In the Linux kernel, the following vulnerability has been resolved:
iov_iter: fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP
generic/077 on x86_32 CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP=y with highmem,
on huge=always tmpfs, issues a warning and then hangs (interruptibly):
WARNING: CPU: 5 PID: 3517 at mm/highmem.c:622 kunmap_local_indexed+0x62/0xc9
CPU: 5 UID: 0 PID: 3517 Comm: cp Not tainted 6.12.0-rc4 #2
...
copy_page_from_iter_atomic+0xa6/0x5ec
generic_perform_write+0xf6/0x1b4
shmem_file_write_iter+0x54/0x67
Fix copy_page_from_iter_atomic() by limiting it in that case
(include/linux/skbuff.h skb_frag_must_loop() does similar).
But going forward, perhaps CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP is too
surprising, has outlived its usefulness, and should just be removed?
References
Configurations
Configuration 1 (hide)
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History
13 Nov 2024, 19:23
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/3a303409f271dfe0987b8f79595138340497a32d - Patch | |
| References | () https://git.kernel.org/stable/c/4f7ffa83fa79dd52efbaef366c850aaaae06a469 - Patch | |
| References | () https://git.kernel.org/stable/c/c749d9b7ebbc5716af7a95f7768634b30d9446ec - Patch | |
| First Time |
Linux linux Kernel
Linux |
|
| CWE | NVD-CWE-noinfo | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* |
12 Nov 2024, 13:56
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
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09 Nov 2024, 11:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-11-09 11:15
Updated : 2024-11-13 19:23
NVD link : CVE-2024-50222
Mitre link : CVE-2024-50222
CVE.ORG link : CVE-2024-50222
JSON object : View
Products Affected
linux
- linux_kernel
CWE