| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Set all reserved memblocks on Node#0 at initialization\n\nAfter commit 61167ad5fecdea (\"mm: pass nid to reserve_bootmem_region()\")\nwe get a panic if DEFERRED_STRUCT_PAGE_INIT is enabled:\n\n[ 0.000000] CPU 0 Unable to handle kernel paging request at virtual address 0000000000002b82, era == 90000000040e3f28, ra == 90000000040e3f18\n[ 0.000000] Oops[#1]:\n[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 6.5.0+ #733\n[ 0.000000] pc 90000000040e3f28 ra 90000000040e3f18 tp 90000000046f4000 sp 90000000046f7c90\n[ 0.000000] a0 0000000000000001 a1 0000000000200000 a2 0000000000000040 a3 90000000046f7ca0\n[ 0.000000] a4 90000000046f7ca4 a5 0000000000000000 a6 90000000046f7c38 a7 0000000000000000\n[ 0.000000] t0 0000000000000002 t1 9000000004b00ac8 t2 90000000040e3f18 t3 90000000040f0800\n[ 0.000000] t4 00000000000f0000 t5 80000000ffffe07e t6 0000000000000003 t7 900000047fff5e20\n[ 0.000000] t8 aaaaaaaaaaaaaaab u0 0000000000000018 s9 0000000000000000 s0 fffffefffe000000\n[ 0.000000] s1 0000000000000000 s2 0000000000000080 s3 0000000000000040 s4 0000000000000000\n[ 0.000000] s5 0000000000000000 s6 fffffefffe000000 s7 900000000470b740 s8 9000000004ad4000\n[ 0.000000] ra: 90000000040e3f18 reserve_bootmem_region+0xec/0x21c\n[ 0.000000] ERA: 90000000040e3f28 reserve_bootmem_region+0xfc/0x21c\n[ 0.000000] CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE)\n[ 0.000000] PRMD: 00000000 (PPLV0 -PIE -PWE)\n[ 0.000000] EUEN: 00000000 (-FPE -SXE -ASXE -BTE)\n[ 0.000000] ECFG: 00070800 (LIE=11 VS=7)\n[ 0.000000] ESTAT: 00010800 [PIL] (IS=11 ECode=1 EsubCode=0)\n[ 0.000000] BADV: 0000000000002b82\n[ 0.000000] PRID: 0014d000 (Loongson-64bit, Loongson-3A6000)\n[ 0.000000] Modules linked in:\n[ 0.000000] Process swapper (pid: 0, threadinfo=(____ptrval____), task=(____ptrval____))\n[ 0.000000] Stack : 0000000000000000 9000000002eb5430 0000003a00000020 90000000045ccd00\n[ 0.000000] 900000000470e000 90000000002c1918 0000000000000000 9000000004110780\n[ 0.000000] 00000000fe6c0000 0000000480000000 9000000004b4e368 9000000004110748\n[ 0.000000] 0000000000000000 900000000421ca84 9000000004620000 9000000004564970\n[ 0.000000] 90000000046f7d78 9000000002cc9f70 90000000002c1918 900000000470e000\n[ 0.000000] 9000000004564970 90000000040bc0e0 90000000046f7d78 0000000000000000\n[ 0.000000] 0000000000004000 90000000045ccd00 0000000000000000 90000000002c1918\n[ 0.000000] 90000000002c1900 900000000470b700 9000000004b4df78 9000000004620000\n[ 0.000000] 90000000046200a8 90000000046200a8 0000000000000000 9000000004218b2c\n[ 0.000000] 9000000004270008 0000000000000001 0000000000000000 90000000045ccd00\n[ 0.000000] ...\n[ 0.000000] Call Trace:\n[ 0.000000] [<90000000040e3f28>] reserve_bootmem_region+0xfc/0x21c\n[ 0.000000] [<900000000421ca84>] memblock_free_all+0x114/0x350\n[ 0.000000] [<9000000004218b2c>] mm_core_init+0x138/0x3cc\n[ 0.000000] [<9000000004200e38>] start_kernel+0x488/0x7a4\n[ 0.000000] [<90000000040df0d8>] kernel_entry+0xd8/0xdc\n[ 0.000000]\n[ 0.000000] Code: 02eb21ad 00410f4c 380c31ac <262b818d> 6800b70d 02c1c196 0015001c 57fe4bb1 260002cd\n\nThe reason is early memblock_reserve() in memblock_init() set node id to\nMAX_NUMNODES, making NODE_DATA(nid) a NULL dereference in the call chain\nreserve_bootmem_region() -> init_reserved_page(). After memblock_init(),\nthose late calls of memblock_reserve() operate on subregions of memblock\n.memory regions. As a result, these reserved regions will be set to the\ncorrect node at the first iteration of memmap_init_reserved_pages().\n\nSo set all reserved memblocks on Node#0 at initialization can avoid this\npanic." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/loongarch/kernel/mem.c" |
| ], |
| "versions": [ |
| { |
| "version": "fa96b57c149061f71a70bd6582d995f6424fbbf4", |
| "lessThan": "f105e893a8edd48bdf4bef9fef845a9ff402f737", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "fa96b57c149061f71a70bd6582d995f6424fbbf4", |
| "lessThan": "19878758accf6b2788091a771d9f9fee7bab11ab", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "fa96b57c149061f71a70bd6582d995f6424fbbf4", |
| "lessThan": "b795fb9f5861ee256070d59e33130980a01fadd7", |
| "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/loongarch/kernel/mem.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.19", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.19", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.56", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.5.6", |
| "lessThanOrEqual": "6.5.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6", |
| "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": "6.1.56" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.5.6" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19", |
| "versionEndExcluding": "6.6" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/f105e893a8edd48bdf4bef9fef845a9ff402f737" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/19878758accf6b2788091a771d9f9fee7bab11ab" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b795fb9f5861ee256070d59e33130980a01fadd7" |
| } |
| ], |
| "title": "LoongArch: Set all reserved memblocks on Node#0 at initialization", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2023-52506", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
