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
| 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-default-optionalUpgrade ocfs2-kmp-defaultUpgrade ocfs2-kmp-azureUpgrade dtb-exynosUpgrade cluster-md-kmp-rtUpgrade kernel-64kb-develUpgrade kernel-64kb-extraUpgrade dtb-mediatekUpgrade dlm-kmp-rtUpgrade kernel-syms-azureUpgrade kernel-kvmsmallUpgrade kernel-debugUpgrade kselftests-kmp-defaultUpgrade cluster-md-kmp-defaultUpgrade kernel-docsUpgrade kernel-develUpgrade dtb-nvidiaUpgrade kernel-preemptUpgrade ocfs2-kmp-rtUpgrade kernel-devel-rtUpgrade kernel-devel-azureUpgrade kernel-default-extraUpgrade kernel-defaultUpgrade kernel-default-base-rebuildUpgrade cluster-md-kmp-64kbUpgrade dtb-qcomUpgrade kernel-symsUpgrade dtb-armUpgrade kernel-default-vdsoUpgrade kernel-obs-qaUpgrade kselftests-kmp-rtUpgrade dtb-apmUpgrade dtb-xilinxUpgrade dlm-kmp-azureUpgrade kernel-azure-livepatch-develUpgrade dtb-sprdUpgrade kernel-macrosUpgrade kernel-azure-develUpgrade kernel-rtUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rt-develUpgrade reiserfs-kmp-azureUpgrade dtb-allwinnerUpgrade kernel-rt-livepatchUpgrade dtb-rockchipUpgrade dlm-kmp-defaultUpgrade dtb-freescaleUpgrade dtb-renesasUpgrade gfs2-kmp-azureUpgrade reiserfs-kmp-defaultUpgrade kernel-rt-extraUpgrade kernel-default-livepatchUpgrade dtb-amazonUpgrade dlm-kmp-64kbUpgrade kernel-default-baseUpgrade kernel-rt-optionalUpgrade kernel-debug-vdsoUpgrade dtb-caviumUpgrade cluster-md-kmp-azureUpgrade reiserfs-kmp-rtUpgrade kernel-source-azureUpgrade kernel-rt-vdsoUpgrade kernel-rt_debug-develUpgrade kernel-azure-optionalUpgrade kernel-default-develUpgrade dtb-lgUpgrade gfs2-kmp-defaultUpgrade kernel-azure-extraUpgrade kernel-rt-livepatch-develUpgrade reiserfs-kmp-64kbUpgrade kernel-syms-rtUpgrade gfs2-kmp-64kbUpgrade kernel-sourceUpgrade kernel-preempt-develUpgrade dtb-broadcomUpgrade kernel-debug-develUpgrade dtb-alteraUpgrade kernel-azureUpgrade kernel-64kb-livepatch-develUpgrade dtb-socionextUpgrade kernel-64kb-optionalUpgrade dtb-marvellUpgrade kernel-source-vanillaUpgrade kernel-rt_debug-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade kernel-docs-htmlUpgrade kernel-default-livepatch-develUpgrade kernel-rt_debugUpgrade kernel-zfcpdumpUpgrade kernel-debug-livepatch-develUpgrade kernel-source-rtUpgrade ocfs2-kmp-64kbUpgrade kselftests-kmp-azureUpgrade kernel-kvmsmall-develUpgrade kernel-64kbUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-hisiliconUpgrade kernel-azure-vdsoUpgrade kselftests-kmp-64kbUpgrade gfs2-kmp-rtUpgrade dtb-amlogicUpgrade dtb-appleUpgrade dtb-amdUpgrade kernel-obs-build | 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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