{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-49875 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-49875 is a high-severity denial of service vulnerability in Linux kernel, published on 21 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-49875 and fix it if it is affected.\n\nWhat it is: CVE-2024-49875 is a high-severity denial of service vulnerability in Linux kernel, published on 21 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-49875 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2024-49875/ (Markdown: https://insights.sbomify.com/CVE-2024-49875/index.md)","id":"CVE-2024-49875","markdown":"https://insights.sbomify.com/CVE-2024-49875/index.md","name":"CVE-2024-49875","record":{"aliases":["AZL-51207","AZL-51222","BELL-CVE-2024-49875","DEBIAN-CVE-2024-49875","GHSA-vcrj-5576-fc99","UBUNTU-CVE-2024-49875"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel NFS","requires_auth":"none","summary":"A missing error code mapping in the Linux kernel NFS server causes a warning and potential service disruption when handling corrupted directory blocks.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-354","name":"Improper Validation of Integrity Check Value"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: map the EBADMSG to nfserr_io to avoid warning\n\nExt4 will throw -EBADMSG through ext4_readdir when a checksum error\noccurs, resulting in the following WARNING.\n\nFix it by mapping EBADMSG to nfserr_io.\n\nnfsd_buffered_readdir\n iterate_dir // -EBADMSG -74\n  ext4_readdir // .iterate_shared\n   ext4_dx_readdir\n    ext4_htree_fill_tree\n     htree_dirblock_to_tree\n      ext4_read_dirblock\n       __ext4_read_dirblock\n        ext4_dirblock_csum_verify\n         warn_no_space_for_csum\n          __warn_no_space_for_csum\n        return ERR_PTR(-EFSBADCRC) // -EBADMSG -74\n nfserrno // WARNING\n\n[  161.115610] ------------[ cut here ]------------\n[  161.116465] nfsd: non-standard errno: -74\n[  161.117315] WARNING: CPU: 1 PID: 780 at fs/nfsd/nfsproc.c:878 nfserrno+0x9d/0xd0\n[  161.118596] Modules linked in:\n[  161.119243] CPU: 1 PID: 780 Comm: nfsd Not tainted 5.10.0-00014-g79679361fd5d #138\n[  161.120684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qe\nmu.org 04/01/2014\n[  161.123601] RIP: 0010:nfserrno+0x9d/0xd0\n[  161.124676] Code: 0f 87 da 30 dd 00 83 e3 01 b8 00 00 00 05 75 d7 44 89 ee 48 c7 c7 c0 57 24 98 89 44 24 04 c6\n 05 ce 2b 61 03 01 e8 99 20 d8 00 \u003c0f\u003e 0b 8b 44 24 04 eb b5 4c 89 e6 48 c7 c7 a0 6d a4 99 e8 cc 15 33\n[  161.127797] RSP: 0018:ffffc90000e2f9c0 EFLAGS: 00010286\n[  161.128794] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\n[  161.130089] RDX: 1ffff1103ee16f6d RSI: 0000000000000008 RDI: fffff520001c5f2a\n[  161.131379] RBP: 0000000000000022 R08: 0000000000000001 R09: ffff8881f70c1827\n[  161.132664] R10: ffffed103ee18304 R11: 0000000000000001 R12: 0000000000000021\n[  161.133949] R13: 00000000ffffffb6 R14: ffff8881317c0000 R15: ffffc90000e2fbd8\n[  161.135244] FS:  0000000000000000(0000) GS:ffff8881f7080000(0000) knlGS:0000000000000000\n[  161.136695] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  161.137761] CR2: 00007fcaad70b348 CR3: 0000000144256006 CR4: 0000000000770ee0\n[  161.139041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  161.140291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  161.141519] PKRU: 55555554\n[  161.142076] Call Trace:\n[  161.142575]  ? __warn+0x9b/0x140\n[  161.143229]  ? nfserrno+0x9d/0xd0\n[  161.143872]  ? report_bug+0x125/0x150\n[  161.144595]  ? handle_bug+0x41/0x90\n[  161.145284]  ? exc_invalid_op+0x14/0x70\n[  161.146009]  ? asm_exc_invalid_op+0x12/0x20\n[  161.146816]  ? nfserrno+0x9d/0xd0\n[  161.147487]  nfsd_buffered_readdir+0x28b/0x2b0\n[  161.148333]  ? nfsd4_encode_dirent_fattr+0x380/0x380\n[  161.149258]  ? nfsd_buffered_filldir+0xf0/0xf0\n[  161.150093]  ? wait_for_concurrent_writes+0x170/0x170\n[  161.151004]  ? generic_file_llseek_size+0x48/0x160\n[  161.151895]  nfsd_readdir+0x132/0x190\n[  161.152606]  ? nfsd4_encode_dirent_fattr+0x380/0x380\n[  161.153516]  ? nfsd_unlink+0x380/0x380\n[  161.154256]  ? override_creds+0x45/0x60\n[  161.155006]  nfsd4_encode_readdir+0x21a/0x3d0\n[  161.155850]  ? nfsd4_encode_readlink+0x210/0x210\n[  161.156731]  ? write_bytes_to_xdr_buf+0x97/0xe0\n[  161.157598]  ? __write_bytes_to_xdr_buf+0xd0/0xd0\n[  161.158494]  ? lock_downgrade+0x90/0x90\n[  161.159232]  ? nfs4svc_decode_voidarg+0x10/0x10\n[  161.160092]  nfsd4_encode_operation+0x15a/0x440\n[  161.160959]  nfsd4_proc_compound+0x718/0xe90\n[  161.161818]  nfsd_dispatch+0x18e/0x2c0\n[  161.162586]  svc_process_common+0x786/0xc50\n[  161.163403]  ? nfsd_svc+0x380/0x380\n[  161.164137]  ? svc_printk+0x160/0x160\n[  161.164846]  ? svc_xprt_do_enqueue.part.0+0x365/0x380\n[  161.165808]  ? nfsd_svc+0x380/0x380\n[  161.166523]  ? rcu_is_watching+0x23/0x40\n[  161.167309]  svc_process+0x1a5/0x200\n[  161.168019]  nfsd+0x1f5/0x380\n[  161.168663]  ? nfsd_shutdown_threads+0x260/0x260\n[  161.169554]  kthread+0x1c4/0x210\n[  161.170224]  ? kthread_insert_work_sanity_check+0x80/0x80\n[  161.171246]  ret_from_fork+0x1f/0x30","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"nfsd: map the EBADMSG to nfserr_io to avoid warning","id":"CVE-2024-49875","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2024"},"n_packages":0,"n_references":7,"next":{"headline":"drm/xe: fix UAF around queue destruction","id":"CVE-2024-49876"},"packages":[],"prev":{"headline":"i3c: master: svc: Fix use after free vulnerability in svc_i3c_master Driver Due to Race Condition","id":"CVE-2024-49874"},"products":["Linux"],"published":"2024-10-21","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A missing error code mapping in the Linux kernel NFS server causes a warning and potential service disruption when handling corrupted directory blocks.","url":"https://insights.sbomify.com/CVE-2024-49875/"}