[PW_SID:1104852] [v1] Bluetooth: MGMT: Fix backward compatibility with userspace

[BluezTestBot]

From: Luiz Augusto von Dentz luiz.von.dentz@intel.com

bluetoothd has a bug with makes it send extra bytes as part of
MGMT_OP_ADD_EXT_ADV_DATA which are now being checked to be the
exact the expected length, relax this so only when the expected
length is greater than the data length to cause an error since
that would result in accessing invalid memory, otherwise just
ignore the extra bytes.

Link: https://lore.kernel.org/linux-bluetooth/20260602204749.210857-1-luiz.dentz@gmail.com/T/#u
Fixes: d3f7d17960ed ("Bluetooth: MGMT: validate Add Extended Advertising Data length")
Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com

net/bluetooth/mgmt.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

[github-actions]

CheckPatch
Desc: Run checkpatch.pl script
Duration: 0.74 seconds
Result: PASS

[github-actions]

VerifyFixes
Desc: Verify Fixes tag format and validity
Duration: 0.14 seconds
Result: PASS

[github-actions]

VerifySignedoff
Desc: Verify Signed-off-by chain
Duration: 0.14 seconds
Result: PASS

[github-actions]

GitLint
Desc: Run gitlint
Duration: 0.33 seconds
Result: PASS

[github-actions]

SubjectPrefix
Desc: Check subject contains "Bluetooth" prefix
Duration: 0.13 seconds
Result: PASS

[github-actions]

BuildKernel
Desc: Build Kernel for Bluetooth
Duration: 27.61 seconds
Result: PASS

[github-actions]

CheckAllWarning
Desc: Run linux kernel with all warning enabled
Duration: 29.95 seconds
Result: PASS

[github-actions]

CheckSparse
Desc: Run sparse tool with linux kernel
Duration: 28.55 seconds
Result: PASS

[github-actions]

BuildKernel32
Desc: Build 32bit Kernel for Bluetooth
Duration: 26.59 seconds
Result: PASS

[github-actions]

TestRunnerSetup
Desc: Setup kernel and bluez for test-runner
Duration: 590.34 seconds
Result: PASS

[github-actions]

TestRunner_mgmt-tester
Desc: Run mgmt-tester with test-runner
Duration: 223.41 seconds
Result: FAIL
Output:

Total: 494, Passed: 489 (99.0%), Failed: 1, Not Run: 4

Failed Test Cases
Read Exp Feature - Success                           Failed       0.253 seconds

[github-actions]

TestRunner_mesh-tester
Desc: Run mesh-tester with test-runner
Duration: 27.00 seconds
Result: FAIL
Output:

Total: 10, Passed: 8 (80.0%), Failed: 2, Not Run: 0

Failed Test Cases
Mesh - Send cancel - 1                               Timed out    2.645 seconds
Mesh - Send cancel - 2                               Timed out    1.988 seconds

[github-actions]

IncrementalBuild
Desc: Incremental build with the patches in the series
Duration: 26.37 seconds
Result: PASS