Hi I've updated test plan. Please notice, that this issue is reproducible only on Intel platforms
** Description changed: [ Impact ] mdadm crashes sporadically with error *** buffer overflow detected *** at some invokations: - mdadm --detail-pl - mdadm -CR /dev/md0 -l1 -n2 /dev/nvme0n1 /dev/nvme1n1 *** buffer overflow detected ***: terminated Aborted (core dumped) [ Test Plan ] - Install mdadm - - Have 2 disks to create a RAID devices - Issue this command several times: - + mdadm --detail-pl [ Where problems could occur ] The fix is very small and basically it replaces the unsafe functions call to sprintf by calling snprintf for Intel platforms (platform_intel.c) I do not expect high regression risk. [ Other Info ] mdadm is built with FORTIFY_SOURCE=3 (as it is done in Ubuntu 24.04). - and it uses the unsafe function sprintf() that will cause the + and it uses the unsafe function sprintf() that will cause the buffer-overflow error - - + It is fixed in mdadm upstream: https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/commit/?id=827e1870f320545796d907f50af594e901399417 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2069821 Title: [VROC] [Ub 24.04] mdadm: buffer overflow detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/2069821/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
