{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-48918 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-48918 is a medium-severity vulnerability in Linux kernel, published on 22 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-48918 and fix it if it is affected.\n\nWhat it is: CVE-2022-48918 is a medium-severity vulnerability in Linux kernel, published on 22 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-48918 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-2022-48918/ (Markdown: https://insights.sbomify.com/CVE-2022-48918/index.md)","id":"CVE-2022-48918","markdown":"https://insights.sbomify.com/CVE-2022-48918/index.md","name":"CVE-2022-48918","record":{"aliases":["DEBIAN-CVE-2022-48918","GHSA-f2cf-vg85-495f","UBUNTU-CVE-2022-48918"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A null pointer dereference in the iwlwifi kernel module causes a system crash when debugfs is disabled, leading to denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\niwlwifi: mvm: check debugfs_dir ptr before use\n\nWhen \"debugfs=off\" is used on the kernel command line, iwiwifi's\nmvm module uses an invalid/unchecked debugfs_dir pointer and causes\na BUG:\n\n BUG: kernel NULL pointer dereference, address: 000000000000004f\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: 0000 [#1] PREEMPT SMP\n CPU: 1 PID: 503 Comm: modprobe Tainted: G        W         5.17.0-rc5 #7\n Hardware name: Dell Inc. Inspiron 15 5510/076F7Y, BIOS 2.4.1 11/05/2021\n RIP: 0010:iwl_mvm_dbgfs_register+0x692/0x700 [iwlmvm]\n Code: 69 a0 be 80 01 00 00 48 c7 c7 50 73 6a a0 e8 95 cf ee e0 48 8b 83 b0 1e 00 00 48 c7 c2 54 73 6a a0 be 64 00 00 00 48 8d 7d 8c \u003c48\u003e 8b 48 50 e8 15 22 07 e1 48 8b 43 28 48 8d 55 8c 48 c7 c7 5f 73\n RSP: 0018:ffffc90000a0ba68 EFLAGS: 00010246\n RAX: ffffffffffffffff RBX: ffff88817d6e3328 RCX: ffff88817d6e3328\n RDX: ffffffffa06a7354 RSI: 0000000000000064 RDI: ffffc90000a0ba6c\n RBP: ffffc90000a0bae0 R08: ffffffff824e4880 R09: ffffffffa069d620\n R10: ffffc90000a0ba00 R11: ffffffffffffffff R12: 0000000000000000\n R13: ffffc90000a0bb28 R14: ffff88817d6e3328 R15: ffff88817d6e3320\n FS:  00007f64dd92d740(0000) GS:ffff88847f640000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000000000004f CR3: 000000016fc79001 CR4: 0000000000770ee0\n PKRU: 55555554\n Call Trace:\n  \u003cTASK\u003e\n  ? iwl_mvm_mac_setup_register+0xbdc/0xda0 [iwlmvm]\n  iwl_mvm_start_post_nvm+0x71/0x100 [iwlmvm]\n  iwl_op_mode_mvm_start+0xab8/0xb30 [iwlmvm]\n  _iwl_op_mode_start+0x6f/0xd0 [iwlwifi]\n  iwl_opmode_register+0x6a/0xe0 [iwlwifi]\n  ? 0xffffffffa0231000\n  iwl_mvm_init+0x35/0x1000 [iwlmvm]\n  ? 0xffffffffa0231000\n  do_one_initcall+0x5a/0x1b0\n  ? kmem_cache_alloc+0x1e5/0x2f0\n  ? do_init_module+0x1e/0x220\n  do_init_module+0x48/0x220\n  load_module+0x2602/0x2bc0\n  ? __kernel_read+0x145/0x2e0\n  ? kernel_read_file+0x229/0x290\n  __do_sys_finit_module+0xc5/0x130\n  ? __do_sys_finit_module+0xc5/0x130\n  __x64_sys_finit_module+0x13/0x20\n  do_syscall_64+0x38/0x90\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\n RIP: 0033:0x7f64dda564dd\n Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1b 29 0f 00 f7 d8 64 89 01 48\n RSP: 002b:00007ffdba393f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000139\n RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f64dda564dd\n RDX: 0000000000000000 RSI: 00005575399e2ab2 RDI: 0000000000000001\n RBP: 000055753a91c5e0 R08: 0000000000000000 R09: 0000000000000002\n R10: 0000000000000001 R11: 0000000000000246 R12: 00005575399e2ab2\n R13: 000055753a91ceb0 R14: 0000000000000000 R15: 000055753a923018\n  \u003c/TASK\u003e\n Modules linked in: btintel(+) btmtk bluetooth vfat snd_hda_codec_hdmi fat snd_hda_codec_realtek snd_hda_codec_generic iwlmvm(+) snd_sof_pci_intel_tgl mac80211 snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence soundwire_bus snd_sof_intel_hda snd_sof_pci snd_sof snd_sof_xtensa_dsp snd_soc_hdac_hda snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core btrfs snd_compress snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec raid6_pq iwlwifi snd_hda_core snd_pcm snd_timer snd soundcore cfg80211 intel_ish_ipc(+) thunderbolt rfkill intel_ishtp ucsi_acpi wmi i2c_hid_acpi i2c_hid evdev\n CR2: 000000000000004f\n ---[ end trace 0000000000000000 ]---\n\nCheck the debugfs_dir pointer for an error before using it.\n\n[change to make both conditional]","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":"iwlwifi: mvm: check debugfs_dir ptr before use","id":"CVE-2022-48918","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2022"},"n_packages":0,"n_references":3,"next":{"headline":"cifs: fix double free race when mount fails in cifs_get_root()","id":"CVE-2022-48919"},"packages":[],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2022-48917"},"products":["Linux"],"published":"2024-08-22","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":"2026-05-11","vendors":["Linux"]},"summary":"A null pointer dereference in the iwlwifi kernel module causes a system crash when debugfs is disabled, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2022-48918/"}