{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-29T10:56:54.945","vulnerabilities":[{"cve":{"id":"CVE-2023-53783","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-12-09T01:16:49.547","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nblk-iocost: fix divide by 0 error in calc_lcoefs()\n\necho max of u64 to cost.model can cause divide by 0 error.\n\n  # echo 8:0 rbps=18446744073709551615 > /sys/fs/cgroup/io.cost.model\n\n  divide error: 0000 [#1] PREEMPT SMP\n  RIP: 0010:calc_lcoefs+0x4c/0xc0\n  Call Trace:\n   <TASK>\n   ioc_refresh_params+0x2b3/0x4f0\n   ioc_cost_model_write+0x3cb/0x4c0\n   ? _copy_from_iter+0x6d/0x6c0\n   ? kernfs_fop_write_iter+0xfc/0x270\n   cgroup_file_write+0xa0/0x200\n   kernfs_fop_write_iter+0x17d/0x270\n   vfs_write+0x414/0x620\n   ksys_write+0x73/0x160\n   __x64_sys_write+0x1e/0x30\n   do_syscall_64+0x35/0x80\n   entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\ncalc_lcoefs() uses the input value of cost.model in DIV_ROUND_UP_ULL,\noverflow would happen if bps plus IOC_PAGE_SIZE is greater than\nULLONG_MAX, it can cause divide by 0 error.\n\nFix the problem by setting basecost"}],"metrics":{},"references":[{"url":"https://git.kernel.org/stable/c/3538ade9d8c2ba41088e395de916f2599fadba8f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6e291810fe83a384700eb24a1f714966391ed562","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/984af1e66b4126cf145153661cc24c213e2ec231","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9e8bf9f95f7a299fa9ea45b678d001806ad5e12c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b96d7b4a9745fbd0c8384608ceb1f50415e862fa","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bf8eb1fd6110871e6232e8e7efe399276ef7e6f6","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}]}}]}