In the Linux kernel, the following vulnerability has been resolved:
RDMA/cma: Fix listener leak in rdma_cma_listen_on_all() failure
If cma_listen_on_all() fails it leaves the per-device ID still on the listen_list but the state is not set to RDMA_CM_ADDR_BOUND.
When the cmid is eventually destroyed cma_cancel_listens() is not called due to the wrong state, however the per-device IDs are still holding the refcount preventing the ID from being destroyed, thus deadlocking:
task:rping state:D stack: 0 pid:19605 ppid: 47036 flags:0x00000084 Call Trace: __schedule+0x29a/0x780 ? free_unref_page_commit+0x9b/0x110 schedule+0x3c/0xa0 schedule_timeout+0x215/0x2b0 ? __flush_work+0x19e/0x1e0 wait_for_completion+0x8d/0xf0 _destroy_id+0x144/0x210 [rdma_cm] ucma_close_id+0x2b/0x40 [rdma_ucm] __destroy_id+0x93/0x2c0 [rdma_ucm] ? __xa_erase+0x4a/0xa0 ucma_destroy_id+0x9a/0x120 [rdma_ucm] ucma_write+0xb8/0x130 [rdma_ucm] vfs_write+0xb4/0x250 ksys_write+0xb5/0xd0 ? syscall_trace_enter.isra.19+0x123/0x190 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9
Ensure that cma_listen_on_all() atomically unwinds its action under the lock during error.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftoolUpgrade perfUpgrade python-perfUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-develUpgrade python-perf-debuginfoUpgrade kernel-livepatch-5.10.75-79.358Upgrade kernel-headersUpgrade kernelUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfo | May 22, 2025 | May 21, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2024 |
| Suse | — | Upgrade kernel-debug-develUpgrade kernel-default-baseUpgrade kernel-source-vanillaUpgrade kernel-devel-rtUpgrade kernel-docsUpgrade kernel-default-livepatch-develUpgrade kernel-obs-buildUpgrade dtb-appleUpgrade dtb-allwinnerUpgrade kernel-rt-develUpgrade dtb-xilinxUpgrade kernel-azureUpgrade ocfs2-kmp-defaultUpgrade kernel-azure-optionalUpgrade dtb-broadcomUpgrade kselftests-kmp-azureUpgrade kernel-rt_debugUpgrade reiserfs-kmp-rtUpgrade kernel-preempt-develUpgrade reiserfs-kmp-64kbUpgrade dlm-kmp-defaultUpgrade dtb-alteraUpgrade kernel-develUpgrade kernel-default-optionalUpgrade dtb-renesasUpgrade dtb-caviumUpgrade kernel-rt-livepatchUpgrade dtb-nvidiaUpgrade ocfs2-kmp-64kbUpgrade dtb-sprdUpgrade cluster-md-kmp-64kbUpgrade kernel-azure-extraUpgrade ocfs2-kmp-azureUpgrade kselftests-kmp-rtUpgrade dtb-amdUpgrade kernel-defaultUpgrade kernel-64kb-optionalUpgrade cluster-md-kmp-rtUpgrade kernel-rt-extraUpgrade dtb-rockchipUpgrade dtb-mediatekUpgrade kernel-64kb-develUpgrade kernel-64kb-extraUpgrade gfs2-kmp-azureUpgrade dlm-kmp-rtUpgrade kernel-rt_debug-develUpgrade kernel-source-rtUpgrade kernel-rt-optionalUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-debug-vdsoUpgrade reiserfs-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade dtb-socionextUpgrade kernel-debugUpgrade dtb-hisiliconUpgrade dtb-apmUpgrade kernel-rtUpgrade kernel-rt-vdsoUpgrade kernel-obs-qaUpgrade dtb-freescaleUpgrade kernel-syms-rtUpgrade ocfs2-kmp-rtUpgrade kernel-debug-livepatch-develUpgrade kernel-devel-azureUpgrade kernel-azure-livepatch-develUpgrade cluster-md-kmp-azureUpgrade dlm-kmp-64kbUpgrade dtb-amazonUpgrade kernel-zfcpdumpUpgrade kernel-kvmsmallUpgrade kselftests-kmp-64kbUpgrade reiserfs-kmp-azureUpgrade kernel-source-azureUpgrade kernel-sourceUpgrade kernel-default-livepatchUpgrade dlm-kmp-azureUpgrade kernel-azure-vdsoUpgrade gfs2-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-docs-htmlUpgrade kernel-64kb-livepatch-develUpgrade kernel-syms-azureUpgrade dtb-qcomUpgrade dtb-marvellUpgrade kernel-default-develUpgrade dtb-exynosUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-symsUpgrade kernel-kvmsmall-vdsoUpgrade dtb-amlogicUpgrade kernel-rt_debug-vdsoUpgrade kernel-default-base-rebuildUpgrade kernel-azure-develUpgrade kernel-preemptUpgrade gfs2-kmp-64kbUpgrade kernel-macrosUpgrade dtb-armUpgrade kernel-64kbUpgrade dtb-lgUpgrade cluster-md-kmp-defaultUpgrade kernel-kvmsmall-develUpgrade kernel-default-vdsoUpgrade kernel-default-extraUpgrade kselftests-kmp-default | Aug 9, 2024 | May 21, 2024 |
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