{"id":"CVE-2024-41083","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-41083","generatedAt":"2026-10-28T03:42:03.428Z","title":"In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_page_mkwrite() to check folio->mapping is valid Fix netfs_page_mkwrite() to check that folio->mapping is valid once it has taken the folio lock (as…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix netfs_page_mkwrite() to check folio->mapping is valid\n\nFix netfs_page_mkwrite() to check that folio->mapping is valid once it has\ntaken the folio lock (as filemap_page_mkwrite() does).  Without this,\ngeneric/247 occasionally oopses with something like the following:\n\n    BUG: kernel NULL pointer dereference, address: 0000000000000000\n    #PF: supervisor read access in kernel mode\n    #PF: error_code(0x0000) - not-present page\n\n    RIP: 0010:trace_event_raw_event_netfs_folio+0x61/0xc0\n    ...\n    Call Trace:\n     <TASK>\n     ? __die_body+0x1a/0x60\n     ? page_fault_oops+0x6e/0xa0\n     ? exc_page_fault+0xc2/0xe0\n     ? asm_exc_page_fault+0x22/0x30\n     ? trace_event_raw_event_netfs_folio+0x61/0xc0\n     trace_netfs_folio+0x39/0x40\n     netfs_page_mkwrite+0x14c/0x1d0\n     do_page_mkwrite+0x50/0x90\n     do_pte_missing+0x184/0x200\n     __handle_mm_fault+0x42d/0x500\n     handle_mm_fault+0x121/0x1f0\n     do_user_addr_fault+0x23e/0x3c0\n     exc_page_fault+0xc2/0xe0\n     asm_exc_page_fault+0x22/0x30\n\nThis is due to the invalidate_inode_pages2_range() issued at the end of the\nDIO write interfering with the mmap'd writes.","published":"2024-07-29T16:15:04.000Z","lastModified":"2026-06-17T07:47:15.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["linux/linux kernel"],"epss":{"score":0.00196,"percentile":0.09247,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/3473eb87afd402e415a8ca885b284ea0420dde25","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a81c98bfa40c11f8ea79b5a9b3f5fda73bfbb4d2","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3473eb87afd402e415a8ca885b284ea0420dde25","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/a81c98bfa40c11f8ea79b5a9b3f5fda73bfbb4d2","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-41083","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}