{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-31510 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-31510 is a medium-severity vulnerability in Linux kernel, published on 22 Apr 2026. 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-2026-31510 and fix it if it is affected.\n\nWhat it is: CVE-2026-31510 is a medium-severity vulnerability in Linux kernel, published on 22 Apr 2026. 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-2026-31510 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-2026-31510/ (Markdown: https://insights.sbomify.com/CVE-2026-31510/index.md)","id":"CVE-2026-31510","markdown":"https://insights.sbomify.com/CVE-2026-31510/index.md","name":"CVE-2026-31510","record":{"aliases":["AZL-83267","BELL-CVE-2026-31510","DEBIAN-CVE-2026-31510","GHSA-rv4p-485x-2f9c","ROOT-OS-DEBIAN-11-CVE-2026-31510","ROOT-OS-DEBIAN-12-CVE-2026-31510","ROOT-OS-DEBIAN-13-CVE-2026-31510","ROOT-OS-UBUNTU-2204-CVE-2026-31510","ROOT-OS-UBUNTU-2404-CVE-2026-31510","UBUNTU-CVE-2026-31510"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel Bluetooth","requires_auth":"low_privilege","summary":"A null pointer dereference in the Linux kernel Bluetooth L2CAP module allows attackers to cause a system crash via crafted Bluetooth packets.","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\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 \u003c0f\u003e 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  \u003cTASK\u003e\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  \u003c/TASK\u003e\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 \u003c0f\u003e 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","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":"Bluetooth: L2CAP: Fix null-ptr-deref on l2cap_sock_ready_cb","id":"CVE-2026-31510","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Bluetooth: MGMT: Fix dangling pointer on mgmt_add_adv_patterns_monitor_complete","id":"CVE-2026-31511"},"packages":[],"prev":{"headline":"nfc: nci: fix circular locking dependency in nci_close_device","id":"CVE-2026-31509"},"products":["Linux"],"published":"2026-04-22","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel Bluetooth L2CAP module allows attackers to cause a system crash via crafted Bluetooth packets.","url":"https://insights.sbomify.com/CVE-2026-31510/"}