CVE-2024-50222
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
iov_iter: fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP
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?
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 908a1ad89466c1febf20bfe0037b84fc66f8a3f8 | affected | git | 4f7ffa83fa79dd52efbaef366c850aaaae06a469 | Unavailable | None listed |
| 908a1ad89466c1febf20bfe0037b84fc66f8a3f8 | affected | git | 3a303409f271dfe0987b8f79595138340497a32d | Unavailable | None listed |
| 908a1ad89466c1febf20bfe0037b84fc66f8a3f8 | affected | git | c749d9b7ebbc5716af7a95f7768634b30d9446ec | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.6 | Unavailable | None listed |
| 6.6.60 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.11.7 | unaffected | semver | Unavailable | 6.11.* | None listed |
| 6.12 | unaffected | original_commit_for_fix | Unavailable | * | None listed |