This month’s work was dominated by the transition of Debian 12 “bookworm” to support by the LTS team, and by review of some large updates to Linux stable branches.

Linux 6.12 is currently available in bookworm-backports, but that suite will stop accepting uploads after the last bookworm point release. I updated some supporting packages in bookworm in preparation for adding Linux 6.12 there. I also prepared for the possibility that bookworm-backports would close earlier.

Since the LTS team is still also maintaining Debian 11 “bullseye” until August, I reviewed upstream changes for both Linux 5.10 and 6.1 stable branches and reported a number of regressions and other issues.

• Debian packages:
  • firmware-free:
    • Merge requests:
      • merged !11: Apply relevant changes from firmware-nonfree
  • firmware-nonfree:
    • Bugs:
      • closed #1135723: firmware-nonfree: gencontrol conflates initramfs-tools with update-initramfs
      • closed #1135736: firmware-nonfree: suggests initramfs-tools, which is being phased out
      • closed #1137651: firmware-misc-nonfree: Please move firmware-intel-graphics and firmware-nvidia-graphics out of Recommends
      • replied to #1139740: firmware-misc-nonfree should recommend firmware-nvidia-graphics to avoid kernel Oops + black screen
      • replied to #1139746: firmware-realtek: W: Possible missing firmware rtlwifi/rtl8723bu_bt.bin for module rtl8xxxu
    • Merge requests:
      • merged !150: Update and remove obsolete package relations
    • Uploads:
      • uploaded version 20260519-1 to unstable
      • uploaded version 20260519-1~bpo13+1 to trixie-backports
  • kernel-wedge:
    • Uploads:
      • uploaded version 2.106~deb12u1 to bookworm-security
  • linux:
    • Bugs:
      • closed #1128861: linux: when serving NFS, client attempts to lock served files fail with “No locks available”
      • replied to #1140461: spam wave of kernel: tpm tpm0: tpm_try_transmit: send(): error -62
    • Merge requests:
      • reviewed !1936: [sparc64] Add nvme module to scsi-modules udeb
      • reviewed !1948: [amd64] Enable Intel Platform Hardware Support Drivers
      • merged !1977: Fix build failure over missing vdso debug files
      • merged !1981: 6.1 backport “bpf: Free reuseport cBPF prog after RCU grace period.”
      • opened !1984: udeb: Ensure that aead and macsec modules are in the right packages
      • opened !1985: Add d/.flake8 config file to support pylsp
      • merged !1992: 6.1 backport: ip6_vti: set netns_immutable on the fallback device. (CVE-2026-52909)
      • merged !1993: 5.10 backport: ip6_vti: set netns_immutable on the fallback device. (CVE-2026-52909)
      • merged !1999: 6.1 backport: Fix CVE-2026-46331
      • opened !2004: [sparc64] udeb: scsi-modules: Use the default module list
    • Uploads:
      • (LTS) uploaded version 6.12.94-1~bpo12+1 to bookworm-backports
      • uploaded version 7.0.12-2~bpo13+1 to trixie-backports
      • uploaded version 7.1~rc7-1~exp1 to experimental
    • (LTS) updated the bullseye-security branch to 5.10.259, but did not upload this version
    • (LTS) updated the bookworm-security branch to 6.1.176, but did not upload this version
  • (LTS) linux-6.12:
    • prepared this backport package for bookworm-security, but did not upload it yet
  • linux-base:
    • Uploads:
      • uploaded version 4.12.1~deb12u1 to bookworm-security
  • wireless-regdb:
    • Merge requests:
      • opened and merged !8: Update to 2026.05.30
    • Uploads:
      • uploaded version 2026.05.30-1 to unstable
      • uploaded version 2026.05.30-1~deb12u1 to bookworm
