{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-38646", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38646", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-08-22T16:00:51.397Z", "updatedAt": "2026-05-11T21:32:14.795Z", "importedAt": "2026-10-24T01:57:34.152Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "wifi: rtw89: avoid NULL dereference when RX problematic packet on unsupported 6 GHz band", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: avoid NULL dereference when RX problematic packet on unsupported 6 GHz band\n\nWith a quite rare chance, RX report might be problematic to make SW think\na packet is received on 6 GHz band even if the chip does not support 6 GHz\nband actually. Since SW won't initialize stuffs for unsupported bands, NULL\ndereference will happen then in the sequence, rtw89_vif_rx_stats_iter() ->\nrtw89_core_cancel_6ghz_probe_tx(). So, add a check to avoid it.\n\nThe following is a crash log for this case.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000032\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 NOPTI\n CPU: 1 PID: 1907 Comm: irq/131-rtw89_p Tainted: G U 6.6.56-05896-g89f5fb0eb30b #1 (HASH:1400 4)\n Hardware name: Google Telith/Telith, BIOS Google_Telith.15217.747.0 11/12/2024\n RIP: 0010:rtw89_vif_rx_stats_iter+0xd2/0x310 [rtw89_core]\n Code: 4c 89 7d c8 48 89 55 c0 49 8d 44 24 02 48 89 45 b8 45 31 ff eb 11\n 41 c6 45 3a 01 41 b7 01 4d 8b 6d 00 4d 39 f5 74 42 8b 43 10 <41> 33 45\n 32 0f b7 4b 14 66 41 33 4d 36 0f b7 c9 09 c1 74 d8 4d 85\n RSP: 0018:ffff9f3080138ca0 EFLAGS: 00010246\n RAX: 00000000b8bf5770 RBX: ffff91b5e8c639c0 RCX: 0000000000000011\n RDX: ffff91b582de1be8 RSI: 0000000000000000 RDI: ffff91b5e8c639e6\n RBP: ffff9f3080138d00 R08: 0000000000000000 R09: 0000000000000000\n R10: ffff91b59de70000 R11: ffffffffc069be50 R12: ffff91b5e8c639e4\n R13: 0000000000000000 R14: ffff91b5828020b8 R15: 0000000000000000\n FS: 0000000000000000(0000) GS:ffff91b8efa40000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000032 CR3: 00000002bf838000 CR4: 0000000000750ee0\n PKRU: 55555554\n Call Trace:\n \n ? __die_body+0x68/0xb0\n ? page_fault_oops+0x379/0x3e0\n ? exc_page_fault+0x4f/0xa0\n ? asm_exc_page_fault+0x22/0x30\n ? __pfx_rtw89_vif_rx_stats_iter+0x10/0x10 [rtw89_core (HASH:1400 5)]\n ? rtw89_vif_rx_stats_iter+0xd2/0x310 [rtw89_core (HASH:1400 5)]\n __iterate_interfaces+0x59/0x110 [mac80211 (HASH:1400 6)]\n ? __pfx_rtw89_vif_rx_stats_iter+0x10/0x10 [rtw89_core (HASH:1400 5)]\n ? __pfx_rtw89_vif_rx_stats_iter+0x10/0x10 [rtw89_core (HASH:1400 5)]\n ieee80211_iterate_active_interfaces_atomic+0x36/0x50 [mac80211 (HASH:1400 6)]\n rtw89_core_rx_to_mac80211+0xfd/0x1b0 [rtw89_core (HASH:1400 5)]\n rtw89_core_rx+0x43a/0x980 [rtw89_core (HASH:1400 5)]", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "c6aa9a9c47252ac7b07ed6d10459027e2f2a2de0", "status": "affected", "versionType": "git", "lessThan": "892b29eab44b1803d2cad8e50f1bc2144ef478cb" }, { "version": "c6aa9a9c47252ac7b07ed6d10459027e2f2a2de0", "status": "affected", "versionType": "git", "lessThan": "77a7a48f87d673a68664bebf044214821decbfda" }, { "version": "c6aa9a9c47252ac7b07ed6d10459027e2f2a2de0", "status": "affected", "versionType": "git", "lessThan": "f3527ac15a00916e68ecb495b74dbe6a6c62a06f" }, { "version": "c6aa9a9c47252ac7b07ed6d10459027e2f2a2de0", "status": "affected", "versionType": "git", "lessThan": "4b525630729082f026e7030eafccf89e3add7eae" }, { "version": "c6aa9a9c47252ac7b07ed6d10459027e2f2a2de0", "status": "affected", "versionType": "git", "lessThan": "7e04f01bb94fe61c73cc59f0495c3b6c16a83231" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.4", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.4" }, { "version": "6.6.102", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.42", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.15.10", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.15.*" }, { "version": "6.16.1", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.16.*" }, { "version": "6.17", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }