| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "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" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/powerpc/include/asm/fadump.h", |
| "arch/powerpc/kernel/fadump.c", |
| "arch/powerpc/kernel/setup-common.c" |
| ], |
| "versions": [ |
| { |
| "version": "11ac3e87ce09c27f4587a8c4fe0829d814021a82", |
| "lessThan": "aabef6301dcf410dfd2b8759cd413b2a003c7e3f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "11ac3e87ce09c27f4587a8c4fe0829d814021a82", |
| "lessThan": "c5c1d1ef70834013fc3bd12b6a0f4664c6d75a74", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "11ac3e87ce09c27f4587a8c4fe0829d814021a82", |
| "lessThan": "f551637fe9bf863386309e03f9d148d97f535ad1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "11ac3e87ce09c27f4587a8c4fe0829d814021a82", |
| "lessThan": "7351c5a6507b4401aeecadb5959131410a339520", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "11ac3e87ce09c27f4587a8c4fe0829d814021a82", |
| "lessThan": "05b94cae1c47f94588c3e7096963c1007c4d9c1d", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/powerpc/include/asm/fadump.h", |
| "arch/powerpc/kernel/fadump.c", |
| "arch/powerpc/kernel/setup-common.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.19", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.19", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.120", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.64", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.11", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.2", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.1.120" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.6.64" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.11.11" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.12.2" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/aabef6301dcf410dfd2b8759cd413b2a003c7e3f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/c5c1d1ef70834013fc3bd12b6a0f4664c6d75a74" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f551637fe9bf863386309e03f9d148d97f535ad1" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7351c5a6507b4401aeecadb5959131410a339520" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/05b94cae1c47f94588c3e7096963c1007c4d9c1d" |
| } |
| ], |
| "title": "powerpc/fadump: Move fadump_cma_init to setup_arch() after initmem_init()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-56677", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
