregister_device() releases the dvb_device even if there are pointers stored in file->private_data still refer to it. This patch adds a reference counter into struct dvb_device and delays its deallocation until no pointer refers to the object.
Scope: local
bookworm: resolved (fixed in 6.1.4-1)
bullseye: resolved (fixed in 5.10.178-1)
forky: resolved (fixed in 6.1.4-1)
sid: resolved (fixed in 6.1.4-1)
trixie: resolved (fixed in 6.1.4-1)
OSV
CVE-2022-50274: In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvb_unregister_device() is known that pr
osv·2025-09-15·CVSS 7.8
CVE-2022-50274 [HIGH] CVE-2022-50274: In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvb_unregister_device() is known that pr
In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvb_unregister_device() is known that prone to use-after-free. That is, the cleanup from dvb_unregister_device() releases the dvb_device even if there are pointers stored in file->private_data still refer to it. This patch adds a reference counter into struct dvb_device and delays its deallocation until no pointer refers to the object.
GHSA
GHSA-x77f-2wpm-x48r: In the Linux kernel, the following vulnerability has been resolved:
media: dvbdev: adopts refcnt to avoid UAF
dvb_unregister_device() is known that
ghsa_unreviewed·2025-09-15
CVE-2022-50274 [HIGH] CWE-416 GHSA-x77f-2wpm-x48r: In the Linux kernel, the following vulnerability has been resolved:
media: dvbdev: adopts refcnt to avoid UAF
dvb_unregister_device() is known that
In the Linux kernel, the following vulnerability has been resolved:
media: dvbdev: adopts refcnt to avoid UAF
dvb_unregister_device() is known that prone to use-after-free.
That is, the cleanup from dvb_unregister_device() releases the dvb_device
even if there are pointers stored in file->private_data still refer to it.
This patch adds a reference counter into struct dvb_device and delays its
deallocation until no pointer refers to the object.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79https://git.kernel.org/stable/c/219b44bf94203bd433aa91b7796475bf656348e5https://git.kernel.org/stable/c/2abd73433872194bccdf1432a0980e4ec5273c2ahttps://git.kernel.org/stable/c/6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2https://git.kernel.org/stable/c/88a6f8a72d167294c0931c7874941bf37a41b6ddhttps://git.kernel.org/stable/c/9945d05d6693710574f354c5dbddc47f5101eb77https://git.kernel.org/stable/c/a2f0a08aa613176c9688c81d7b598a7779974991https://git.kernel.org/stable/c/ac521bbe3d00fa574e66a9361763f2b37725bc97
2025-09-15
Published