{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-99153 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-99153 is a vulnerability in Linux, published on 28 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-99153 and fix it if it is affected.\n\nWhat it is: CVE-2026-99153 is a vulnerability in Linux, published on 28 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-99153 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2026-99153/ (Markdown: https://insights.sbomify.com/CVE-2026-99153/index.md)","id":"CVE-2026-99153","markdown":"https://insights.sbomify.com/CVE-2026-99153/index.md","name":"CVE-2026-99153","record":{"aliases":["AZL-111287","BELL-CVE-2026-99153","DEBIAN-CVE-2026-99153","GHSA-92v8-wfx9-6cf9","UBUNTU-CVE-2026-99153"],"analysis":null,"analysis_generated_by":null,"assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: libiscsi: Validate the ITT reflected in a Reject PDU\n\nA Reject PDU carries a copy of the header it rejects, and\niscsi_handle_reject() takes the ITT out of that copy to find the task to\nclean up:\n\n      memcpy(\u0026rejected_pdu, data, sizeof(struct iscsi_hdr));\n      ...\n      task = iscsi_itt_to_task(conn, rejected_pdu.itt);\n\nThat value is whatever the target put there. iscsi_itt_to_task() bounds\nthe index against cmds_max and checks nothing else, so any task in the\npool can be named, and iscsi_nop_out_rsp() then completes it.\n\nAn index that has never been used gives a NULL task-\u003econn: the pool is\nzeroed at session setup and conn is assigned only when a task is\nallocated. If the task was used and returned, iscsi_complete_task() hits\nits WARN_ON_ONCE(task-\u003estate == ISCSI_TASK_FREE) and the refcount\nunderflows. An in-flight SCSI command is completed as successful - a 1\nMiB read returned 1048576 with none of its buffer written and no\nwarning.\n\nValidate the reflected ITT the way iscsi_itt_to_ctask() validates a\ncommand ITT, and require the task to be in flight and not a SCSI\ncommand.\n\n[    6.248477] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN NOPTI\n[    6.249357] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067]\n[    6.249951] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 7.2.0-rc5-ISCSI1-gf5098b6bae76 #1 PREEMPT(lazy)\n[    6.250718] Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[    6.251616] RIP: 0010:iscsi_nop_out_rsp.constprop.0+0x46/0x160\n[    6.252043] Code: c1 ea 03 48 83 ec 08 80 3c 02 00 0f 85 f5 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 58 48 8d 7d 60 48 89 fa 48 c1 ea 03 \u003c80\u003e 3c 02 00 0f 85 c0 00 00 00 48 8b 45 60 48 39 c3 74 50 48 b8 00\n[    6.252813] RSP: 0018:ffff88806c907b80 EFLAGS: 00010206\n[    6.253042] RAX: dffffc0000000000 RBX: ffff88800607e000 RCX: ffffffff8d571a25\n[    6.253345] RDX: 000000000000000c RSI: ffff88806c907c38 RDI: 0000000000000060\n[    6.253642] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff235a504\n[    6.253947] R10: 0000000000000003 R11: 7463656e6e6f6320 R12: 0000000000000000\n[    6.254251] R13: 0000000000000000 R14: ffff88806c907c38 R15: 0000000000000000\n[    6.254549] FS:  0000000000000000(0000) GS:ffff8880d95bc000(0000) knlGS:0000000000000000\n[    6.254887] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[    6.255140] CR2: 00007fc393e8ffc0 CR3: 0000000005252006 CR4: 0000000000770ef0\n[    6.255439] PKRU: 55555554\n[    6.255564] Call Trace:\n[    6.255674]  \u003cIRQ\u003e\n[    6.255768]  __iscsi_complete_pdu+0x18bf/0x22a0\n[    6.256733]  iscsi_complete_pdu+0x54/0xa0\n[    6.256905]  iscsi_tcp_data_recv_done+0xf4/0x250\n[    6.257103]  iscsi_tcp_recv_skb+0x31e/0xec0\n[    6.257680]  iscsi_sw_tcp_recv+0x12f/0x390\n[    6.258061]  __tcp_read_sock+0x1ab/0x810\n[    6.258853]  iscsi_sw_tcp_data_ready+0x18b/0x510\n[    6.259808]  tcp_data_queue+0x1f13/0x4cd0\n[    6.260567]  tcp_rcv_established+0x8a5/0x3a00\n[    6.261931]  tcp_v4_do_rcv+0x449/0x960\n[    6.262269]  tcp_v4_rcv+0x2245/0x3bc0","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":"scsi: libiscsi: Validate the ITT reflected in a Reject PDU","id":"CVE-2026-99153","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"scsi: libiscsi: Reject a negative task index from parse_pdu_itt","id":"CVE-2026-99154"},"packages":[],"prev":{"headline":"scsi: libiscsi: Validate the task named by a management response","id":"CVE-2026-99152"},"products":["Linux"],"published":"2026-10-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-28","vendors":["Linux"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-99153/"}