CVE-2022-50481
published 2025-10-04CVE-2022-50481: In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() If device_register() fails…
PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
If device_register() fails in cxl_register_afu|adapter(), the device
is not added, device_unregister() can not be called in the error path,
otherwise it will cause a null-ptr-deref because of removing not added
device.
As comment of device_register() says, it should use put_device() to give
up the reference in the error path. So split device_unregister() into
device_del() and put_device(), then goes to put dev when register fails.
Affected
23 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 | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < 96fba6fb95bdede80583c262ac185da09661f264 | 96fba6fb95bdede80583c262ac185da09661f264 |
| linux | linux | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < 1ae581696b7a799afa39a664c4b721569643f58a | 1ae581696b7a799afa39a664c4b721569643f58a |
| linux | linux | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < d775a1da5a52b4f4bb02f2707ba420d1bec48dbb | d775a1da5a52b4f4bb02f2707ba420d1bec48dbb |
| linux | linux | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < 60b2ed21a65f3f5318666ccd765c3507991370cf | 60b2ed21a65f3f5318666ccd765c3507991370cf |
| linux | linux | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < 170e8c2d2b61e15e7f7cfeded81bc1e959a15ed8 | 170e8c2d2b61e15e7f7cfeded81bc1e959a15ed8 |
| linux | linux | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < e5021bbf11b024cc65ea1e84c377df484183be4b | e5021bbf11b024cc65ea1e84c377df484183be4b |
| linux | linux | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < b32559ee4e6667c5c3daf4ec5454c277d1f255d2 | b32559ee4e6667c5c3daf4ec5454c277d1f255d2 |
| linux | linux | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < ab44c182353be101c3be9465e1d15d42130c53c4 | ab44c182353be101c3be9465e1d15d42130c53c4 |
| linux | linux | >= 14baf4d9c739e6e69150512d2eb23c71fffcc192 < 61c80d1c3833e196256fb060382db94f24d3d9a7 | 61c80d1c3833e196256fb060382db94f24d3d9a7 |
| 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 | >= 4.10 < 4.14.303 | 4.14.303 |
| 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 | >= 4.6 < 4.9.337 | 4.9.337 |
| 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
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
vendor_redhat·2025-10-04·CVSS 5.5
CVE-2022-50481 [MEDIUM] CWE-476 kernel: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
kernel: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
If device_register() fails in cxl_register_afu|adapter(), the device
is not added, device_unregister() can not be called in the error path,
otherwise it will cause a null-ptr-deref because of removing not added
device.
As comment of device_register() says, it should use put_device() to give
up the reference in the error path. So split device_unregister() into
device_del() and put_device(), then goes to put dev when register fails.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterpris
Debian
CVE-2022-50481: linux - In the Linux kernel, the following vulnerability has been resolved: cxl: fix po...
vendor_debian·2022·CVSS 5.5
CVE-2022-50481 [MEDIUM] CVE-2022-50481: linux - In the Linux kernel, the following vulnerability has been resolved: cxl: fix po...
In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() If device_register() fails in cxl_register_afu|adapter(), the device is not added, device_unregister() can not be called in the error path, otherwise it will cause a null-ptr-deref because of removing not added device. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So split device_unregister() into device_del() and put_device(), then goes to put dev when register fails.
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-2022-50481: In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() If device_registe
osv·2025-10-04·CVSS 5.5
CVE-2022-50481 [MEDIUM] CVE-2022-50481: In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() If device_registe
In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() If device_register() fails in cxl_register_afu|adapter(), the device is not added, device_unregister() can not be called in the error path, otherwise it will cause a null-ptr-deref because of removing not added device. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So split device_unregister() into device_del() and put_device(), then goes to put dev when register fails.
GHSA
GHSA-2fm3-57pq-4jp3: In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
If device_regis
ghsa_unreviewed·2025-10-04
CVE-2022-50481 [MEDIUM] CWE-476 GHSA-2fm3-57pq-4jp3: In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
If device_regis
In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()
If device_register() fails in cxl_register_afu|adapter(), the device
is not added, device_unregister() can not be called in the error path,
otherwise it will cause a null-ptr-deref because of removing not added
device.
As comment of device_register() says, it should use put_device() to give
up the reference in the error path. So split device_unregister() into
device_del() and put_device(), then goes to put dev when register fails.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/170e8c2d2b61e15e7f7cfeded81bc1e959a15ed8https://git.kernel.org/stable/c/1ae581696b7a799afa39a664c4b721569643f58ahttps://git.kernel.org/stable/c/60b2ed21a65f3f5318666ccd765c3507991370cfhttps://git.kernel.org/stable/c/61c80d1c3833e196256fb060382db94f24d3d9a7https://git.kernel.org/stable/c/96fba6fb95bdede80583c262ac185da09661f264https://git.kernel.org/stable/c/ab44c182353be101c3be9465e1d15d42130c53c4https://git.kernel.org/stable/c/b32559ee4e6667c5c3daf4ec5454c277d1f255d2https://git.kernel.org/stable/c/d775a1da5a52b4f4bb02f2707ba420d1bec48dbbhttps://git.kernel.org/stable/c/e5021bbf11b024cc65ea1e84c377df484183be4b
2025-10-04
Published