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In the Linux kernel, the following vulnerability has been resolved:
net/smc: fix one NULL pointer dereference in smc_ib_is_sg_need_sync()
BUG: kernel NULL pointer dereference, address: 00000000000002ec PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP PTI CPU: 28 UID: 0 PID: 343 Comm: kworker/28:1 Kdump: loaded Tainted: G OE 6.17.0-rc2+ #9 NONE Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 Workqueue: smc_hs_wq smc_listen_work [smc] RIP: 0010:smc_ib_is_sg_need_sync+0x9e/0xd0 [smc] ... Call Trace: <TASK> smcr_buf_map_link+0x211/0x2a0 [smc] __smc_buf_create+0x522/0x970 [smc] smc_buf_create+0x3a/0x110 [smc] smc_find_rdma_v2_device_serv+0x18f/0x240 [smc] ? smc_vlan_by_tcpsk+0x7e/0xe0 [smc] smc_listen_find_device+0x1dd/0x2b0 [smc] smc_listen_work+0x30f/0x580 [smc] process_one_work+0x18c/0x340 worker_thread+0x242/0x360 kthread+0xe7/0x220 ret_from_fork+0x13a/0x160 ret_from_fork_asm+0x1a/0x30 </TASK>
If the software RoCE device is used, ibdev->dma_device is a null pointer. As a result, the problem occurs. Null pointer detection is added to prevent problems.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Sep 25, 2025 | Sep 25, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 19, 2025 |
| Suse | — | Upgrade kernel-rt-livepatchUpgrade dtb-armUpgrade kernel-source-azureUpgrade dtb-qcomUpgrade kernel-rt-develUpgrade dtb-mediatekUpgrade dtb-rockchipUpgrade gfs2-kmp-azureUpgrade dtb-hisiliconUpgrade dtb-xilinxUpgrade kselftests-kmp-64kbUpgrade gfs2-kmp-defaultUpgrade kernel-develUpgrade kernel-azure-optionalUpgrade kernel-default-vdsoUpgrade kernel-symsUpgrade kernel-rtUpgrade kernel-syms-azureUpgrade cluster-md-kmp-64kbUpgrade kernel-64kb-extraUpgrade cluster-md-kmp-azureUpgrade kernel-sourceUpgrade kernel-64kb-develUpgrade reiserfs-kmp-defaultUpgrade kernel-debugUpgrade kernel-devel-rtUpgrade ocfs2-kmp-defaultUpgrade dtb-exynosUpgrade reiserfs-kmp-azureUpgrade dtb-sprdUpgrade dtb-nvidiaUpgrade dtb-lgUpgrade kernel-default-base-rebuildUpgrade dtb-alteraUpgrade dtb-caviumUpgrade gfs2-kmp-64kbUpgrade kernel-devel-azureUpgrade kernel-kvmsmall-develUpgrade cluster-md-kmp-rtUpgrade dlm-kmp-64kbUpgrade ocfs2-kmp-azureUpgrade kernel-default-optionalUpgrade dtb-allwinnerUpgrade kselftests-kmp-azureUpgrade cluster-md-kmp-defaultUpgrade dtb-socionextUpgrade dtb-apmUpgrade kselftests-kmp-defaultUpgrade kernel-source-vanillaUpgrade dtb-amazonUpgrade kernel-rt_debug-vdsoUpgrade kernel-64kbUpgrade dtb-renesasUpgrade dtb-marvellUpgrade kernel-azure-vdsoUpgrade kernel-obs-qaUpgrade ocfs2-kmp-rtUpgrade ocfs2-kmp-64kbUpgrade kernel-azure-extraUpgrade kernel-azure-develUpgrade kernel-rt_debug-develUpgrade kernel-rt-optionalUpgrade kernel-obs-buildUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-default-livepatchUpgrade kernel-default-livepatch-develUpgrade kernel-zfcpdumpUpgrade kernel-docs-htmlUpgrade dtb-freescaleUpgrade kernel-debug-develUpgrade dtb-amdUpgrade kernel-rt-vdsoUpgrade kernel-rt-extraUpgrade kernel-kvmsmallUpgrade kernel-64kb-optionalUpgrade kernel-azureUpgrade reiserfs-kmp-64kbUpgrade kernel-kvmsmall-vdsoUpgrade dlm-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade kselftests-kmp-rtUpgrade kernel-source-rtUpgrade kernel-macrosUpgrade dtb-broadcomUpgrade dtb-appleUpgrade gfs2-kmp-rtUpgrade dtb-amlogicUpgrade kernel-rt-livepatch-develUpgrade kernel-default-develUpgrade dlm-kmp-rtUpgrade dlm-kmp-azureUpgrade kernel-syms-rtUpgrade kernel-rt_debugUpgrade kernel-default-extraUpgrade kernel-default-baseUpgrade kernel-debug-vdso | Dec 5, 2025 | Oct 15, 2025 |
| Ubuntu | — | Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-kvmUpgrade linux-image-ibmUpgrade linux-image-gkeopUpgrade linux-image-gke-64kUpgrade linux-image-fipsUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-azureUpgrade linux-image-azure-fips-6.8Upgrade linux-image-nvidiaUpgrade linux-image-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-oem-22.04bUpgrade linux-image-fips-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-xilinxUpgrade linux-image-gcpUpgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-ibm-6.8Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-oem-22.04cUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-azure-fipsUpgrade linux-image-gcp-fipsUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-generic-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1050-awsUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-oem-22.04Upgrade linux-image-virtual-6.8Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-genericUpgrade linux-image-lowlatency-64kUpgrade linux-image-raspiUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-aws-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-intel-iotgUpgrade linux-image-aws-fips-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-xilinx-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-realtimeUpgrade linux-image-aws-fipsUpgrade linux-image-virtualUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-oracle-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-awsUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-nvidia-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-gcp-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oracleUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gke-64k-6.8Upgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-gkeUpgrade linux-image-gcp-lts-24.04 | Mar 17, 2026 | Sep 19, 2025 |
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