In the Linux kernel, the following vulnerability has been resolved:
net/smc: fix wrong list_del in smc_lgr_cleanup_early
smc_lgr_cleanup_early() meant to delete the link group from the link group list, but it deleted the list head by mistake.
This may cause memory corruption since we didn't remove the real link group from the list and later memseted the link group structure. We got a list corruption panic when testing:
[ 231.277259] list_del corruption. prev->next should be ffff8881398a8000, but was 0000000000000000 [ 231.278222] ------------[ cut here ]------------ [ 231.278726] kernel BUG at lib/list_debug.c:53! [ 231.279326] invalid opcode: 0000 [#1] SMP NOPTI [ 231.279803] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.10.46+ #435 [ 231.280466] Hardware name: Alibaba Cloud ECS, BIOS 8c24b4c 04/01/2014 [ 231.281248] Workqueue: events smc_link_down_work [ 231.281732] RIP: 0010:__list_del_entry_valid+0x70/0x90 [ 231.282258] Code: 4c 60 82 e8 7d cc 6a 00 0f 0b 48 89 fe 48 c7 c7 88 4c 60 82 e8 6c cc 6a 00 0f 0b 48 89 fe 48 c7 c7 c0 4c 60 82 e8 5b cc 6a 00 <0f> 0b 48 89 fe 48 c7 c7 00 4d 60 82 e8 4a cc 6a 00 0f 0b cc cc cc [ 231.284146] RSP: 0018:ffffc90000033d58 EFLAGS: 00010292 [ 231.284685] RAX: 0000000000000054 RBX: ffff8881398a8000 RCX: 0000000000000000 [ 231.285415] RDX: 0000000000000001 RSI: ffff88813bc18040 RDI: ffff88813bc18040 [ 231.286141] RBP: ffffffff8305ad40 R08: 0000000000000003 R09: 0000000000000001 [ 231.286873] R10: ffffffff82803da0 R11: ffffc90000033b90 R12: 0000000000000001 [ 231.287606] R13: 0000000000000000 R14: ffff8881398a8000 R15: 0000000000000003 [ 231.288337] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 231.289160] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 231.289754] CR2: 0000000000e72058 CR3: 000000010fa96006 CR4: 00000000003706f0 [ 231.290485] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 231.291211] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 231.291940] Call Trace: [ 231.292211] smc_lgr_terminate_sched+0x53/0xa0 [ 231.292677] smc_switch_conns+0x75/0x6b0 [ 231.293085] ? update_load_avg+0x1a6/0x590 [ 231.293517] ? ttwu_do_wakeup+0x17/0x150 [ 231.293907] ? update_load_avg+0x1a6/0x590 [ 231.294317] ? newidle_balance+0xca/0x3d0 [ 231.294716] smcr_link_down+0x50/0x1a0 [ 231.295090] ? __wake_up_common_lock+0x77/0x90 [ 231.295534] smc_link_down_work+0x46/0x60 [ 231.295933] process_one_work+0x18b/0x350
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/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 | May 24, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 24, 2024 |
| Suse | — | Upgrade kernel-docsUpgrade cluster-md-kmp-rtUpgrade dtb-armUpgrade kernel-devel-rtUpgrade kernel-defaultUpgrade reiserfs-kmp-azureUpgrade kernel-preemptUpgrade dtb-mediatekUpgrade ocfs2-kmp-defaultUpgrade cluster-md-kmp-defaultUpgrade dtb-nvidiaUpgrade kernel-debugUpgrade dtb-qcomUpgrade kernel-64kb-develUpgrade kernel-syms-azureUpgrade kernel-macrosUpgrade kernel-develUpgrade ocfs2-kmp-rtUpgrade kernel-default-base-rebuildUpgrade kernel-obs-qaUpgrade kernel-default-optionalUpgrade kernel-default-extraUpgrade kernel-devel-azureUpgrade kernel-kvmsmallUpgrade ocfs2-kmp-azureUpgrade kernel-64kb-extraUpgrade kernel-rt-livepatchUpgrade kernel-symsUpgrade dtb-exynosUpgrade dtb-rockchipUpgrade kernel-rt-develUpgrade dlm-kmp-azureUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-azure-develUpgrade kselftests-kmp-rtUpgrade dtb-xilinxUpgrade kernel-azure-livepatch-develUpgrade dtb-allwinnerUpgrade dlm-kmp-rtUpgrade kselftests-kmp-defaultUpgrade dtb-sprdUpgrade kernel-default-vdsoUpgrade dtb-apmUpgrade kernel-rtUpgrade cluster-md-kmp-64kbUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-azure-vdsoUpgrade kernel-64kbUpgrade dtb-hisiliconUpgrade kernel-kvmsmall-develUpgrade gfs2-kmp-defaultUpgrade kernel-debug-develUpgrade kernel-azureUpgrade kselftests-kmp-64kbUpgrade dtb-broadcomUpgrade kernel-debug-livepatch-develUpgrade kernel-zfcpdumpUpgrade dtb-amazonUpgrade reiserfs-kmp-defaultUpgrade kernel-source-vanillaUpgrade gfs2-kmp-azureUpgrade dlm-kmp-defaultUpgrade dlm-kmp-64kbUpgrade kernel-debug-vdsoUpgrade kernel-rt-optionalUpgrade kernel-default-baseUpgrade kernel-64kb-optionalUpgrade kernel-rt-extraUpgrade kernel-default-livepatch-develUpgrade kernel-rt_debug-vdsoUpgrade kernel-docs-htmlUpgrade kernel-kvmsmall-vdsoUpgrade dtb-socionextUpgrade dtb-amdUpgrade dtb-marvellUpgrade ocfs2-kmp-64kbUpgrade reiserfs-kmp-64kbUpgrade kernel-preempt-develUpgrade kernel-syms-rtUpgrade gfs2-kmp-64kbUpgrade dtb-alteraUpgrade dtb-renesasUpgrade kernel-sourceUpgrade kernel-default-livepatchUpgrade cluster-md-kmp-azureUpgrade kernel-64kb-livepatch-develUpgrade dtb-caviumUpgrade dtb-amlogicUpgrade dtb-appleUpgrade kernel-obs-buildUpgrade reiserfs-kmp-rtUpgrade gfs2-kmp-rtUpgrade kernel-rt-vdsoUpgrade kernel-rt_debug-develUpgrade kernel-azure-optionalUpgrade kernel-azure-extraUpgrade dtb-lgUpgrade dtb-freescaleUpgrade kernel-source-azureUpgrade kernel-default-develUpgrade kernel-rt-livepatch-develUpgrade kselftests-kmp-azureUpgrade kernel-source-rtUpgrade kernel-rt_debug | Aug 9, 2024 | May 24, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | May 24, 2024 |
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