Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource() As 'kdata.num' is user-controlled data, if user tries to allocate memory larger than(>=) MAX_ORDER, then kcalloc() will fail, it creates a stack trace and messes up dmesg with a warning. Call trace: -> privcmd_ioctl --> privcmd_ioctl_mmap_resource Add __GFP_NOWARN in order to avoid too large allocation warning. This is detected by static analysis using smatch.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3ad0876554cafa368f574d4d408468510543e9ff before 5d68ae32d132ea2af73bc223fd64c46f85302a8b; affected 3ad0876554cafa368f574d4d408468510543e9ff before 4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5; affected 3ad0876554cafa368f574d4d408468510543e9ff before 46026bb057c35f5bb111bf95e00cd8366d2e34d4; affected 3ad0876554cafa368f574d4d408468510543e9ff before 0bf874183b32eae2cc20e3c5be38ec3d33e7e564; affected 3ad0876554cafa368f574d4d408468510543e9ff before e0c5f1058ed96f2b7487560c4c4cbd768d13d065; affected 3ad0876554cafa368f574d4d408468510543e9ff before 4da411086f5ab32f811a89ef804980ec106ebb65; affected 3ad0876554cafa368f574d4d408468510543e9ff before 8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79 |
| Linux / Linux | affected 4.18; unaffected 0 before 4.18; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/5d68ae32d132ea2af73bc223fd64c46f85302a8b
- https://git.kernel.org/stable/c/4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5
- https://git.kernel.org/stable/c/46026bb057c35f5bb111bf95e00cd8366d2e34d4
- https://git.kernel.org/stable/c/0bf874183b32eae2cc20e3c5be38ec3d33e7e564
- https://git.kernel.org/stable/c/e0c5f1058ed96f2b7487560c4c4cbd768d13d065
- https://git.kernel.org/stable/c/4da411086f5ab32f811a89ef804980ec106ebb65
- https://git.kernel.org/stable/c/8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79