CVE-2022-50226
published 2025-06-18CVE-2022-50226: In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak For some…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.19%
9.2th percentile
In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
For some sev ioctl interfaces, input may be passed that is less than or
equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP
firmware returns. In this case, kmalloc will allocate memory that is the
size of the input rather than the size of the data. Since PSP firmware
doesn't fully overwrite the buffer, the sev ioctl interfaces with the
issue may return uninitialized slab memory.
Currently, all of the ioctl interfaces in the ccp driver are safe, but
to prevent future problems, change all ioctl interfaces that allocate
memory with kmalloc to use kzalloc and memset the data buffer to zero
in sev_ioctl_do_platform_status.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.2-1 (bookworm) | linux 6.0.2-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= e799035609e1526761aa2f896a974b233d04d36d < 4c5300f6f5e18b11c02a92f136e69b98fddba15e | 4c5300f6f5e18b11c02a92f136e69b98fddba15e |
| linux | linux | >= e799035609e1526761aa2f896a974b233d04d36d < f2a920daa780956b987c14b9f23de7c3c8915bf2 | f2a920daa780956b987c14b9f23de7c3c8915bf2 |
| linux | linux | >= e799035609e1526761aa2f896a974b233d04d36d < caa395aa16e7c9193fd7fa6cde462dd8229d4953 | caa395aa16e7c9193fd7fa6cde462dd8229d4953 |
| linux | linux | >= e799035609e1526761aa2f896a974b233d04d36d < e11fb0a3a39bb42da35fa662c46ce7391f277436 | e11fb0a3a39bb42da35fa662c46ce7391f277436 |
| linux | linux | >= e799035609e1526761aa2f896a974b233d04d36d < 13dc15a3f5fd7f884e4bfa8c011a0ae868df12ae | 13dc15a3f5fd7f884e4bfa8c011a0ae868df12ae |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 4.16 < 5.10.173 | 5.10.173 |
| linux | linux_kernel | >= 5.11 < 5.15.61 | 5.15.61 |
| linux | linux_kernel | >= 5.16 < 5.18.18 | 5.18.18 |
| linux | linux_kernel | >= 5.19 < 5.19.2 | 5.19.2 |
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-2022-50226: In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak F
osv·2025-06-18·CVSS 5.5
CVE-2022-50226 [MEDIUM] CVE-2022-50226: In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak F
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak For some sev ioctl interfaces, input may be passed that is less than or equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP firmware returns. In this case, kmalloc will allocate memory that is the size of the input rather than the size of the data. Since PSP firmware doesn't fully overwrite the buffer, the sev ioctl interfaces with the issue may return uninitialized slab memory. Currently, all of the ioctl interfaces in the ccp driver are safe, but to prevent future problems, change all ioctl interfaces that allocate memory with kmalloc to use kzalloc and memset the data buffer to zero in sev_ioctl_do_platform_status.
GHSA
GHSA-mfvg-pvv5-35g8: In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
ghsa_unreviewed·2025-06-18
CVE-2022-50226 [MEDIUM] CWE-401 GHSA-mfvg-pvv5-35g8: In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
For some sev ioctl interfaces, input may be passed that is less than or
equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP
firmware returns. In this case, kmalloc will allocate memory that is the
size of the input rather than the size of the data. Since PSP firmware
doesn't fully overwrite the buffer, the sev ioctl interfaces with the
issue may return uninitialized slab memory.
Currently, all of the ioctl interfaces in the ccp driver are safe, but
to prevent future problems, change all ioctl interfaces that allocate
memory with kmalloc to use kzalloc and memset the data buffer to zero
in sev_ioctl_do_platform_status.
Red Hat
kernel: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
vendor_redhat·2025-06-18·CVSS 5.5
CVE-2022-50226 [MEDIUM] kernel: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
kernel: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
For some sev ioctl interfaces, input may be passed that is less than or
equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP
firmware returns. In this case, kmalloc will allocate memory that is the
size of the input rather than the size of the data. Since PSP firmware
doesn't fully overwrite the buffer, the sev ioctl interfaces with the
issue may return uninitialized slab memory.
Currently, all of the ioctl interfaces in the ccp driver are safe, but
to prevent future problems, change all ioctl interfaces that allocate
memory with kmalloc to us
Debian
CVE-2022-50226: linux - In the Linux kernel, the following vulnerability has been resolved: crypto: ccp...
vendor_debian·2022·CVSS 5.5
CVE-2022-50226 [MEDIUM] CVE-2022-50226: linux - In the Linux kernel, the following vulnerability has been resolved: crypto: ccp...
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak For some sev ioctl interfaces, input may be passed that is less than or equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP firmware returns. In this case, kmalloc will allocate memory that is the size of the input rather than the size of the data. Since PSP firmware doesn't fully overwrite the buffer, the sev ioctl interfaces with the issue may return uninitialized slab memory. Currently, all of the ioctl interfaces in the ccp driver are safe, but to prevent future problems, change all ioctl interfaces that allocate memory with kmalloc to use kzalloc and memset the data buffer to zero in sev_ioctl_do_platform_status.
Scope: local
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/13dc15a3f5fd7f884e4bfa8c011a0ae868df12aehttps://git.kernel.org/stable/c/4c5300f6f5e18b11c02a92f136e69b98fddba15ehttps://git.kernel.org/stable/c/caa395aa16e7c9193fd7fa6cde462dd8229d4953https://git.kernel.org/stable/c/e11fb0a3a39bb42da35fa662c46ce7391f277436https://git.kernel.org/stable/c/f2a920daa780956b987c14b9f23de7c3c8915bf2
2025-06-18
Published