scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.20 % · percentile 10 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Deferred
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show() If the allocation of tl_hba->sh fails in tcm_loop_driver_probe() and we attempt to dereference it in tcm_loop_tpg_address_show() we will get a segfault, see below for an example. So, check tl_hba->sh before dereferencing it. Unable to allocate struct scsi_host BUG: kernel NULL pointer dereference, address: 0000000000000194 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 8356 Comm: tokio-runtime-w Not tainted 6.6.104.2-4.azl3 #1 Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 09/28/2024 RIP: 0010:tcm_loop_tpg_address_show+0x2e/0x50 [tcm_loop] ... Call Trace: <TASK> configfs_read_iter+0x12d/0x1d0 [configfs] vfs_read+0x1b5/0x300 ksys_read+0x6f/0xf0 ...
References
- https://git.kernel.org/stable/c/63f511d3855f7f4b35dd63dbc58fc3d935a81268
- https://git.kernel.org/stable/c/3d8c517f6eb27e47b1a198e05f8023038329b40b
- https://git.kernel.org/stable/c/f449a1edd7a13bb025aaf9342ea6f8bf92684bbf
- https://git.kernel.org/stable/c/1c9ba455b5073253ceaadae4859546e38e8261fe
- https://git.kernel.org/stable/c/a6ef60898ddaf1414592ce3e5b0d94276d631663
- https://git.kernel.org/stable/c/72e8831079266749a7023618a0de2f289a9dced6
- https://git.kernel.org/stable/c/13aff3b8a7184281b134698704d6c06863a8361b
- https://git.kernel.org/stable/c/e6965188f84a7883e6a0d3448e86b0cf29b24dfc
European references
- ENISA EUVD · EUVD-2025-203667
- GCVE · GCVE-0-2025-68229
CERT-FR advisories
- CERTFR-2026-AVI-0602 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0545 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0453 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0421 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0397 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0371 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0331 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0316 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0057 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 2628b352c3d4905adf8129ea50900bd980b6ccef < 63f511d3855f7f4b35dd63dbc58fc3d935a81268 ; affected 2628b352c3d4905adf8129ea50900bd980b6ccef < 3d8c517f6eb27e47b1a198e05f8023038329b40b ; affected 2628b352c3d4905adf8129ea50900bd980b6ccef < f449a1edd7a13bb025aaf9342ea6f8bf92684bbf ; affected 2628b352c3d4905adf8129ea50900bd980b6ccef < 1c9ba455b5073253ceaadae4859546e38e8261fe ; affected 2628b352c3d4905adf8129ea50900bd980b6ccef < a6ef60898ddaf1414592ce3e5b0d94276d631663 ; affected 2628b352c3d4905adf8129ea50900bd980b6ccef < 72e8831079266749a7023618a0de2f289a9dced6 |
| Linux · Linux | affected 4.5 ; unaffected 0 < 4.5 ; unaffected 5.4.302 ≤ 5.4.* ; unaffected 5.10.247 ≤ 5.10.* ; unaffected 5.15.197 ≤ 5.15.* ; unaffected 6.1.159 ≤ 6.1.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |