{"id":"CVE-2025-38280","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-38280","generatedAt":"2026-10-28T13:14:17.636Z","title":"In the Linux kernel, the following vulnerability has been resolved: bpf: Avoid __bpf_prog_ret0_warn when jit fails syzkaller reported an issue: WARNING: CPU: 3 PID: 217 at kernel/bpf/core.c:2357 __bpf_prog_ret0_warn+0xa/0x20 kernel/bpf/core.c:2357…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Avoid __bpf_prog_ret0_warn when jit fails\n\nsyzkaller reported an issue:\n\nWARNING: CPU: 3 PID: 217 at kernel/bpf/core.c:2357 __bpf_prog_ret0_warn+0xa/0x20 kernel/bpf/core.c:2357\nModules linked in:\nCPU: 3 UID: 0 PID: 217 Comm: kworker/u32:6 Not tainted 6.15.0-rc4-syzkaller-00040-g8bac8898fe39\nRIP: 0010:__bpf_prog_ret0_warn+0xa/0x20 kernel/bpf/core.c:2357\nCall Trace:\n <TASK>\n bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline]\n __bpf_prog_run include/linux/filter.h:718 [inline]\n bpf_prog_run include/linux/filter.h:725 [inline]\n cls_bpf_classify+0x74a/0x1110 net/sched/cls_bpf.c:105\n ...\n\nWhen creating bpf program, 'fp->jit_requested' depends on bpf_jit_enable.\nThis issue is triggered because of CONFIG_BPF_JIT_ALWAYS_ON is not set\nand bpf_jit_enable is set to 1, causing the arch to attempt JIT the prog,\nbut jit failed due to FAULT_INJECTION. As a result, incorrectly\ntreats the program as valid, when the program runs it calls\n`__bpf_prog_ret0_warn` and triggers the WARN_ON_ONCE(1).","published":"2025-07-10T08:15:26.000Z","lastModified":"2026-06-17T09:16:32.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":[],"affected":["linux/linux kernel","debian/debian linux"],"epss":{"score":0.00214,"percentile":0.1169,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/0b9bb52796b239de6792d0d68cdc6eb505ebff96","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2bc6dffb4b72d53d6a6ada510269bf548c3f7ae0","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6f639c25bfad17d9fd7379ab91ff9678ea9aac85","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/86bc9c742426a16b52a10ef61f5b721aecca2344","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e7fb4ebee6e900899d2b2e5852c3e2eafcbcad66","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ef92b96530d1731d9ac167bc7c193c683cd78fff","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-38280","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}