CVE-2026-23202
Published: February 19, 2026Last modified: February 20, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer The curr_xfer field is read by the IRQ handler without holding the lock to check if a transfer is in progress. When clearing curr_xfer in the combined sequence transfer loop, protect it with the spinlock to prevent a race with the interrupt handler. Protect the curr_xfer clearing at the exit path of tegra_qspi_combined_seq_xfer() with the spinlock to prevent a race with the interrupt handler that reads this field. Without this protection, the IRQ handler could read a partially updated curr_xfer value, leading to NULL pointer dereference or use-after-free.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.163-r0) |
| 25 LTS | linux-lts | Fixed (6.12.73-r0) | |
| Stream | linux-lts | Fixed (6.12.71-r0) |
References
- https://git.kernel.org/stable/c/3bc293d5b56502068481478842f57b3d96e432c7
- https://git.kernel.org/stable/c/6fd446178a610a48e80e5c5b487b0707cd01daac
- https://git.kernel.org/stable/c/712cde8d916889e282727cdf304a43683adf899e
- https://git.kernel.org/stable/c/762e2ce71c8f0238e9eaf05d14da803d9a24422f
- https://git.kernel.org/stable/c/9fa4262a80f751d14a6a39d2c03f57db68da2618
- https://git.kernel.org/stable/c/bf4528ab28e2bf112c3a2cdef44fd13f007781cd