kernel/linux.git/drivers/accel/ivpu, branch v7.0.13

accel/ivpu: Fix signed integer truncation in IPC receive

2026-06-19T11:47:57+00:00

commit d9faef564438d1e4579c692c046603e7ada7bdf4 upstream. Fix potential buffer overflow where firmware-supplied data_size is cast to signed int before being used in min_t(). Large unsigned values (>= 0x80000000) become negative, causing unsigned wraparound and oversized memcpy operations that can overflow the stack buffer. Change min_t(int, ...) to min() as both values are unsigned and can be handled by min() without explicit cast. Fixes: 3b434a3445ff ("accel/ivpu: Use threaded IRQ to handle JOB done messages") Cc: stable@vger.kernel.org # v6.12+ Signed-off-by: Andrzej Kacprowski Reviewed-by: Karol Wachowski Signed-off-by: Karol Wachowski Link: https://patch.msgid.link/20260601161643.229342-1-andrzej.kacprowski@linux.intel.com Signed-off-by: Greg Kroah-Hartman

accel/ivpu: Add buffer overflow check in MS get_info_ioctl

2026-06-19T11:47:57+00:00

commit fb176425837693f50c5c9fc8db6fbb04af22bd0a upstream. Add validation that the info size returned from the metric stream info query is not exceeded when checked against the allocated buffer size. If the firmware returns a size larger than the buffer, reject the operation with -EOVERFLOW instead of proceeding with an incorrect buffer copy. Fixes: cdfad4db7756 ("accel/ivpu: Add NPU profiling support") Cc: stable@vger.kernel.org # v6.18+ Signed-off-by: Andrzej Kacprowski Reviewed-by: Karol Wachowski Signed-off-by: Karol Wachowski Link: https://patch.msgid.link/20260529120841.135852-1-andrzej.kacprowski@linux.intel.com Signed-off-by: Greg Kroah-Hartman

accel/ivpu: Add bounds checks for firmware log indices

2026-06-19T11:47:56+00:00

commit dd1311bcf0e62f0c515115f46a3813370f4a4bb1 upstream. Add validation that read and write indices in the firmware log buffer are within valid bounds (< data_size) before using them. If out-of-bounds indices are encountered (from firmware), clamp them to safe values instead of proceeding with invalid offsets. This prevents potential out-of-bounds buffer access when firmware supplies invalid log indices. Fixes: 1fc1251149a7 ("accel/ivpu: Refactor functions in ivpu_fw_log.c") Cc: stable@vger.kernel.org # v6.18+ Signed-off-by: Andrzej Kacprowski Reviewed-by: Karol Wachowski Signed-off-by: Karol Wachowski Link: https://patch.msgid.link/20260529115842.135378-1-andrzej.kacprowski@linux.intel.com Signed-off-by: Greg Kroah-Hartman

accel/ivpu: Add bounds check for firmware runtime memory

2026-06-19T11:47:56+00:00

commit 1d0b597facdd3c0239c88e8797c1014e1ea0ef15 upstream. Validate that the firmware runtime memory specified in the image header is properly aligned and sized to hold the firmware image. This prevents errors during memory allocation and image transfer. Fixes: 2007e210b6a1 ("accel/ivpu: Split FW runtime and global memory buffers") Cc: stable@vger.kernel.org # v7.0+ Signed-off-by: Andrzej Kacprowski Reviewed-by: Karol Wachowski Signed-off-by: Karol Wachowski Link: https://patch.msgid.link/20260529120853.135876-1-andrzej.kacprowski@linux.intel.com Signed-off-by: Greg Kroah-Hartman

accel/ivpu: prevent uninitialized data bug in debugfs

2026-06-09T10:32:23+00:00

[ Upstream commit 44e151be23deb788d9f6124de93823faf6e04e99 ] The simple_write_to_buffer() will only initialize data starting from the *pos offset so if it's non-zero then the first part of the buffer uninitialized. Really, if *pos is non-zero then this code won't work so just check for that at the start of the function. Fixes: 320323d2e545 ("accel/ivpu: Add debugfs interface for setting HWS priority bands") Signed-off-by: Dan Carpenter Reviewed-by: Karol Wachowski Signed-off-by: Karol Wachowski Link: https://patch.msgid.link/ahP24m6Mii9EDL7Q@stanley.mountain Signed-off-by: Sasha Levin

accel/ivpu: Disallow re-exporting imported GEM objects

2026-05-14T13:31:08+00:00

commit 7dd57d7a6350770dfc283287125c409e995200e0 upstream. Prevent re-exporting of imported GEM buffers by adding a custom prime_handle_to_fd callback that checks if the object is imported and returns -EOPNOTSUPP if so. Re-exporting imported GEM buffers causes loss of buffer flags settings, leading to incorrect device access and data corruption. Reported-by: Yametsu Fixes: 57557964b582 ("accel/ivpu: Add support for userptr buffer objects") Reviewed-by: Andrzej Kacprowski Signed-off-by: Karol Wachowski Cc: # v6.19+ Signed-off-by: Greg Kroah-Hartman

accel/ivpu: Add disable clock relinquish workaround for NVL-A0

2026-03-24T08:29:28+00:00

Turn on disable clock relinquish workaround for Nova Lake A0. Without this workaround NPU may not power off correctly after inference, leading to unexpected system behavior. Fixes: 550f4dd2cedd ("accel/ivpu: Add support for Nova Lake's NPU") Cc: # v6.19+ Reviewed-by: Lizhi.hou Signed-off-by: Karol Wachowski Link: https://patch.msgid.link/20260323095029.64613-1-karol.wachowski@linux.intel.com

accel/ivpu: Remove boot params address setting via MMIO register

2026-03-10T12:34:31+00:00

The NPU 60XX uses the default boot params location specified in the firmware image header, consistent with earlier generations. Remove the unnecessary MMIO register write, freeing the AON register for future use. Fixes: 44e4c88951fa ("accel/ivpu: Implement warm boot flow for NPU6 and unify boot handling") Signed-off-by: Andrzej Kacprowski Reviewed-by: Karol Wachowski Signed-off-by: Karol Wachowski Link: https://patch.msgid.link/20260305142226.194995-1-andrzej.kacprowski@linux.intel.com (cherry picked from commit 81e62e7bf8b9309bf0febdf00940818f98bc23d8) Signed-off-by: Thomas Zimmermann

Convert 'alloc_flex' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\