CVE-2024-50222
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-50222
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50222.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-50222
- Downstream
- Related
- Published
- 2024-11-09T10:14:33.266Z
- Modified
- 2025-11-27T02:32:36.556132Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- iov_iter: fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ioviter: fix copypagefromiteratomic() if KMAPLOCALFORCEMAP
generic/077 on x8632 CONFIGDEBUGKMAPLOCALFORCEMAP=y with highmem, on huge=always tmpfs, issues a warning and then hangs (interruptibly):
WARNING: CPU: 5 PID: 3517 at mm/highmem.c:622 kunmaplocalindexed+0x62/0xc9 CPU: 5 UID: 0 PID: 3517 Comm: cp Not tainted 6.12.0-rc4 #2 ... copypagefromiteratomic+0xa6/0x5ec genericperformwrite+0xf6/0x1b4 shmemfilewrite_iter+0x54/0x67
Fix copypagefromiteratomic() by limiting it in that case (include/linux/skbuff.h skbfragmust_loop() does similar).
But going forward, perhaps CONFIGDEBUGKMAPLOCALFORCE_MAP is too surprising, has outlived its usefulness, and should just be removed?
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/blob/cc431b3424123d84bcd7afd4de150b33f117a8ef/cves/2024/50xxx/CVE-2024-50222.json" }- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced908a1ad89466c1febf20bfe0037b84fc66f8a3f8Fixed4f7ffa83fa79dd52efbaef366c850aaaae06a469
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced908a1ad89466c1febf20bfe0037b84fc66f8a3f8Fixed3a303409f271dfe0987b8f79595138340497a32d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced908a1ad89466c1febf20bfe0037b84fc66f8a3f8Fixedc749d9b7ebbc5716af7a95f7768634b30d9446ec