** Attachment added: "current-dmesg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1838982/+attachment/5280970/+files/current-dmesg
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1838982 Title: unable to handle kernel NULL pointer dereference at 000000000000002c (IP: iget5_locked+0x9e/0x1f0) Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Bug description: Crash happens during the setup (dpkg) phase of sbuild using a overlayfs based chroot with the current bionic-proposed kernel (4.15.0-56-generic #62-Ubuntu). [25553.379381] ? ovl_get_origin_fh+0x23/0x150 [overlay] [25553.379386] ? ovl_inode_test+0x20/0x20 [overlay] [25553.379390] ? ovl_lock_rename_workdir+0x50/0x50 [overlay] [25553.379396] ovl_get_inode+0xa2/0x450 [overlay] [25553.379401] ovl_lookup+0x275/0x760 [overlay] [25553.379406] lookup_slow+0xab/0x170 [25553.379409] ? lookup_slow+0xab/0x170 [25553.379413] walk_component+0x1c3/0x470 [25553.379416] ? path_init+0x177/0x2f0 [25553.379419] path_lookupat+0x84/0x1f0 [25553.379423] ? __put_cred+0x3d/0x50 [25553.379426] ? revert_creds+0x2f/0x40 [25553.379429] filename_lookup+0xb6/0x190 [25553.379434] ? __check_object_size+0xaf/0x1b0 [25553.379438] user_path_at_empty+0x36/0x40 [25553.379441] ? user_path_at_empty+0x36/0x40 [25553.379444] SyS_chown+0x4d/0xe0 [25553.379449] do_syscall_64+0x73/0x130 [25553.379453] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1838982/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
