Description
In the Linux kernel, the following vulnerability has been resolved: eth: sungem: remove .ndo_poll_controller to avoid deadlocks Erhard reports netpoll warnings from sungem: netpoll_send_skb_on_dev(): eth0 enabled interrupts in poll (gem_start_xmit+0x0/0x398) WARNING: CPU: 1 PID: 1 at net/core/netpoll.c:370 netpoll_send_skb+0x1fc/0x20c gem_poll_controller() disables interrupts, which may sleep. We can't sleep in netpoll, it has interrupts disabled completely. Strangely, gem_poll_controller() doesn't even poll the completions, and instead acts as if an interrupt has fired so it just schedules NAPI and exits. None of this has been necessary for years, since netpoll invokes NAPI directly.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
fe09bb619096a0aa139210748ddc668c2dbe2308 to < e22b23f5888a065d084e87db1eec639c445e677faffectedfe09bb619096a0aa139210748ddc668c2dbe2308 to < fbeeb55dbb33d562149c57e794f06b7414e44289affectedfe09bb619096a0aa139210748ddc668c2dbe2308 to < 476adb3bbbd7886e8251d3b9ce2d3c3e680f35d6affectedfe09bb619096a0aa139210748ddc668c2dbe2308 to < 5de5aeb98f9a000adb0db184e32765e4815d860baffectedfe09bb619096a0aa139210748ddc668c2dbe2308 to < faf94f1eb8a34b2c31b2042051ef36f63420ecceaffectedfe09bb619096a0aa139210748ddc668c2dbe2308 to < 6400d205fbbcbcf9b8510157e1f379c1d7e2e937affectedfe09bb619096a0aa139210748ddc668c2dbe2308 to < ac0a230f719b02432d8c7eba7615ebd691da86f4affected
Linux Linux
Default version status: affected
3.1affected0 to < 3.1unaffected5.10.219 to ≤ 5.10.*unaffected5.15.161 to ≤ 5.15.*unaffected6.1.93 to ≤ 6.1.*unaffected6.6.33 to ≤ 6.6.*unaffected6.8.12 to ≤ 6.8.*unaffected6.9.3 to ≤ 6.9.*unaffected6.10 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/e22b23f5888a065d084e87db1eec639c445e677f ↗
- https://git.kernel.org/stable/c/fbeeb55dbb33d562149c57e794f06b7414e44289 ↗
- https://git.kernel.org/stable/c/476adb3bbbd7886e8251d3b9ce2d3c3e680f35d6 ↗
- https://git.kernel.org/stable/c/5de5aeb98f9a000adb0db184e32765e4815d860b ↗
- https://git.kernel.org/stable/c/faf94f1eb8a34b2c31b2042051ef36f63420ecce ↗
- https://git.kernel.org/stable/c/6400d205fbbcbcf9b8510157e1f379c1d7e2e937 ↗
- https://git.kernel.org/stable/c/ac0a230f719b02432d8c7eba7615ebd691da86f4 ↗