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