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 kernel-tools-libsUpgrade python3-perfUpgrade bpftoolUpgrade kernel-tools | Oct 9, 2024 | Apr 28, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python3-perfUpgrade kernel-abi-stablelists | Oct 9, 2024 | Apr 28, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 28, 2024 |
| Suse | — | Upgrade reiserfs-kmp-64kbUpgrade dtb-caviumUpgrade ocfs2-kmp-64kbUpgrade dtb-broadcomUpgrade gfs2-kmp-azureUpgrade kernel-kvmsmall-vdsoUpgrade dlm-kmp-defaultUpgrade kernel-rt-optionalUpgrade dlm-kmp-64kbUpgrade kernel-debug-vdsoUpgrade kernel-source-vanillaUpgrade kselftests-kmp-64kbUpgrade reiserfs-kmp-defaultUpgrade dtb-marvellUpgrade kernel-64kbUpgrade kernel-64kb-livepatch-develUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-default-develUpgrade kernel-rt-vdsoUpgrade dtb-amlogicUpgrade kernel-rt-livepatch-develUpgrade kernel-debug-livepatch-develUpgrade kernel-source-azureUpgrade kernel-debug-develUpgrade dtb-amdUpgrade kernel-rt_debugUpgrade dtb-renesasUpgrade kernel-azureUpgrade kernel-default-livepatchUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-alteraUpgrade kernel-source-rtUpgrade dtb-appleUpgrade kernel-default-baseUpgrade cluster-md-kmp-azureUpgrade kernel-rt_debug-vdsoUpgrade kernel-rt_debug-develUpgrade kernel-debugUpgrade kernel-kvmsmall-develUpgrade dtb-freescaleUpgrade kernel-64kb-optionalUpgrade kernel-azure-optionalUpgrade kernel-default-livepatch-develUpgrade gfs2-kmp-64kbUpgrade dtb-socionextUpgrade kernel-syms-rtUpgrade kernel-zfcpdumpUpgrade gfs2-kmp-defaultUpgrade dtb-lgUpgrade kernel-azure-vdsoUpgrade reiserfs-kmp-rtUpgrade dtb-hisiliconUpgrade dtb-amazonUpgrade kernel-macrosUpgrade kselftests-kmp-azureUpgrade kselftests-kmp-rtUpgrade kernel-docs-htmlUpgrade kernel-azure-extraUpgrade gfs2-kmp-rtUpgrade kernel-kvmsmallUpgrade kernel-default-base-rebuildUpgrade reiserfs-kmp-azureUpgrade kernel-azure-livepatch-develUpgrade kernel-symsUpgrade kernel-64kb-extraUpgrade kernel-obs-qaUpgrade kernel-azure-develUpgrade dtb-apmUpgrade dtb-armUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-64kbUpgrade kernel-defaultUpgrade kernel-develUpgrade dtb-exynosUpgrade kernel-sourceUpgrade kernel-64kb-develUpgrade kernel-rt-extraUpgrade dtb-sprdUpgrade cluster-md-kmp-defaultUpgrade kernel-rtUpgrade dtb-xilinxUpgrade dtb-qcomUpgrade ocfs2-kmp-rtUpgrade kernel-devel-rtUpgrade kselftests-kmp-defaultUpgrade ocfs2-kmp-defaultUpgrade dtb-rockchipUpgrade kernel-rt-develUpgrade kernel-default-vdsoUpgrade kernel-syms-azureUpgrade dtb-nvidiaUpgrade ocfs2-kmp-azureUpgrade kernel-devel-azureUpgrade dtb-allwinnerUpgrade cluster-md-kmp-rtUpgrade kernel-docsUpgrade dlm-kmp-azureUpgrade kernel-rt-livepatchUpgrade kernel-default-optionalUpgrade kernel-obs-buildUpgrade kernel-default-extraUpgrade dtb-mediatek | Aug 9, 2024 | Apr 28, 2024 |
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