CVE-2024-56677
- Source
- https://cve.org/CVERecord?id=CVE-2024-56677
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56677.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-56677
- Downstream
- Related
- Published
- 2024-12-28T09:46:06.497Z
- Modified
- 2026-03-12T16:29:08.018110Z
- Summary
- powerpc/fadump: Move fadump_cma_init to setup_arch() after initmem_init()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
powerpc/fadump: Move fadumpcmainit to setuparch() after initmeminit()
During early init CMAMINALIGNMENTBYTES can be PAGESIZE, since pageblockorder is still zero and it gets initialized later during initmeminit() e.g. setuparch() -> initmeminit() -> sparseinit() -> setpageblock_order()
One such use case where this causes issue is - earlysetup() -> earlyinitdevtree() -> fadumpreservemem() -> fadumpcma_init()
This causes CMA memory alignment check to be bypassed in cmainitreservedmem(). Then later cmaactivatearea() can hit a VMBUGONPAGE(pfn & ((1 << order) - 1)) if the reserved memory area was not pageblock_order aligned.
Fix it by moving the fadumpcmainit() after initmem_init(), where other such cma reservations also gets called.
<stack trace>
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10010 flags: 0x13ffff800000000(node=1|zone=0|lastcpupid=0x7ffff) CMA raw: 013ffff800000000 5deadbeef0000100 5deadbeef0000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: VMBUGONPAGE(pfn & ((1 << order) - 1)) ------------[ cut here ]------------ kernel BUG at mm/pagealloc.c:778!
Call Trace: __freeonepage+0x57c/0x7b0 (unreliable) freepcppagesbulk+0x1a8/0x2c8 freeunrefpagecommit+0x3d4/0x4e4 freeunrefpage+0x458/0x6d0 initcmareservedpageblock+0x114/0x198 cmainitreservedareas+0x270/0x3e0 dooneinitcall+0x80/0x2f8 kernelinitfreeable+0x33c/0x530 kernelinit+0x34/0x26c retfromkerneluserthread+0x14/0x1c
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56677.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/05b94cae1c47f94588c3e7096963c1007c4d9c1d
- https://git.kernel.org/stable/c/7351c5a6507b4401aeecadb5959131410a339520
- https://git.kernel.org/stable/c/aabef6301dcf410dfd2b8759cd413b2a003c7e3f
- https://git.kernel.org/stable/c/c5c1d1ef70834013fc3bd12b6a0f4664c6d75a74
- https://git.kernel.org/stable/c/f551637fe9bf863386309e03f9d148d97f535ad1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56677.json
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-56677
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
-
Introduced11ac3e87ce09c27f4587a8c4fe0829d814021a82Fixedaabef6301dcf410dfd2b8759cd413b2a003c7e3fFixedc5c1d1ef70834013fc3bd12b6a0f4664c6d75a74Fixedf551637fe9bf863386309e03f9d148d97f535ad1Fixed7351c5a6507b4401aeecadb5959131410a339520Fixed05b94cae1c47f94588c3e7096963c1007c4d9c1d
Affected versions
v5.*
v5.18
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.100
v6.1.101
v6.1.102
v6.1.103
v6.1.104
v6.1.105
v6.1.106
v6.1.107
v6.1.108
v6.1.109
v6.1.11
v6.1.110
v6.1.111
v6.1.112
v6.1.113
v6.1.114
v6.1.115
v6.1.116
v6.1.117
v6.1.118
v6.1.119
v6.1.12
v6.1.13
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.21
v6.1.22
v6.1.23
v6.1.24
v6.1.25
v6.1.26
v6.1.27
v6.1.28
v6.1.29
v6.1.3
v6.1.30
v6.1.31
v6.1.32
v6.1.33
v6.1.34
v6.1.35
v6.1.36
v6.1.37
v6.1.38
v6.1.39
v6.1.4
v6.1.40
v6.1.41
v6.1.42
v6.1.43
v6.1.44
v6.1.45
v6.1.46
v6.1.47
v6.1.48
v6.1.49
v6.1.5
v6.1.50
v6.1.51
v6.1.52
v6.1.53
v6.1.54
v6.1.55
v6.1.56
v6.1.57
v6.1.58
v6.1.59
v6.1.6
v6.1.60
v6.1.61
v6.1.62
v6.1.63
v6.1.64
v6.1.65
v6.1.66
v6.1.67
v6.1.68
v6.1.69
v6.1.7
v6.1.70
v6.1.71
v6.1.72
v6.1.73
v6.1.74
