In the Linux kernel, the following vulnerability has been resolved:
ice: Fix crash by keep old cfg when update TCs more than queues
There are problems if allocated queues less than Traffic Classes.
Commit a632b2a4c920 ("ice: ethtool: Prohibit improper channel config for DCB") already disallow setting less queues than TCs.
Another case is if we first set less queues, and later update more TCs config due to LLDP, ice_vsi_cfg_tc() will failed but left dirty num_txq/rxq and tc_cfg in vsi, that will cause invalid pointer access.
[ 95.968089] ice 0000:3b:00.1: More TCs defined than queues/rings allocated. [ 95.968092] ice 0000:3b:00.1: Trying to use more Rx queues (8), than were allocated (1)! [ 95.968093] ice 0000:3b:00.1: Failed to config TC for VSI index: 0 [ 95.969621] general protection fault: 0000 [#1] SMP NOPTI [ 95.969705] CPU: 1 PID: 58405 Comm: lldpad Kdump: loaded Tainted: G U W O --------- -t - 4.18.0 #1 [ 95.969867] Hardware name: O.E.M/BC11SPSCB10, BIOS 8.23 12/30/2021 [ 95.969992] RIP: 0010:devm_kmalloc+0xa/0x60 [ 95.970052] Code: 5c ff ff ff 31 c0 5b 5d 41 5c c3 b8 f4 ff ff ff eb f4 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 89 d1 <8b> 97 60 02 00 00 48 8d 7e 18 48 39 f7 72 3f 55 89 ce 53 48 8b 4c [ 95.970344] RSP: 0018:ffffc9003f553888 EFLAGS: 00010206 [ 95.970425] RAX: dead000000000200 RBX: ffffea003c425b00 RCX: 00000000006080c0 [ 95.970536] RDX: 00000000006080c0 RSI: 0000000000000200 RDI: dead000000000200 [ 95.970648] RBP: dead000000000200 R08: 00000000000463c0 R09: ffff888ffa900000 [ 95.970760] R10: 0000000000000000 R11: 0000000000000002 R12: ffff888ff6b40100 [ 95.970870] R13: ffff888ff6a55018 R14: 0000000000000000 R15: ffff888ff6a55460 [ 95.970981] FS: 00007f51b7d24700(0000) GS:ffff88903ee80000(0000) knlGS:0000000000000000 [ 95.971108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.971197] CR2: 00007fac5410d710 CR3: 0000000f2c1de002 CR4: 00000000007606e0 [ 95.971309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.971419] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.971530] PKRU: 55555554 [ 95.971573] Call Trace: [ 95.971622] ice_setup_rx_ring+0x39/0x110 [ice] [ 95.971695] ice_vsi_setup_rx_rings+0x54/0x90 [ice] [ 95.971774] ice_vsi_open+0x25/0x120 [ice] [ 95.971843] ice_open_internal+0xb8/0x1f0 [ice] [ 95.971919] ice_ena_vsi+0x4f/0xd0 [ice] [ 95.971987] ice_dcb_ena_dis_vsi.constprop.5+0x29/0x90 [ice] [ 95.972082] ice_pf_dcb_cfg+0x29a/0x380 [ice] [ 95.972154] ice_dcbnl_setets+0x174/0x1b0 [ice] [ 95.972220] dcbnl_ieee_set+0x89/0x230 [ 95.972279] ? dcbnl_ieee_del+0x150/0x150 [ 95.972341] dcb_doit+0x124/0x1b0 [ 95.972392] rtnetlink_rcv_msg+0x243/0x2f0 [ 95.972457] ? dcb_doit+0x14d/0x1b0 [ 95.972510] ? __kmalloc_node_track_caller+0x1d3/0x280 [ 95.972591] ? rtnl_calcit.isra.31+0x100/0x100 [ 95.972661] netlink_rcv_skb+0xcf/0xf0 [ 95.972720] netlink_unicast+0x16d/0x220 [ 95.972781] netlink_sendmsg+0x2ba/0x3a0 [ 95.975891] sock_sendmsg+0x4c/0x50 [ 95.979032] ___sys_sendmsg+0x2e4/0x300 [ 95.982147] ? kmem_cache_alloc+0x13e/0x190 [ 95.985242] ? __wake_up_common_lock+0x79/0x90 [ 95.988338] ? __check_object_size+0xac/0x1b0 [ 95.991440] ? _copy_to_user+0x22/0x30 [ 95.994539] ? move_addr_to_user+0xbb/0xd0 [ 95.997619] ? __sys_sendmsg+0x53/0x80 [ 96.000664] __sys_sendmsg+0x53/0x80 [ 96.003747] do_syscall_64+0x5b/0x1d0 [ 96.006862] entry_SYSCALL_64_after_hwframe+0x65/0xca
