{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-39500 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-39500 is a high-severity vulnerability in Linux kernel, published on 12 Jul 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-2024-39500 and fix it if it is affected.\n\nWhat it is: CVE-2024-39500 is a high-severity vulnerability in Linux kernel, published on 12 Jul 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-2024-39500 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-2024-39500/ (Markdown: https://insights.sbomify.com/CVE-2024-39500/index.md)","id":"CVE-2024-39500","markdown":"https://insights.sbomify.com/CVE-2024-39500/index.md","name":"CVE-2024-39500","record":{"aliases":["BELL-CVE-2024-39500","DEBIAN-CVE-2024-39500","GHSA-hrxv-7xrv-h5rv","ROOT-OS-DEBIAN-11-CVE-2024-39500","UBUNTU-CVE-2024-39500"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A race condition in the Linux kernel's sock_map can trigger a kernel warning and potential denial of service when closing sockets concurrently.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"},{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsock_map: avoid race between sock_map_close and sk_psock_put\n\nsk_psock_get will return NULL if the refcount of psock has gone to 0, which\nwill happen when the last call of sk_psock_put is done. However,\nsk_psock_drop may not have finished yet, so the close callback will still\npoint to sock_map_close despite psock being NULL.\n\nThis can be reproduced with a thread deleting an element from the sock map,\nwhile the second one creates a socket, adds it to the map and closes it.\n\nThat will trigger the WARN_ON_ONCE:\n\n------------[ cut here ]------------\nWARNING: CPU: 1 PID: 7220 at net/core/sock_map.c:1701 sock_map_close+0x2a2/0x2d0 net/core/sock_map.c:1701\nModules linked in:\nCPU: 1 PID: 7220 Comm: syz-executor380 Not tainted 6.9.0-syzkaller-07726-g3c999d1ae3c7 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024\nRIP: 0010:sock_map_close+0x2a2/0x2d0 net/core/sock_map.c:1701\nCode: df e8 92 29 88 f8 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 79 29 88 f8 4c 8b 23 eb 89 e8 4f 15 23 f8 90 \u003c0f\u003e 0b 90 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 13 26 3d 02\nRSP: 0018:ffffc9000441fda8 EFLAGS: 00010293\nRAX: ffffffff89731ae1 RBX: ffffffff94b87540 RCX: ffff888029470000\nRDX: 0000000000000000 RSI: ffffffff8bcab5c0 RDI: ffffffff8c1faba0\nRBP: 0000000000000000 R08: ffffffff92f9b61f R09: 1ffffffff25f36c3\nR10: dffffc0000000000 R11: fffffbfff25f36c4 R12: ffffffff89731840\nR13: ffff88804b587000 R14: ffff88804b587000 R15: ffffffff89731870\nFS:  000055555e080380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000000 CR3: 00000000207d4000 CR4: 0000000000350ef0\nCall Trace:\n \u003cTASK\u003e\n unix_release+0x87/0xc0 net/unix/af_unix.c:1048\n __sock_release net/socket.c:659 [inline]\n sock_close+0xbe/0x240 net/socket.c:1421\n __fput+0x42b/0x8a0 fs/file_table.c:422\n __do_sys_close fs/open.c:1556 [inline]\n __se_sys_close fs/open.c:1541 [inline]\n __x64_sys_close+0x7f/0x110 fs/open.c:1541\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7fb37d618070\nCode: 00 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d4 e8 10 2c 00 00 80 3d 31 f0 07 00 00 74 17 b8 03 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c\nRSP: 002b:00007ffcd4a525d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003\nRAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fb37d618070\nRDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000004\nRBP: 0000000000000000 R08: 0000000100000000 R09: 0000000100000000\nR10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\n \u003c/TASK\u003e\n\nUse sk_psock, which will only check that the pointer is not been set to\nNULL yet, which should only happen after the callbacks are restored. If,\nthen, a reference can still be gotten, we may call sk_psock_stop and cancel\npsock-\u003ework.\n\nAs suggested by Paolo Abeni, reorder the condition so the control flow is\nless convoluted.\n\nAfter that change, the reproducer does not trigger the WARN_ON_ONCE\nanymore.","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":"sock_map: avoid race between sock_map_close and sk_psock_put","id":"CVE-2024-39500","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"race_condition","year":"2024"},"n_packages":0,"n_references":5,"next":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2024-39501"},"packages":[],"prev":{"headline":"vmci: prevent speculation leaks by sanitizing event in event_deliver()","id":"CVE-2024-39499"},"products":["Linux"],"published":"2024-07-12","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 race condition in the Linux kernel's sock_map can trigger a kernel warning and potential denial of service when closing sockets concurrently.","url":"https://insights.sbomify.com/CVE-2024-39500/"}