CVE-2022-50244
published 2025-09-15CVE-2022-50244: In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_pci_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_pci_init_afu|adapter()
If device_register() fails in cxl_pci_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 | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 82e68432668ae75b4c814d160f6987ecb0681273 | 82e68432668ae75b4c814d160f6987ecb0681273 |
| linux | linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 82e5481428faf11c79b9c094dd24a1849bbf64ac | 82e5481428faf11c79b9c094dd24a1849bbf64ac |
| linux | linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < c4b2e35df919d99bbbed033c2fa0b607f9f463b5 | c4b2e35df919d99bbbed033c2fa0b607f9f463b5 |
| linux | linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 361412dae1690d4b5df6f92fc943cdc773c95cbc | 361412dae1690d4b5df6f92fc943cdc773c95cbc |
| linux | linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec | 0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec |
| linux | linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 22511eefa61db26e12c97dd7ada3071dbdfcb004 | 22511eefa61db26e12c97dd7ada3071dbdfcb004 |
| linux | linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 139abd4c626a6f7ce02789ed5f73aa2256e0542b | 139abd4c626a6f7ce02789ed5f73aa2256e0542b |
| linux | linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339 | 2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339 |
| linux | linux | >= f204e0b8cedd7da1dfcfd05ed6b7692737e24029 < 02cd3032b154fa02fdf90e7467abaeed889330b2 | 02cd3032b154fa02fdf90e7467abaeed889330b2 |
| 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 | >= 3.18 < 4.9.337 | 4.9.337 |
| 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 | >= 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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OSV
CVE-2022-50244: In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter() If device_register(
osv·2025-09-15·CVSS 5.5
CVE-2022-50244 [MEDIUM] CVE-2022-50244: In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter() If device_register(
In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter() If device_register() fails in cxl_pci_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-jfcj-m759-47m9: In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
If device_registe
ghsa_unreviewed·2025-09-15
CVE-2022-50244 [MEDIUM] CWE-476 GHSA-jfcj-m759-47m9: In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
If device_registe
In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
If device_register() fails in cxl_pci_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.
Red Hat
kernel: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
vendor_redhat·2025-09-15·CVSS 5.5
CVE-2022-50244 [MEDIUM] CWE-476 kernel: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
kernel: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
In the Linux kernel, the following vulnerability has been resolved:
cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()
If device_register() fails in cxl_pci_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 Enterprise Linux 7
Debian
CVE-2022-50244: linux - In the Linux kernel, the following vulnerability has been resolved: cxl: fix po...
vendor_debian·2022·CVSS 5.5
CVE-2022-50244 [MEDIUM] CVE-2022-50244: 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_pci_init_afu|adapter() If device_register() fails in cxl_pci_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)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/02cd3032b154fa02fdf90e7467abaeed889330b2https://git.kernel.org/stable/c/0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdechttps://git.kernel.org/stable/c/139abd4c626a6f7ce02789ed5f73aa2256e0542bhttps://git.kernel.org/stable/c/22511eefa61db26e12c97dd7ada3071dbdfcb004https://git.kernel.org/stable/c/2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339https://git.kernel.org/stable/c/361412dae1690d4b5df6f92fc943cdc773c95cbchttps://git.kernel.org/stable/c/82e5481428faf11c79b9c094dd24a1849bbf64achttps://git.kernel.org/stable/c/82e68432668ae75b4c814d160f6987ecb0681273https://git.kernel.org/stable/c/c4b2e35df919d99bbbed033c2fa0b607f9f463b5
2025-09-15
Published