On 5/22/25 4:55 PM, Luca Boccassi wrote: > On Thu, 22 May 2025 at 20:41, Adel Belhouane <[email protected]> wrote: >> >> Package: iproute2 >> Version: 6.14.0-3 >> Severity: normal >> X-Debbugs-Cc: [email protected] >> >> Dear Maintainer, >> >> Having iproute2 >= 6.14 while running a linux kernel < 6.14 >> triggers this bug (tested using >> debian-13-nocloud-amd64-daily-20250520-2118.qcow2) >> >> root@localhost:~# ip monitor >> Failed to add ipv4 mcaddr group to list >> >> More specifically this subcommand, which didn't exist in iproute2 6.13 >> is affected: >> >> root@localhost:~# ip mon maddr >> Failed to add ipv4 mcaddr group to list >> root@localhost:~# ip -6 mon maddr >> Failed to add ipv6 mcaddr group to list >> >> causing the generic "ip monitor" command to fail. >> >> As trixie will use a 6.12.x kernel, trixie is affected. >> >> bookworm's iproute2/bookworm-backports is also affected since currently >> bookworm's backport kernel is also 6.12.x >> >> Workarounds: >> * upgrade the kernel to experimental's (currently) 6.14.6-1~exp1 >> * downgrade iproute2 to 6.13.0-1 (using snapshot.d.o) >> * on bookworm downgrade (using snapshot.d.o) >> iproute2 backport to 6.13.0-1~bpo12+1 >> >> Details I could gather: >> >> This appears to come from this iproute2 6.14's commit: >> >> https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?h=v6.14.0&id=7240e0e40f8332dd9f11348700c0c96b8df4ca5b >> >> which appears to depend on new kernel 6.14 rtnetlink features as described >> in Kernelnewbies ( https://kernelnewbies.org/Linux_6.14#Networking ): >> >> Add ipv6 anycast join/leave notifications >> >> with this (kernel 6.14) commit: >> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=33d97a07b3ae6fa713919de4e1864ca04fff8f80 > > Hi Stephen and David, > > It looks like there's a regression in iproute2 6.14, and 'ip monitor' > no longer works with kernels < 6.14. Could you please have a look when > you have a moment? Thanks!
were not a lot of changes, so most likely the multiaddress or anycast address changes from Yuyang Huang. Please take a look.
