** Description changed: OS: Ubuntu 26.04 snapd (deb): 2.74.1+ubuntu26.04.3 snapd (snap): 2.74.1 The error (from dmesg): apparmor="DENIED" operation="open" class="file" profile="snap.slack.hook.configure" name="/proc/[PID]/mountinfo" pid=[PID] comm="snap-exec" requested_mask="r" denied_mask="r" The result: Slack fails to launch with no terminal output The application also fails due to Seccomp violations. dmesg shows multiple type=1326 audits where the process is killed for attempting to use syscalls not yet whitelisted in the Ubuntu 26.04 snapd templates: - * syscall 425 (landlock_create) + * syscall 425 (io_uring_op) * syscall 330 (pkey_mprotect) * syscall 203 (sched_setaffinity) audit log snippet: [93569.641540] audit: type=1326 audit(1776257860.317:3383): auid=1000 uid=1000 gid=1000 ses=3 subj=snap.slack.slack pid=240874 comm="slack" exe="/snap/slack/224/usr/lib/slack/slack" sig=0 arch=c000003e syscall=425 compat=0 ip=0x7bd8351039ad code=0x50000
** Description changed: OS: Ubuntu 26.04 snapd (deb): 2.74.1+ubuntu26.04.3 snapd (snap): 2.74.1 The error (from dmesg): apparmor="DENIED" operation="open" class="file" profile="snap.slack.hook.configure" name="/proc/[PID]/mountinfo" pid=[PID] comm="snap-exec" requested_mask="r" denied_mask="r" The result: Slack fails to launch with no terminal output The application also fails due to Seccomp violations. dmesg shows multiple type=1326 audits where the process is killed for attempting to use syscalls not yet whitelisted in the Ubuntu 26.04 snapd templates: * syscall 425 (io_uring_op) * syscall 330 (pkey_mprotect) * syscall 203 (sched_setaffinity) audit log snippet: [93569.641540] audit: type=1326 audit(1776257860.317:3383): auid=1000 uid=1000 gid=1000 ses=3 subj=snap.slack.slack pid=240874 comm="slack" exe="/snap/slack/224/usr/lib/slack/slack" sig=0 arch=c000003e syscall=425 compat=0 ip=0x7bd8351039ad code=0x50000 + + ... + + [99592.653714] kauditd_printk_skb: 125 callbacks suppressed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2148467 Title: Slack snap (rev 224) hook.configure AppArmor denial on /proc/mountinfo (Ubuntu 26.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/2148467/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
