So, while looking further, I found out that 1aa12bdf1bfb ("bpf: sockmap,
add sock close() hook to remove socks") is not even present on our 4.15
kernels. Not sure why the two commits were backported. The tcp,ulp one
seems fine to keep.
Even 952fad8e3239 ("bpf: fix sock_map_alloc() error path") is not
necessary if we are not setting err right before, which we do with
1aa12bdf1bfb. Other patches do not even apply, they are really dependent
on 1aa12bdf1bfb.
1aa12bdf1bfb, on the other hand, would be necessary, because I was able
to reproduce a BPF program leak. But that requires the use of sockmap,
which is restricted to root userns CAP_NET_ADMIN.
So, we need to pick 1aa12bdf1bfb and all of those fixes, or simply
revert 5028027844cf ("bpf: test_maps, only support ESTABLISHED socks").
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https://bugs.launchpad.net/bugs/1839912
Title:
test_map in ubuntu_bpf failed with "Allowed update sockmap '0:3' not
in ESTABLISHED"
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Bionic:
New
Bug description:
This is at lease a test case regression with the proposed kernel:
selftests: test_maps
========================================
Allowed update sockmap '0:3' not in ESTABLISHED
not ok 1..3 selftests: test_maps [FAIL]
But with older kernel:
selftests: test_maps
========================================
test_maps: OK
ok 1..3 selftests: test_maps [PASS]
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-58-generic 4.15.0-58.64
ProcVersionSignature: User Name 4.15.0-58.64-generic 4.15.18
Uname: Linux 4.15.0-58-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Aug 13 03:42 seq
crw-rw---- 1 root audio 116, 33 Aug 13 03:42 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Tue Aug 13 03:52:52 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
MachineType: Intel Corporation S1200RP
PciMultimedia:
ProcFB: 0 mgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-58-generic
root=UUID=b0d2ae4e-12dd-423e-acea-272ee8b2a893 ro
RelatedPackageVersions:
linux-restricted-modules-4.15.0-58-generic N/A
linux-backports-modules-4.15.0-58-generic N/A
linux-firmware 1.173.10
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/01/2015
dmi.bios.vendor: Intel Corp.
dmi.bios.version: S1200RP.86B.03.02.0003.070120151022
dmi.board.asset.tag: ....................
dmi.board.name: S1200RP
dmi.board.vendor: Intel Corporation
dmi.board.version: G62254-407
dmi.chassis.asset.tag: ....................
dmi.chassis.type: 17
dmi.chassis.vendor: ..............................
dmi.chassis.version: ..................
dmi.modalias:
dmi:bvnIntelCorp.:bvrS1200RP.86B.03.02.0003.070120151022:bd07/01/2015:svnIntelCorporation:pnS1200RP:pvr....................:rvnIntelCorporation:rnS1200RP:rvrG62254-407:cvn..............................:ct17:cvr..................:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: S1200RP
dmi.product.version: ....................
dmi.sys.vendor: Intel Corporation
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