{ "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-2026-31510", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31510", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-04-22T13:54:28.712Z", "updatedAt": "2026-05-11T22:10:11.263Z", "importedAt": "2026-10-24T01:58:02.025Z", "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": "Bluetooth: L2CAP: Fix null-ptr-deref on l2cap_sock_ready_cb", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix null-ptr-deref on l2cap_sock_ready_cb\n\nBefore using sk pointer, check if it is null.\n\nFix the following:\n\n KASAN: null-ptr-deref in range [0x0000000000000260-0x0000000000000267]\n CPU: 0 UID: 0 PID: 5985 Comm: kworker/0:5 Not tainted 7.0.0-rc4-00029-ga989fde763f4 #1 PREEMPT(full)\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-9.fc43 06/10/2025\n Workqueue: events l2cap_info_timeout\n RIP: 0010:kasan_byte_accessible+0x12/0x30\n Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cce\n veth0_macvtap: entered promiscuous mode\n RSP: 0018:ffffc90006e0f808 EFLAGS: 00010202\n RAX: dffffc0000000000 RBX: ffffffff89746018 RCX: 0000000080000001\n RDX: 0000000000000000 RSI: ffffffff89746018 RDI: 000000000000004c\n RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\n R10: dffffc0000000000 R11: ffffffff8aae3e70 R12: 0000000000000000\n R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001\n FS: 0000000000000000(0000) GS:ffff8880983c2000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00005582615a5008 CR3: 000000007007e000 CR4: 0000000000752ef0\n PKRU: 55555554\n Call Trace:\n \n __kasan_check_byte+0x12/0x40\n lock_acquire+0x79/0x2e0\n lock_sock_nested+0x48/0x100\n ? l2cap_sock_ready_cb+0x46/0x160\n l2cap_sock_ready_cb+0x46/0x160\n l2cap_conn_start+0x779/0xff0\n ? __pfx_l2cap_conn_start+0x10/0x10\n ? l2cap_info_timeout+0x60/0xa0\n ? __pfx___mutex_lock+0x10/0x10\n l2cap_info_timeout+0x68/0xa0\n ? process_scheduled_works+0xa8d/0x18c0\n process_scheduled_works+0xb6e/0x18c0\n ? __pfx_process_scheduled_works+0x10/0x10\n ? assign_work+0x3d5/0x5e0\n worker_thread+0xa53/0xfc0\n kthread+0x388/0x470\n ? __pfx_worker_thread+0x10/0x10\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x51e/0xb90\n ? __pfx_ret_from_fork+0x10/0x10\n veth1_macvtap: entered promiscuous mode\n ? __switch_to+0xc7d/0x1450\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \n Modules linked in:\n ---[ end trace 0000000000000000 ]---\n batman_adv: batadv0: Interface activated: batadv_slave_0\n batman_adv: batadv0: Interface activated: batadv_slave_1\n netdevsim netdevsim7 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0\n netdevsim netdevsim7 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0\n netdevsim netdevsim7 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0\n netdevsim netdevsim7 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0\n RIP: 0010:kasan_byte_accessible+0x12/0x30\n Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cce\n ieee80211 phy39: Selected rate control algorithm 'minstrel_ht'\n RSP: 0018:ffffc90006e0f808 EFLAGS: 00010202\n RAX: dffffc0000000000 RBX: ffffffff89746018 RCX: 0000000080000001\n RDX: 0000000000000000 RSI: ffffffff89746018 RDI: 000000000000004c\n RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\n R10: dffffc0000000000 R11: ffffffff8aae3e70 R12: 0000000000000000\n R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001\n FS: 0000000000000000(0000) GS:ffff8880983c2000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f7e16139e9c CR3: 000000000e74e000 CR4: 0000000000752ef0\n PKRU: 55555554\n Kernel panic - not syncing: Fatal exception", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "54a59aa2b562872781d6a8fc89f300d360941691", "status": "affected", "versionType": "git", "lessThan": "d34776c7fa1f2c510f1cdd14823aba701babb4ad" }, { "version": "54a59aa2b562872781d6a8fc89f300d360941691", "status": "affected", "versionType": "git", "lessThan": "03d4eafb0f3788239df63575951f6b4c97bbfda4" }, { "version": "54a59aa2b562872781d6a8fc89f300d360941691", "status": "affected", "versionType": "git", "lessThan": "3c821bc0fbeaa27910a20d0b43c6008d099792af" }, { "version": "54a59aa2b562872781d6a8fc89f300d360941691", "status": "affected", "versionType": "git", "lessThan": "a04a760c06bb591989db659439efdf106f0bae76" }, { "version": "54a59aa2b562872781d6a8fc89f300d360941691", "status": "affected", "versionType": "git", "lessThan": "0780f9333852971ca77d110019e3a66ce5a7b100" }, { "version": "54a59aa2b562872781d6a8fc89f300d360941691", "status": "affected", "versionType": "git", "lessThan": "1dc6db047919ecd59493cd51248b37381bbabcbb" }, { "version": "54a59aa2b562872781d6a8fc89f300d360941691", "status": "affected", "versionType": "git", "lessThan": "898b89c90ff9496e64b9331040778cc4e1b28c9d" }, { "version": "54a59aa2b562872781d6a8fc89f300d360941691", "status": "affected", "versionType": "git", "lessThan": "b6552e0503973daf6f23bd6ed9273ef131ee364f" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.6", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.6" }, { "version": "5.10.253", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.203", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.168", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.131", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.80", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.21", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "6.19.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.19.*" }, { "version": "7.0", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }