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daedalus-v4l2{,-dkms}: f04d700 -> f55b2cd (UAF lifetime fix)

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Bumps all 4 daedalus packages (arch + debian × userspace + dkms)
to pick up daedalus-v4l2 f55b2cd: "kernel: media_request_get/put
around inf->req (UAF safety)".

Closes the SHIP-WITH-EYES-OPEN concern Sonnet flagged in the
pre-deployment review — without explicit media_request_get on
capture + media_request_put on completion, a concurrent
MEDIA_IOC_REQUEST_REINIT or process-kill triggering
buf_request_complete from the cancel path could drop vb2's
reference before our completion handler ran, leaving inf->req
dangling through v4l2_ctrl_request_complete + buf_done.

Matches the cedrus / rkvdec refcount pattern.  No protocol
change, no API change, no consumer-side adjustment required.
Same byte-exact output verified on hertz post-fix (libva path:
match; standalone test_m2m_stream: 30/30 frames).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Markus Fritsche
2026-05-18 18:39:40 +00:00
parent 4776dc01d2
commit 1bd11eaf27
6 changed files with 14 additions and 14 deletions
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arch/daedalus-v4l2-dkms/PKGBUILD
+2 -2
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@@ -18,9 +18,9 @@ _module=daedalus_v4l2
# Same pin as arch/daedalus-v4l2 — keep kernel module + daemon
# bit-versioned together so the chardev wire protocol stays in sync.
_commit=f04d7000f858fe51d867aba14a529d3aef4fbd54
_commit=f55b2cdab8a8c0bc04e8c1bb1d0b6ca85e7d96d2
pkgver=0.1.0.r15.f04d700
pkgver=0.1.0.r16.f55b2cd
pkgrel=1
pkgdesc="V4L2 stateless decoder shim kernel module (DKMS) — Pi 5 / CM5"
arch=('any')