2024-07-14 02:06:08 +00:00

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{
"id": "CVE-2024-36882",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-05-30T16:15:11.803",
"lastModified": "2024-05-30T18:18:58.870",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: use memalloc_nofs_save() in page_cache_ra_order()\n\nSee commit f2c817bed58d (\"mm: use memalloc_nofs_save in readahead path\"),\nensure that page_cache_ra_order() do not attempt to reclaim file-backed\npages too, or it leads to a deadlock, found issue when test ext4 large\nfolio.\n\n INFO: task DataXceiver for:7494 blocked for more than 120 seconds.\n \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n task:DataXceiver for state:D stack:0 pid:7494 ppid:1 flags:0x00000200\n Call trace:\n __switch_to+0x14c/0x240\n __schedule+0x82c/0xdd0\n schedule+0x58/0xf0\n io_schedule+0x24/0xa0\n __folio_lock+0x130/0x300\n migrate_pages_batch+0x378/0x918\n migrate_pages+0x350/0x700\n compact_zone+0x63c/0xb38\n compact_zone_order+0xc0/0x118\n try_to_compact_pages+0xb0/0x280\n __alloc_pages_direct_compact+0x98/0x248\n __alloc_pages+0x510/0x1110\n alloc_pages+0x9c/0x130\n folio_alloc+0x20/0x78\n filemap_alloc_folio+0x8c/0x1b0\n page_cache_ra_order+0x174/0x308\n ondemand_readahead+0x1c8/0x2b8\n page_cache_async_ra+0x68/0xb8\n filemap_readahead.isra.0+0x64/0xa8\n filemap_get_pages+0x3fc/0x5b0\n filemap_splice_read+0xf4/0x280\n ext4_file_splice_read+0x2c/0x48 [ext4]\n vfs_splice_read.part.0+0xa8/0x118\n splice_direct_to_actor+0xbc/0x288\n do_splice_direct+0x9c/0x108\n do_sendfile+0x328/0x468\n __arm64_sys_sendfile64+0x8c/0x148\n invoke_syscall+0x4c/0x118\n el0_svc_common.constprop.0+0xc8/0xf0\n do_el0_svc+0x24/0x38\n el0_svc+0x4c/0x1f8\n el0t_64_sync_handler+0xc0/0xc8\n el0t_64_sync+0x188/0x190"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: use memalloc_nofs_save() en page_cache_ra_order() Consulte el commit f2c817bed58d (\"mm: use memalloc_nofs_save en la ruta de lectura anticipada\"), aseg\u00farese de que page_cache_ra_order() no intente recuperar archivos respaldados p\u00e1ginas tambi\u00e9n, o conduce a un punto muerto, se encontr\u00f3 un problema al probar el folio grande ext4. INFORMACI\u00d3N: tarea DataXceiver para:7494 bloqueada durante m\u00e1s de 120 segundos. \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" desactiva este mensaje. tarea:DataXceiver para estado:D pila:0 pid:7494 ppid:1 banderas:0x00000200 Rastreo de llamadas: __switch_to+0x14c/0x240 __schedule+0x82c/0xdd0 Schedule+0x58/0xf0 io_schedule+0x24/0xa0 __folio_lock+0x130/0x300 _lote+0x378 /0x918 migrar_p\u00e1ginas+0x350/0x700 compact_zone+0x63c/0xb38 compact_zone_order+0xc0/0x118 try_to_compact_pages+0xb0/0x280 __alloc_pages_direct_compact+0x98/0x248 __alloc_pages+0x510/0x1110 alloc_pages+0 x9c/0x130 folio_alloc+0x20/0x78 filemap_alloc_folio+0x8c/0x1b0 page_cache_ra_order+0x174 /0x308 ondemand_readahead+0x1c8/0x2b8 page_cache_async_ra+0x68/0xb8 filemap_readahead.isra.0+0x64/0xa8 filemap_get_pages+0x3fc/0x5b0 filemap_splice_read+0xf4/0x280 ext4_file_splice_read+0x2c/0x48 [ext4] vfs_splice_read.part.0+0xa8/0x118 empalme_direct_to_actor+ 0xbc/0x288 do_splice_direct+0x9c/0x108 do_sendfile+0x328/0x468 __arm64_sys_sendfile64+0x8c/0x148 invoke_syscall+0x4c/0x118 el0_svc_common.constprop.0+0xc8/0xf0 +0x24/0x38 el0_svc+0x4c/0x1f8 el0t_64_sync_handler+0xc0/0xc8 el0t_64_sync+0x188 /0x190"
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/30153e4466647a17eebfced13eede5cbe4290e69",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/468971c3f4b8187f25334503b68050a0e1370147",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7629ef6dda1564098aadeef38e5fbd11ee8627c4",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/cf6a1d16c6df3c30b03f0c6a92a2ba7f86dffb45",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}