CVE-2026-23068
In the Linux kernel, the following vulnerability has been resolved: spi: spi-sprd-adi: Fix double free in probe error path The driver currently uses spi_alloc_host() to allocate the controller but registers it using devm_spi_register_controller().
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: spi: spi-sprd-adi: Fix double free in probe error path The driver currently uses spi_alloc_host() to allocate the controller but registers it using devm_spi_register_controller(). If devm_register_restart_handler() fails, the code jumps to the put_ctlr label and calls spi_controller_put(). However, since the controller was registered via a devm function, the device core will automatically call spi_controller_put() again when the probe fails. This results in a double-free of the spi_controller structure. Fix this by switching to devm_spi_alloc_host() and removing the manual spi_controller_put() call.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/346775f2b4cf839177e8e86b94aa180a06dc15b0Patch
- https://git.kernel.org/stable/c/383d4f5cffcc8df930d95b06518a9d25a6d74aacPatch
- https://git.kernel.org/stable/c/417cdfd9b9f986e95bfcb1d68eb443e6e0a15f8cPatch
- https://git.kernel.org/stable/c/bddd3d10d039729b81cfb0804520c8832a701a0ePatch
- https://git.kernel.org/stable/c/f6d6b3f172df118db582fe5ec43ae223a55d99cfPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.