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In the Linux kernel, the following vulnerability has been resolved:
RDMA/cma: Fix kmemleak in rdma_core observed during blktests nvme/rdma use siw
When running blktests nvme/rdma, the following kmemleak issue will appear.
kmemleak: Kernel memory leak detector initialized (mempool available:36041) kmemleak: Automatic memory scanning thread started kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 8 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 17 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 4 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
unreferenced object 0xffff88855da53400 (size 192): comm "rdma", pid 10630, jiffies 4296575922 hex dump (first 32 bytes): 37 00 00 00 00 00 00 00 c0 ff ff ff 1f 00 00 00 7............... 10 34 a5 5d 85 88 ff ff 10 34 a5 5d 85 88 ff ff .4.].....4.].... backtrace (crc 47f66721): [<ffffffff911251bd>] kmalloc_trace+0x30d/0x3b0 [<ffffffffc2640ff7>] alloc_gid_entry+0x47/0x380 [ib_core] [<ffffffffc2642206>] add_modify_gid+0x166/0x930 [ib_core] [<ffffffffc2643468>] ib_cache_update.part.0+0x6d8/0x910 [ib_core] [<ffffffffc2644e1a>] ib_cache_setup_one+0x24a/0x350 [ib_core] [<ffffffffc263949e>] ib_register_device+0x9e/0x3a0 [ib_core] [<ffffffffc2a3d389>] 0xffffffffc2a3d389 [<ffffffffc2688cd8>] nldev_newlink+0x2b8/0x520 [ib_core] [<ffffffffc2645fe3>] rdma_nl_rcv_msg+0x2c3/0x520 [ib_core] [<ffffffffc264648c>] rdma_nl_rcv_skb.constprop.0.isra.0+0x23c/0x3a0 [ib_core] [<ffffffff9270e7b5>] netlink_unicast+0x445/0x710 [<ffffffff9270f1f1>] netlink_sendmsg+0x761/0xc40 [<ffffffff9249db29>] __sys_sendto+0x3a9/0x420 [<ffffffff9249dc8c>] __x64_sys_sendto+0xdc/0x1b0 [<ffffffff92db0ad3>] do_syscall_64+0x93/0x180 [<ffffffff92e00126>] entry_SYSCALL_64_after_hwframe+0x71/0x79
The root cause: rdma_put_gid_attr is not called when sgid_attr is set to ERR_PTR(-ENODEV).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Suse | — | Upgrade kernel-kvmsmall-livepatch-develUpgrade kernel-zfcpdumpUpgrade gfs2-kmp-64kbUpgrade kernel-azureUpgrade kernel-default-livepatchUpgrade kernel-develUpgrade ocfs2-kmp-azureUpgrade kernel-obs-buildUpgrade kernel-docs-htmlUpgrade kernel-azure-extraUpgrade kernel-azure-livepatch-develUpgrade kernel-debugUpgrade kernel-kvmsmallUpgrade kernel-debug-vdsoUpgrade kernel-default-vdsoUpgrade dtb-allwinnerUpgrade dtb-freescaleUpgrade kernel-source-rtUpgrade dtb-broadcomUpgrade dtb-caviumUpgrade dtb-hisiliconUpgrade dtb-marvellUpgrade kernel-kvmsmall-vdsoUpgrade kselftests-kmp-64kbUpgrade reiserfs-kmp-64kbUpgrade cluster-md-kmp-azureUpgrade kernel-rt-vdsoUpgrade dlm-kmp-64kbUpgrade kernel-rtUpgrade dtb-amazonUpgrade gfs2-kmp-defaultUpgrade kernel-azure-develUpgrade dtb-qcomUpgrade dtb-exynosUpgrade kernel-rt_debug-develUpgrade kernel-sourceUpgrade kernel-devel-azureUpgrade gfs2-kmp-azureUpgrade dtb-appleUpgrade kernel-azure-optionalUpgrade kernel-default-optionalUpgrade gfs2-kmp-rtUpgrade kernel-default-develUpgrade dtb-lgUpgrade cluster-md-kmp-rtUpgrade kernel-source-vanillaUpgrade kernel-source-azureUpgrade kselftests-kmp-azureUpgrade ocfs2-kmp-64kbUpgrade dtb-alteraUpgrade kernel-64kb-optionalUpgrade kernel-debug-develUpgrade kernel-kvmsmall-develUpgrade kernel-rt-optionalUpgrade dtb-amdUpgrade kernel-64kbUpgrade kernel-syms-azureUpgrade ocfs2-kmp-defaultUpgrade kernel-64kb-livepatch-develUpgrade kernel-symsUpgrade dtb-rockchipUpgrade dtb-apmUpgrade kernel-default-livepatch-develUpgrade kernel-azure-vdsoUpgrade dtb-nvidiaUpgrade dtb-mediatekUpgrade cluster-md-kmp-64kbUpgrade kernel-macrosUpgrade reiserfs-kmp-defaultUpgrade kernel-rt-livepatch-develUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-armUpgrade kernel-rt_debug-vdsoUpgrade kernel-obs-qaUpgrade dtb-xilinxUpgrade dtb-amlogicUpgrade kernel-docsUpgrade dlm-kmp-defaultUpgrade dtb-renesasUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-syms-rtUpgrade dlm-kmp-azureUpgrade reiserfs-kmp-azureUpgrade kselftests-kmp-rtUpgrade kernel-64kb-develUpgrade kernel-devel-rtUpgrade dtb-sprdUpgrade kernel-defaultUpgrade kernel-default-base-rebuildUpgrade dtb-socionextUpgrade kernel-debug-livepatch-develUpgrade kernel-rt-develUpgrade kernel-default-extraUpgrade reiserfs-kmp-rtUpgrade kernel-rt-extraUpgrade kselftests-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kernel-rt_debugUpgrade kernel-default-baseUpgrade kernel-64kb-extra | Jul 23, 2024 | Jun 19, 2024 |
| Ubuntu | — | Upgrade linux-image-oracle-64kUpgrade linux-image-kvmUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1011-nvidia-lowlatencyUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-1011-nvidiaUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1012-gcpUpgrade linux-image-azure-fdeUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1011-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1011-nvidia-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-6.8.0-40-lowlatency-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1013-awsUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1010-oracleUpgrade linux-image-awsUpgrade linux-image-ibmUpgrade linux-image-virtualUpgrade linux-image-6.8.0-1010-oemUpgrade linux-image-gcpUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1009-raspiUpgrade linux-image-raspiUpgrade linux-image-azureUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1012-azureUpgrade linux-image-6.8.0-1008-gkeUpgrade linux-image-6.8.0-1010-oracle-64kUpgrade linux-image-6.8.0-40-genericUpgrade linux-image-6.8.0-40-generic-64kUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1012-azure-fdeUpgrade linux-image-oracleUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-gkeUpgrade linux-image-6.8.0-1010-ibmUpgrade linux-image-6.8.0-40-lowlatencyUpgrade linux-image-generic | Aug 9, 2024 | Jun 19, 2024 |
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