      • uploaded version 2026.05.30-1~deb13u1 to trixie
• Debian non-package bugs:
  • release.debian.org:
    • opened and closed #1139579: trixie-pu: package wireless-regdb/2026.05.30-1~deb13u1
    • opened #1139581: trixie-pu: package wireless-regdb/2026.05.30-1~deb13u1
    • opened #1139582: bookworm-pu: package wireless-regdb/2026.05.30-1~deb12u1
• Mailing lists:
  • debian-backports:
    • (LTS) posted EOL for bookworm-backports
  • debian-boot:
    • (LTS) posted and replied to Adding Linux 6.12 udebs for bookworm LTS
  • debian-devel:
    • replied to Understanding CI in Salsa, timeouts and runners
  • debian-kernel:
    • posted Agenda items for kernel-team meeting on 2026-06-10
  • debian-lts:
    • posted and replied to Preparation for Linux 6.12 in bookworm
  • debian-lts-announce:
    • posted [SECURITY] [DLA 4627-1] kernel-wedge update
    • posted [SECURITY] [DLA 4628-1] linux-base update
  • (LTS) stable:
    • reviewed >1000 patches included in 5.10.258-rc1, 5.10.259-rc1, and 6.1.176-rc1
    • replied to [PATCH 5.10 210/589] spi: rockchip: fix controller deregistration
    • replied to [PATCH 5.10 211/589] net/sched: sch_red: Replace direct dequeue call with peek and qdisc_dequeue_peeked
    • replied to [PATCH 5.10 238/342] net: bridge: use a stable FDB dst snapshot in RCU readers
    • replied to [PATCH 5.10 244/589] spi: topcliff-pch: fix use-after-free on unbind
    • replied to [PATCH 5.10 245/589] cpuidle: powerpc: avoid double clear when breaking snooze
    • replied to [PATCH 5.10 257/589] PCI/AER: Stop ruling out unbound devices as error source
    • replied to [PATCH 5.10 263/589] media: uvcvideo: Enable VB2_DMABUF for metadata stream
    • replied to [PATCH 5.10 267/589] media: rc: streamzap: Error handling in probe
    • replied to [PATCH 5.10 274/589] drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()
    • replied to [PATCH 5.10 503/589] crypto: af_alg - Cap AEAD AD length to 0x80000000
    • replied to [PATCH 5.10 035/342] batman-adv: tp_meter: fix race condition in send error reporting
    • replied to [PATCH 5.10 036/342] batman-adv: tp_meter: avoid role confusion in tp_list
    • replied to [PATCH 5.10 310/342] usb: typec: ucsi: Dont update power_supply on power role change if not connected
    • replied to [PATCH 5.15 002/570] ip6_tunnel: Fix usage of skb_vlan_inet_prepare()
    • replied to [PATCH 5.15 299/411] ALSA: aloop: Fix peer runtime UAF during format-change stop
    • replied to [PATCH 5.15 323/411] spi: topcliff-pch: fix controller deregistration
    • replied to [PATCH 6.1 011/522] tools/bootconfig: Cleanup bootconfig footer size calculations
    • replied to [PATCH 6.1 033/522] net/sched: Revert “net/sched: Restrict conditions for adding duplicating netems to qdisc tree”
    • replied to [PATCH 6.1 054/522] selftests/bpf: add generic BPF program tester-loader
    • replied to [PATCH 6.1 064/522] selftests/bpf: S/iptables/iptables-legacy/ in the bpf_nf and xdp_synproxy test
    • replied to [PATCH 6.1 208/522] net: Annotate sk->sk_write_space() for UDP SOCKMAP.
    • replied to [PATCH 6.1 249/522] r8152: Block future register access if register access fails
    • replied to [PATCH 6.1 337/522] arm64/mm: Enable batched TLB flush in unmap_hotplug_range()
    • replied to [PATCH 6.1 342/522] thermal: core: Fix thermal zone governor cleanup issues
    • replied to [PATCH 6.1 375/522] net: ipv4: stop checking crypto_ahash_alignmask
    • replied to [PATCH 6.1 431/522] cgroup/cpuset: Reset DL migration state on can_attach() failure
    • replied to [PATCH 6.1 470/522] usb: musb: omap2430: Fix use-after-free in omap2430_probe()