u-boot.git/boot/bootmeth_rauc.c, branch next

bootstd: rauc: Fix null pointer access while checking root part

2026-02-16T17:52:01+00:00

Fix a segmentation fault caused by a null pointer access during root
partition checking. The function part_get_info() was falsely given null
for the disk_partition struct, which later resulted in accessing a null
pointer and thus undefined behavior.

Fixes: 5d7c080ae5dc ("bootstd: rauc: Don't check root part filesystem")
Signed-off-by: Martin Schwan

bootstd: rauc: Free memory during error handling

2026-01-16T15:53:57+00:00

While reading bootflow, memory was not released if an
error occurred.

Signed-off-by: Francois Berder 
Acked-by: Martin Schwan 
Tested-by: Martin Schwan

bootstd: rauc: Only require partitions for one slot

2025-11-27T15:27:03+00:00

Partitions can be become unusable due to power cuts or failed updates.
Use the bootmeth RAUC if partitions for at least one slot exist. The
bootmeth can then select the working slot.

Signed-off-by: Leonard Anderweit 
Tested-by: Martin Schwan

bootstd: rauc: Don't check root part filesystem

2025-11-27T15:27:03+00:00

Only check if the root partition exists when scanning for the slots
partitions and not if the filesystem can be accessed. It is not needed
to access the filesystem of the root partition as it might not be
supported by u-boot or be encrypted.

Signed-off-by: Leonard Anderweit 
Tested-by: Martin Schwan

bootstd: rauc: no valid slot fallback: fix info msg to reflect real flow

2025-10-13T20:54:32+00:00

If there is no more active slot found in find_active_slot(), like when
all slots in BOOT_ORDER have a count of 0, the counters are reset to their
default value CONFIG_BOOTMETH_RAUC_DEFAULT_TRIES. The BOOT_ORDER is _not_
changed, which is logically correct (especially for the case when there is
only one (active) slot set, e.g. BOOT_ORDER only contains 'B', probably due
to RAUC option prevent-late-fallback being set). Resetting the counters of
inactive slots also does not harm here, and is fine as a generic solution.

But the log_info statement in this scenario
  INFO: Resetting boot order and all slot tries
is incorrect. Change this to
  INFO: Resetting all slot tries to 3
with the 3 being inserted by CONFIG_BOOTMETH_RAUC_DEFAULT_TRIES.

Signed-off-by: Andreas Pretzsch 
Reviewed-by: Martin Schwan

Merge patch series "bootstd: rauc: Fix segfault when scanning device with unsupported layout"

2025-08-21T21:05:15+00:00

Martin Schwan  says:

This series fixes a segfault, that would occur at the end of scanning a
device, which does not contain the required partition layout scheme for
a RAUC system.

With this series, a "bootflow scan" should now correctly scan the
specified devices with boot method "rauc" without crashing on invalid
partition schemes.

Link: https://lore.kernel.org/r/20250813-wip-bootmeth-rauc-priv-free-v1-0-1ef928169469@phytec.de

bootstd: rauc: Free private data when booting

2025-08-21T21:05:04+00:00

The private data struct can be freed when loading the boot script, as we
don't need the slot information anymore at this point.

Signed-off-by: Martin Schwan 
Tested-by: Wadim Egorov

bootstd: rauc: Move freeing private struct to its own function

2025-08-21T21:05:04+00:00

Move freeing a distro_rauc_priv struct to a new, separate function for
better reuse.

Signed-off-by: Martin Schwan 
Tested-by: Wadim Egorov

bootstd: rauc: Don't null bootflow->bootmeth_priv

2025-08-21T21:05:04+00:00

Don't null bootflow->bootmeth_priv, as the private struct is freed later
on by the bootflow.

Signed-off-by: Martin Schwan 
Tested-by: Wadim Egorov

bootstd: rauc: Fix segfault when cleaning up slots

2025-08-21T21:05:04+00:00

Fix a segfault when cleaning up the slots from the private struct. This
fault was generated by accessing a member of a null pointer.

Signed-off-by: Martin Schwan 
Tested-by: Wadim Egorov