{ "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-2024-26815", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-26815", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-04-10T11:07:03.182Z", "updatedAt": "2026-08-05T11:27:36.126Z", "importedAt": "2026-10-24T01:57:07.518Z", "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": "net/sched: taprio: proper TCA_TAPRIO_TC_ENTRY_INDEX check", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: taprio: proper TCA_TAPRIO_TC_ENTRY_INDEX check\n\ntaprio_parse_tc_entry() is not correctly checking\nTCA_TAPRIO_TC_ENTRY_INDEX attribute:\n\n\tint tc; // Signed value\n\n\ttc = nla_get_u32(tb[TCA_TAPRIO_TC_ENTRY_INDEX]);\n\tif (tc >= TC_QOPT_MAX_QUEUE) {\n\t\tNL_SET_ERR_MSG_MOD(extack, \"TC entry index out of range\");\n\t\treturn -ERANGE;\n\t}\n\nsyzbot reported that it could fed arbitary negative values:\n\nUBSAN: shift-out-of-bounds in net/sched/sch_taprio.c:1722:18\nshift exponent -2147418108 is negative\nCPU: 0 PID: 5066 Comm: syz-executor367 Not tainted 6.8.0-rc7-syzkaller-00136-gc8a5c731fd12 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\nCall Trace:\n \n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106\n ubsan_epilogue lib/ubsan.c:217 [inline]\n __ubsan_handle_shift_out_of_bounds+0x3c7/0x420 lib/ubsan.c:386\n taprio_parse_tc_entry net/sched/sch_taprio.c:1722 [inline]\n taprio_parse_tc_entries net/sched/sch_taprio.c:1768 [inline]\n taprio_change+0xb87/0x57d0 net/sched/sch_taprio.c:1877\n taprio_init+0x9da/0xc80 net/sched/sch_taprio.c:2134\n qdisc_create+0x9d4/0x1190 net/sched/sch_api.c:1355\n tc_modify_qdisc+0xa26/0x1e40 net/sched/sch_api.c:1776\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6617\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:745\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\n ___sys_sendmsg net/socket.c:2638 [inline]\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\n do_syscall_64+0xf9/0x240\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\nRIP: 0033:0x7f1b2dea3759\nCode: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffd4de452f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007f1b2def0390 RCX: 00007f1b2dea3759\nRDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004\nRBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000\nR10: 0000555500000000 R11: 0000000000000246 R12: 00007ffd4de45340\nR13: 00007ffd4de45310 R14: 0000000000000001 R15: 00007ffd4de45340", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "a54fc09e4cba3004443aa05979f8c678196c8226", "status": "affected", "versionType": "git", "lessThan": "bd2474a45df7c11412c2587de3d4e43760531418" }, { "version": "a54fc09e4cba3004443aa05979f8c678196c8226", "status": "affected", "versionType": "git", "lessThan": "6915b1b28fe57e92c78e664366dc61c4f15ff03b" }, { "version": "a54fc09e4cba3004443aa05979f8c678196c8226", "status": "affected", "versionType": "git", "lessThan": "860e838fb089d652a446ced52cbdf051285b68e7" }, { "version": "a54fc09e4cba3004443aa05979f8c678196c8226", "status": "affected", "versionType": "git", "lessThan": "9b720bb1a69a9f12a4a5c86b6f89386fe05ed0f2" }, { "version": "a54fc09e4cba3004443aa05979f8c678196c8226", "status": "affected", "versionType": "git", "lessThan": "343041b59b7810f9cdca371f445dd43b35c740b1" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.1", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.1" }, { "version": "6.1.83", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.23", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.7.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.7.*" }, { "version": "6.8.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.8.*" }, { "version": "6.9", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }