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 perf-debuginfoUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade python-perfUpgrade kernel-develUpgrade bpftool-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade kernelUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.10.75-79.358Upgrade kernel-debuginfoUpgrade python-perf-debuginfo | May 22, 2025 | May 21, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2024 |
| Suse | — | