CVE-2024-45022

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-45022
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-45022.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-45022
Downstream
Related
Published
2024-09-11T15:13:55.837Z
Modified
2025-11-15T14:55:53.523348Z
Summary
mm/vmalloc: fix page mapping if vm_area_alloc_pages() with high order fallback to order 0
Details

In the Linux kernel, the following vulnerability has been resolved:

mm/vmalloc: fix page mapping if vmareaalloc_pages() with high order fallback to order 0

The _vmappagesrangenoflush() assumes its argument pages* contains pages with the same page shift. However, since commit e9c3cda4d86e ("mm, vmalloc: fix high order __GFP_NOFAIL allocations"), if gfp_flags includes __GFP_NOFAIL with high order in vm_area_alloc_pages() and page allocation failed for high order, the pages* may contain two different page shifts (high order and order-0). This could lead _vmappagesrangenoflush() to perform incorrect mappings, potentially resulting in memory corruption.

Users might encounter this as follows (vmapallowhuge = true, 2M is for PMD_SIZE):

kvmalloc(2M, _GFPNOFAIL|GFPX) _vmallocnoderangenoprof(vmflags=VMALLOWHUGEVMAP) vmareaallocpages(order=9) ---> order-9 allocation failed and fallback to order-0 vmappagesrange() vmappagesrangenoflush() _vmappagesrangenoflush(pageshift = 21) ----> wrong mapping happens

We can remove the fallback code because if a high-order allocation fails, _vmallocnoderangenoprof() will retry with order-0. Therefore, it is unnecessary to fallback to order-0 here. Therefore, fix this by removing the fallback code.

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
fe5c2bdcb14c8612eb5e7a09159801c7219e9ac4
Fixed
fd1ffbb50ef4da5e1378a46616b6d7407dc795da
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e9c3cda4d86e56bf7fe403729f38c4f0f65d3860
Fixed
de7bad86345c43cd040ed43e20d9fad78a3ee59f
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e9c3cda4d86e56bf7fe403729f38c4f0f65d3860
Fixed
c91618816f4d21fc574d7577a37722adcd4075b2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e9c3cda4d86e56bf7fe403729f38c4f0f65d3860
Fixed
61ebe5a747da649057c37be1c37eb934b4af79ca

Affected versions

v6.*

v6.1.100
v6.1.101
v6.1.102
v6.1.103
v6.1.104
v6.1.105
v6.1.106
v6.1.95
v6.1.96
v6.1.97
v6.1.98
v6.1.99
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.10.1
v6.10.2
v6.10.3
v6.10.4
v6.10.5
v6.10.6
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
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
v6.6.5
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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Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.107
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.48
Type
ECOSYSTEM
Events
Introduced
6.3.0
Fixed
6.10.7