FS#77451 - [glibc] `ip` with glibc-2.37-2 truncates some IPv6 routes
Attached to Project:
Arch Linux
Opened by Frantisek Sumsal (mrc0mmand) - Friday, 10 February 2023, 11:16 GMT
Last edited by freswa (frederik) - Monday, 13 February 2023, 21:47 GMT
Opened by Frantisek Sumsal (mrc0mmand) - Friday, 10 February 2023, 11:16 GMT
Last edited by freswa (frederik) - Monday, 13 February 2023, 21:47 GMT
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Details
Description:
One of our systemd-networkd tests in the upstream systemd CI started failing after upgrading to the latest Arch package set. After some local debugging it looks like ip truncates some IPv6 routes with glibc-2.37-2: # pacman -Q glibc glibc 2.36-7 # ip route add dev eth0 fd8d:4d6d:3ccb:500:c79:2339:edce:ece1 proto static # ip route add dev eth0 fd8d:4d6d:3ccb:1e54:1415:35d0::/96 proto static # ip -6 r s ::1 dev lo proto kernel metric 256 pref medium fd8d:4d6d:3ccb:500:c79:2339:edce:ece1 dev eth0 proto static metric 1024 pref medium fd8d:4d6d:3ccb:1e54:1415:35d0::/96 dev eth0 proto static metric 1024 pref medium fe80::/64 dev eth0 proto kernel metric 256 pref medium # pacman -S glibc resolving dependencies... looking for conflicting packages... Packages (1) glibc-2.37-2 Total Download Size: 9.88 MiB Total Installed Size: 47.46 MiB Net Upgrade Size: 0.13 MiB :: Proceed with installation? [Y/n] y ... # ip -6 r s ::1 dev lo proto kernel metric 256 pref medium fd8d:4d6d:3ccb:500:c79:2339:edc dev eth0 proto static metric 1024 pref medium fd8d:4d6d:3ccb:1e54:1415:35d0::/96 dev eth0 proto static metric 1024 pref medium fe80::/64 dev eth0 proto kernel metric 256 pref medium This can be seen more prominently in the test logs, e.g: 1) Old glibc: # ip -6 route show dev wg98 table 1234 fd31:bf08:57cb::/48 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:c79:2339:edce:ece1 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:1dbf:ca8a:32d3:dd81 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:1e54:1415:35d0:a47c proto static metric 123 pref medium fd8d:4d6d:3ccb:500:270d:b5dd:4a3f:8909 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:5660:679d:3532:94d8 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:6825:573f:30f3:9472 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:6f2e:6888:c6fd:dfb9 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:8d4d:bab:7280:a09a proto static metric 123 pref medium fd8d:4d6d:3ccb:500:900c:d437:ec27:8822 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:9742:9931:5217:18d5 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:9c11:d820:2e96:9be0 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:a072:80da:de4f:add1 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:a3f3:df38:19b0:721 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:a94b:cd6a:a32d:90e6 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:b39c:9cdc:755a:ead3 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:b684:4f81:2e3e:132e proto static metric 123 pref medium fd8d:4d6d:3ccb:500:bad5:495d:8e9c:3427 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:bfe5:c3c3:5d77:fcb proto static metric 123 pref medium fd8d:4d6d:3ccb:500:c624:6bf7:4c09:3b59 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:d4f9:5dc:9296:a1a proto static metric 123 pref medium fd8d:4d6d:3ccb:500:dcdd:d33b:90c9:6088 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:e2e1:ae15:103f:f376 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:f349:c4f0:10c1:6b4 proto static metric 123 pref medium fd8d:4d6d:3ccb:c79:2339:edce::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:1dbf:ca8a:32d3::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:1e54:1415:35d0::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:270d:b5dd:4a3f::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:5660:679d:3532::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:6825:573f:30f3::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:6f2e:6888:c6fd::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:8d4d:bab:7280::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:900c:d437:ec27::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:9742:9931:5217::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:9c11:d820:2e96::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:a072:80da:de4f::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:a3f3:df38:19b0::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:a94b:cd6a:a32d::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:b39c:9cdc:755a::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:b684:4f81:2e3e::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:bad5:495d:8e9c::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:bfe5:c3c3:5d77::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:c624:6bf7:4c09::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:d4f9:5dc:9296::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:dcdd:d33b:90c9::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:e2e1:ae15:103f::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:f349:c4f0:10c1::/96 proto static metric 123 pref medium 2) New glibc # ip -6 route show dev wg98 table 1234 fd31:bf08:57cb::/48 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:c79:2339:edc proto static metric 123 pref medium fd8d:4d6d:3ccb:500:1dbf:ca8a:32 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:1e54:1415:35 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:270d:b5dd:4a proto static metric 123 pref medium fd8d:4d6d:3ccb:500:5660:679d:35 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:6825:573f:30 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:6f2e:6888:c6 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:8d4d:bab:728 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:900c:d437:ec proto static metric 123 pref medium fd8d:4d6d:3ccb:500:9742:9931:52 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:9c11:d820:2e proto static metric 123 pref medium fd8d:4d6d:3ccb:500:a072:80da:de proto static metric 123 pref medium fd8d:4d6d:3ccb:500:a3f3:df38:19 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:a94b:cd6a:a3 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:b39c:9cdc:75 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:b684:4f81:2e proto static metric 123 pref medium fd8d:4d6d:3ccb:500:bad5:495d:8e proto static metric 123 pref medium fd8d:4d6d:3ccb:500:bfe5:c3c3:5d proto static metric 123 pref medium fd8d:4d6d:3ccb:500:c624:6bf7:4c proto static metric 123 pref medium fd8d:4d6d:3ccb:500:d4f9:5dc:929 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:dcdd:d33b:90 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:e2e1:ae15:10 proto static metric 123 pref medium fd8d:4d6d:3ccb:500:f349:c4f0:10 proto static metric 123 pref medium fd8d:4d6d:3ccb:c79:2339:edce::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:1dbf:ca8a:32d3::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:1e54:1415:35d0::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:270d:b5dd:4a3f::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:5660:679d:3532::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:6825:573f:30f3::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:6f2e:6888:c6fd::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:8d4d:bab:7280::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:900c:d437:ec27::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:9742:9931:5217::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:9c11:d820:2e96::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:a072:80da:de4f::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:a3f3:df38:19b0::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:a94b:cd6a:a32d::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:b39c:9cdc:755a::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:b684:4f81:2e3e::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:bad5:495d:8e9c::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:bfe5:c3c3:5d77::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:c624:6bf7:4c09::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:d4f9:5dc:9296::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:dcdd:d33b:90c9::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:e2e1:ae15:103f::/96 proto static metric 123 pref medium fd8d:4d6d:3ccb:f349:c4f0:10c1::/96 proto static metric 123 pref medium |
This task depends upon
Closed by freswa (frederik)
Monday, 13 February 2023, 21:47 GMT
Reason for closing: Fixed
Additional comments about closing: iproute2-6.1.0-5
Monday, 13 February 2023, 21:47 GMT
Reason for closing: Fixed
Additional comments about closing: iproute2-6.1.0-5
Comment by freswa (frederik) -
Friday, 10 February 2023, 20:49 GMT
Bisected to 642933158e7cf072d873231b1a9bb03291f2b989
Comment by freswa (frederik) -
Friday, 10 February 2023, 21:16 GMT
Report submitted upstream:
https://sourceware.org/bugzilla/show_bug.cgi?id=30112
Comment by freswa (frederik) -
Monday, 13 February 2023, 09:19 GMT
Please check iproute2-6.1.0-5