cve-2021-47619
Vulnerability from cvelistv5
Published
2024-06-20 11:08
Modified
2024-09-11 17:34
Severity
Summary
i40e: Fix queues reservation for XDP
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/00eddb0e4ea115154581d1049507a996acfc2d3e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4b3aa858268b7b9aeef02e5f9c4cd8f8fac101c8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/768eb705e6381f0c70ca29d4e66f19790d5d19a1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92947844b8beee988c0ce17082b705c2f75f0742
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be6998f232b8e4ca8225029e305b8329d89bfd59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d46fa4ea9756ef6cbcf9752d0832cc66e2d7121b
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix queues reservation for XDP\n\nWhen XDP was configured on a system with large number of CPUs\nand X722 NIC there was a call trace with NULL pointer dereference.\n\ni40e 0000:87:00.0: failed to get tracking for 256 queues for VSI 0 err -12\ni40e 0000:87:00.0: setup of MAIN VSI failed\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nRIP: 0010:i40e_xdp+0xea/0x1b0 [i40e]\nCall Trace:\n? i40e_reconfig_rss_queues+0x130/0x130 [i40e]\ndev_xdp_install+0x61/0xe0\ndev_xdp_attach+0x18a/0x4c0\ndev_change_xdp_fd+0x1e6/0x220\ndo_setlink+0x616/0x1030\n? ahci_port_stop+0x80/0x80\n? ata_qc_issue+0x107/0x1e0\n? lock_timer_base+0x61/0x80\n? __mod_timer+0x202/0x380\nrtnl_setlink+0xe5/0x170\n? bpf_lsm_binder_transaction+0x10/0x10\n? security_capable+0x36/0x50\nrtnetlink_rcv_msg+0x121/0x350\n? rtnl_calcit.isra.0+0x100/0x100\nnetlink_rcv_skb+0x50/0xf0\nnetlink_unicast+0x1d3/0x2a0\nnetlink_sendmsg+0x22a/0x440\nsock_sendmsg+0x5e/0x60\n__sys_sendto+0xf0/0x160\n? __sys_getsockname+0x7e/0xc0\n? _copy_from_user+0x3c/0x80\n? __sys_setsockopt+0xc8/0x1a0\n__x64_sys_sendto+0x20/0x30\ndo_syscall_64+0x33/0x40\nentry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7f83fa7a39e0\n\nThis was caused by PF queue pile fragmentation due to\nflow director VSI queue being placed right after main VSI.\nBecause of this main VSI was not able to resize its\nqueue allocation for XDP resulting in no queues allocated\nfor main VSI when XDP was turned on.\n\nFix this by always allocating last queue in PF queue pile\nfor a flow director VSI."
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  }
}


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