CVE-2024-50222

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-50222
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50222.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-50222
Downstream
Related
Published
2024-11-09T10:14:33Z
Modified
2025-10-22T04:57:49.703024Z
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?

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
Introduced
908a1ad89466c1febf20bfe0037b84fc66f8a3f8
Fixed
4f7ffa83fa79dd52efbaef366c850aaaae06a469
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
908a1ad89466c1febf20bfe0037b84fc66f8a3f8
Fixed
3a303409f271dfe0987b8f79595138340497a32d
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
908a1ad89466c1febf20bfe0037b84fc66f8a3f8
Fixed
c749d9b7ebbc5716af7a95f7768634b30d9446ec

Affected versions

v6.*

v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.11.1
v6.11.2
v6.11.3
v6.11.4
v6.11.5
v6.11.6
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.5
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.24
v6.6.25
v6.6.26
v6.6.27
v6.6.28
v6.6.29
v6.6.3
v6.6.30
v6.6.31
v6.6.32
v6.6.33
v6.6.34
v6.6.35
v6.6.36
v6.6.37
v6.6.38
v6.6.39
v6.6.4
v6.6.40
v6.6.41
v6.6.42
v6.6.43
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.5
v6.6.50
v6.6.51
v6.6.52
v6.6.53
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.6
v6.6.7
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7

Database specific

vanir_signatures

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        "signature_type": "Line"
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]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.6.0
Fixed
6.6.60
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.11.7