v6.1.75
v6.1.76
v6.1.77
v6.1.78
v6.1.79
v6.1.8
v6.1.80
v6.1.81
v6.1.82
v6.1.83
v6.1.84
v6.1.85
v6.1.86
v6.1.87
v6.1.88
v6.1.89
v6.1.9
v6.1.90
v6.1.91
v6.1.92
v6.1.93
v6.1.94
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
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.11.1
v6.11.10
v6.11.2
v6.11.3
v6.11.4
v6.11.5
v6.11.6
v6.11.7
v6.11.8
v6.11.9
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
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
v6.6.48
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
v6.6.60
v6.6.61
v6.6.62
v6.6.63
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
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56677.json"
vanir_signatures
[
{
"signature_version": "v1",
"target": {
"file": "arch/powerpc/include/asm/fadump.h"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@aabef6301dcf410dfd2b8759cd413b2a003c7e3f",
"deprecated": false,
"digest": {
"line_hashes": [
"102898822487046141867529547351168346553",
"49669679680608470128030332536092119207"
],
"threshold": 0.9
},
"id": "CVE-2024-56677-0d6df029",
"signature_type": "Line"
},
{
"signature_version": "v1",
"target": {
"file": "arch/powerpc/kernel/fadump.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@aabef6301dcf410dfd2b8759cd413b2a003c7e3f",
"deprecated": false,
"digest": {
"line_hashes": [
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"163744180584835612918084981501962674421",
"115752941142540810511046865232522579849",
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],
"threshold": 0.9
},
"id": "CVE-2024-56677-11b0cca3",
"signature_type": "Line"
},
{
"signature_version": "v1",
"target": {
"file": "arch/powerpc/kernel/fadump.c",
"function": "fadump_cma_init"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@aabef6301dcf410dfd2b8759cd413b2a003c7e3f",
"deprecated": false,
"digest": {
"function_hash": "140537749400377849723197340029728633788",
"length": 35.0
},
"id": "CVE-2024-56677-14d368af",
"signature_type": "Function"
},
{
"signature_version": "v1",
"target": {
"file": "arch/powerpc/kernel/setup-common.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@aabef6301dcf410dfd2b8759cd413b2a003c7e3f",
"deprecated": false,
"digest": {
"line_hashes": [
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"216023651311028286029608246211954610738"
],
"threshold": 0.9
},
"id": "CVE-2024-56677-77444c46",
"signature_type": "Line"
},
{
"signature_version": "v1",
"target": {
"file": "arch/powerpc/kernel/fadump.c",
"function": "fadump_cma_init"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@aabef6301dcf410dfd2b8759cd413b2a003c7e3f",
"deprecated": false,
"digest": {
"function_hash": "127429712186075044110221760988215129515",
"length": 750.0
},
"id": "CVE-2024-56677-8ace2af8",
"signature_type": "Function"
},
{
"signature_version": "v1",
"target": {
"file": "arch/powerpc/kernel/fadump.c",
"function": "fadump_reserve_mem"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@aabef6301dcf410dfd2b8759cd413b2a003c7e3f",
"deprecated": false,
"digest": {
"function_hash": "288376211405508006683302126323222839076",
"length": 2299.0
},
"id": "CVE-2024-56677-c29a4006",
"signature_type": "Function"
},
{
"signature_version": "v1",
"target": {
"file": "arch/powerpc/kernel/setup-common.c",
"function": "setup_arch"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@aabef6301dcf410dfd2b8759cd413b2a003c7e3f",
"deprecated": false,
"digest": {
"function_hash": "102069987276420715254460891743761716030",
"length": 1024.0
},
"id": "CVE-2024-56677-d545e14a",
"signature_type": "Function"
}
]