mirror of
https://github.com/CVEProject/cvelist.git
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135 lines
7.8 KiB
JSON
135 lines
7.8 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2024-56677",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/fadump: Move fadump_cma_init to setup_arch() after initmem_init()\n\nDuring early init CMA_MIN_ALIGNMENT_BYTES can be PAGE_SIZE,\nsince pageblock_order is still zero and it gets initialized\nlater during initmem_init() e.g.\nsetup_arch() -> initmem_init() -> sparse_init() -> set_pageblock_order()\n\nOne such use case where this causes issue is -\nearly_setup() -> early_init_devtree() -> fadump_reserve_mem() -> fadump_cma_init()\n\nThis causes CMA memory alignment check to be bypassed in\ncma_init_reserved_mem(). Then later cma_activate_area() can hit\na VM_BUG_ON_PAGE(pfn & ((1 << order) - 1)) if the reserved memory\narea was not pageblock_order aligned.\n\nFix it by moving the fadump_cma_init() after initmem_init(),\nwhere other such cma reservations also gets called.\n\n<stack trace>\n==============\npage: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10010\nflags: 0x13ffff800000000(node=1|zone=0|lastcpupid=0x7ffff) CMA\nraw: 013ffff800000000 5deadbeef0000100 5deadbeef0000122 0000000000000000\nraw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000\npage dumped because: VM_BUG_ON_PAGE(pfn & ((1 << order) - 1))\n------------[ cut here ]------------\nkernel BUG at mm/page_alloc.c:778!\n\nCall Trace:\n__free_one_page+0x57c/0x7b0 (unreliable)\nfree_pcppages_bulk+0x1a8/0x2c8\nfree_unref_page_commit+0x3d4/0x4e4\nfree_unref_page+0x458/0x6d0\ninit_cma_reserved_pageblock+0x114/0x198\ncma_init_reserved_areas+0x270/0x3e0\ndo_one_initcall+0x80/0x2f8\nkernel_init_freeable+0x33c/0x530\nkernel_init+0x34/0x26c\nret_from_kernel_user_thread+0x14/0x1c"
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "11ac3e87ce09c27f4587a8c4fe0829d814021a82",
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"version_value": "aabef6301dcf410dfd2b8759cd413b2a003c7e3f"
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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{
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"version": "5.19",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.19",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.120",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.64",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.11.11",
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"lessThanOrEqual": "6.11.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.2",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.13-rc1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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],
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"defaultStatus": "affected"
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}
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}
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]
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}
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}
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]
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}
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}
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]
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}
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},
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"references": {
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"reference_data": [
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{
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"url": "https://git.kernel.org/stable/c/aabef6301dcf410dfd2b8759cd413b2a003c7e3f",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/aabef6301dcf410dfd2b8759cd413b2a003c7e3f"
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},
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{
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"url": "https://git.kernel.org/stable/c/c5c1d1ef70834013fc3bd12b6a0f4664c6d75a74",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/c5c1d1ef70834013fc3bd12b6a0f4664c6d75a74"
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},
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{
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"url": "https://git.kernel.org/stable/c/f551637fe9bf863386309e03f9d148d97f535ad1",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/f551637fe9bf863386309e03f9d148d97f535ad1"
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},
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{
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"url": "https://git.kernel.org/stable/c/7351c5a6507b4401aeecadb5959131410a339520",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/7351c5a6507b4401aeecadb5959131410a339520"
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},
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{
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"url": "https://git.kernel.org/stable/c/05b94cae1c47f94588c3e7096963c1007c4d9c1d",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/05b94cae1c47f94588c3e7096963c1007c4d9c1d"
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}
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]
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},
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"generator": {
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"engine": "bippy-5f407fcff5a0"
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}
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} |