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https://github.com/fkie-cad/nvd-json-data-feeds.git
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28 lines
4.6 KiB
JSON
28 lines
4.6 KiB
JSON
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{
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"id": "CVE-2023-52506",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-03-02T22:15:47.390",
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"lastModified": "2024-03-02T22:15:47.390",
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"vulnStatus": "Received",
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/19878758accf6b2788091a771d9f9fee7bab11ab",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/b795fb9f5861ee256070d59e33130980a01fadd7",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/f105e893a8edd48bdf4bef9fef845a9ff402f737",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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}
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