oss-sec mailing list archives
Re: CVE request: ipv4: Don't do expensive useless work during inetdev destroy
From: cve-assign () mitre org
Date: Tue, 15 Mar 2016 13:02:16 -0400 (EDT)
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Destroy of network interface with huge number of ipv4 addresses keeps rtnl_lock for a very long time (up to hour). It blocks many network related operations,
in this scenerio we do two pointless things which can be very expensive
The problem is especially important for containers, container owner have enough permission to enable this trigger
http://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/patch/?id=fbd40ea0180a2d328c5adc61414dc8bab9335ce2
Use CVE-2016-3156. - -- CVE Assignment Team M/S M300, 202 Burlington Road, Bedford, MA 01730 USA [ A PGP key is available for encrypted communications at http://cve.mitre.org/cve/request_id.html ] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJW6D2BAAoJEL54rhJi8gl5aPcQAI4vToE8HwKoXoPHrBvLzjkC d9CewviuH6iRvsAy7hsZ4XqYTVUe+aP9F+jZU9s+X77Sx2M4OcS3NMm7Q9a0MfKC +ns7JxOPw2T/Lb+fEykx5W+RSLF/gF+UK/CGlEdxP3dQ1jpDwVYEUHYMC3fXxipa 95caC/UkdeK/pm5mIPZx0LaGPuSsGk2R+/sIdwKglcOY0nHEOHfzkWFAwisSStN2 WUerlquTggA7qX+5vX0Q5COKIzmJOpHnzsdJRk1XeJpCKRGacdWmd41rVeNX+yjc jMYc2dXeTwm5pUhb86eX4aeK9hWOq55Fa+STwZRLZ/XreUxovoRat9ClMGujwHpI DatEqVuoX6fWzLNgZk+6DVP615WPlKKrbEGiyQ0n6ffBGsrEoUK4eKhqy9LiSsVF cdvrpbJZsB8Uu2zTvqYY9Qg8JV49UcdfZRnfzFOVNZtjy9Y7m/OLl0f+8VYVW++r yRxEyEHeIA4pOUprA+YrOHrYLqhbddUo/ESLd4MhCJQK3TldsNJ5yoEHb5pGCtxN EF2RYDnChUCBzV9tWKXU4sp39wqDJMJwEoUPAC73aCppmnaqWB76ARs2QEe8PejS hIqiJACuLIEkeCH/tgQ98kiQyPceLDJm7Vp1G0FAg5Qtj/nQlg3ajTdg0J5Jgm4p /q/uXiSvBR9uhsC28/tT =lo4r -----END PGP SIGNATURE-----
Current thread:
- CVE request: ipv4: Don't do expensive useless work during inetdev destroy Vasily Averin (Mar 15)
- Re: CVE request: ipv4: Don't do expensive useless work during inetdev destroy cve-assign (Mar 15)
- Re: CVE request: ipv4: Don't do expensive useless work during inetdev destroy Vladis Dronov (Mar 16)