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