ghsa-vq36-qmwm-crh2
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init()
Change num_ghes from int to unsigned int, preventing an overflow and causing subsequent vmalloc() to fail.
The overflow happens in ghes_estatus_pool_init() when calculating len during execution of the statement below as both multiplication operands here are signed int:
len += (num_ghes * GHES_ESOURCE_PREALLOC_MAX_SIZE);
The following call trace is observed because of this bug:
[ 9.317108] swapper/0: vmalloc error: size 18446744071562596352, exceeds total pages, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0-1
[ 9.317131] Call Trace:
[ 9.317134]
[ rjw: Subject and changelog edits ]
{
"affected": [],
"aliases": [
"CVE-2022-49885"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T15:16:13Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: APEI: Fix integer overflow in ghes_estatus_pool_init()\n\nChange num_ghes from int to unsigned int, preventing an overflow\nand causing subsequent vmalloc() to fail.\n\nThe overflow happens in ghes_estatus_pool_init() when calculating\nlen during execution of the statement below as both multiplication\noperands here are signed int:\n\nlen += (num_ghes * GHES_ESOURCE_PREALLOC_MAX_SIZE);\n\nThe following call trace is observed because of this bug:\n\n[ 9.317108] swapper/0: vmalloc error: size 18446744071562596352, exceeds total pages, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0-1\n[ 9.317131] Call Trace:\n[ 9.317134] \u003cTASK\u003e\n[ 9.317137] dump_stack_lvl+0x49/0x5f\n[ 9.317145] dump_stack+0x10/0x12\n[ 9.317146] warn_alloc.cold+0x7b/0xdf\n[ 9.317150] ? __device_attach+0x16a/0x1b0\n[ 9.317155] __vmalloc_node_range+0x702/0x740\n[ 9.317160] ? device_add+0x17f/0x920\n[ 9.317164] ? dev_set_name+0x53/0x70\n[ 9.317166] ? platform_device_add+0xf9/0x240\n[ 9.317168] __vmalloc_node+0x49/0x50\n[ 9.317170] ? ghes_estatus_pool_init+0x43/0xa0\n[ 9.317176] vmalloc+0x21/0x30\n[ 9.317177] ghes_estatus_pool_init+0x43/0xa0\n[ 9.317179] acpi_hest_init+0x129/0x19c\n[ 9.317185] acpi_init+0x434/0x4a4\n[ 9.317188] ? acpi_sleep_proc_init+0x2a/0x2a\n[ 9.317190] do_one_initcall+0x48/0x200\n[ 9.317195] kernel_init_freeable+0x221/0x284\n[ 9.317200] ? rest_init+0xe0/0xe0\n[ 9.317204] kernel_init+0x1a/0x130\n[ 9.317205] ret_from_fork+0x22/0x30\n[ 9.317208] \u003c/TASK\u003e\n\n[ rjw: Subject and changelog edits ]",
"id": "GHSA-vq36-qmwm-crh2",
"modified": "2025-05-01T15:31:51Z",
"published": "2025-05-01T15:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49885"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/43d2748394c3feb86c0c771466f5847e274fc043"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4c10c854113720cbfe75d4f51db79b700a629e73"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9edf20e5a1d805855e78f241cf221d741b50d482"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c50ec15725e005e9fb20bce69b6c23b135a4a9b7"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.