Only update num_txq/rxq when passed check, and restore tc_cfg if setup queue map failed.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Apr 28, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernelUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perf | Oct 9, 2024 | Apr 28, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Oct 9, 2024 | Apr 28, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 28, 2024 |
| Suse | — | Upgrade reiserfs-kmp-defaultUpgrade dlm-kmp-64kbUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-marvellUpgrade dlm-kmp-defaultUpgrade gfs2-kmp-rtUpgrade kernel-rt_debugUpgrade dtb-amlogicUpgrade dtb-appleUpgrade kernel-64kb-optionalUpgrade kernel-azure-vdsoUpgrade dtb-hisiliconUpgrade cluster-md-kmp-azureUpgrade kernel-rt-optionalUpgrade kselftests-kmp-azureUpgrade dtb-lgUpgrade kernel-zfcpdumpUpgrade kernel-macrosUpgrade gfs2-kmp-defaultUpgrade kernel-debug-vdsoUpgrade kernel-azureUpgrade kselftests-kmp-64kbUpgrade kernel-azure-extraUpgrade kernel-source-vanillaUpgrade dtb-alteraUpgrade kernel-default-develUpgrade kernel-kvmsmall-develUpgrade kernel-rt-vdsoUpgrade kselftests-kmp-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-64kbUpgrade reiserfs-kmp-rtUpgrade dtb-amazonUpgrade kernel-debug-livepatch-develUpgrade dtb-renesasUpgrade kernel-docs-htmlUpgrade kernel-kvmsmall-vdsoUpgrade dtb-freescaleUpgrade ocfs2-kmp-64kbUpgrade dtb-broadcomUpgrade dtb-caviumUpgrade kernel-rt_debug-vdsoUpgrade kernel-64kb-livepatch-develUpgrade kernel-default-livepatch-develUpgrade gfs2-kmp-azureUpgrade kernel-azure-optionalUpgrade kernel-default-livepatchUpgrade kernel-debugUpgrade kernel-syms-rtUpgrade kernel-source-rtUpgrade gfs2-kmp-64kbUpgrade dtb-socionextUpgrade dtb-amdUpgrade kernel-rt_debug-develUpgrade kernel-rt-livepatch-develUpgrade kernel-default-baseUpgrade kernel-debug-develUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-source-azureUpgrade kernel-default-extraUpgrade dtb-sprdUpgrade kernel-defaultUpgrade dtb-exynosUpgrade kernel-sourceUpgrade dtb-xilinxUpgrade kernel-azure-livepatch-develUpgrade kernel-rt-develUpgrade kernel-syms-azureUpgrade kernel-default-vdsoUpgrade kernel-64kb-extraUpgrade dtb-allwinnerUpgrade kernel-kvmsmallUpgrade kernel-symsUpgrade kernel-obs-buildUpgrade dlm-kmp-azureUpgrade kernel-obs-qaUpgrade cluster-md-kmp-64kbUpgrade dtb-apmUpgrade dlm-kmp-rtUpgrade kernel-devel-azureUpgrade kernel-azure-develUpgrade dtb-armUpgrade kernel-default-base-rebuildUpgrade kernel-devel-rtUpgrade dtb-rockchipUpgrade reiserfs-kmp-azureUpgrade ocfs2-kmp-defaultUpgrade kselftests-kmp-defaultUpgrade cluster-md-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kernel-rt-extraUpgrade kernel-64kb-develUpgrade kernel-develUpgrade cluster-md-kmp-rtUpgrade ocfs2-kmp-azureUpgrade kernel-default-optionalUpgrade dtb-nvidiaUpgrade dtb-qcomUpgrade kernel-rt-livepatchUpgrade dtb-mediatekUpgrade kernel-docsUpgrade kernel-rt | Aug 9, 2024 | Apr 28, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub