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Bug#1019270: cups-browsed: Query to /proc/sys/net/ipv6/conf/all/disable_ipv6 blocked by AppArmor, spamming syslog



Package: cups-browsed
Version: 1.28.16-1
Severity: normal

Dear Debian cups-filters packagers,

On my current Debian/Sid system (as of Sep 2022), the syslog keeps printing
the following messages:

kernel: audit: type=1400 audit(1662483939.030:193): apparmor="DENIED"
operation="open" profile="/usr/sbin/cups-browsed"
name="/proc/sys/net/ipv6/conf/all/disable_ipv6" pid=3336 comm="cups-browsed"
requested_mask="r" denied_mask="r" fsuid=0 ouid=0

kernel: audit: type=1400 audit(1662483939.030:194): apparmor="DENIED"
operation="open" profile="/usr/sbin/cups-browsed"
name="/proc/sys/net/ipv6/conf/all/disable_ipv6" pid=3336 comm="cups-browsed"
requested_mask="r" denied_mask="r" fsuid=0 ouid=0

audit[3336]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cups-
browsed" name="/proc/sys/net/ipv6/conf/all/disable_ipv6" pid=3336
comm="cups-browsed" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

audit[3336]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/cups-
browsed" name="/proc/sys/net/ipv6/conf/all/disable_ipv6" pid=3336
comm="cups-browsed" requested_mask="r" denied_mask="r" fsuid=0 ouid=0



These logs keeps spam my syslog. Please consider looking into it and adjust
AppArmor profile or cups-browsed program accordingly.

Thanks,
Boyuan Yang

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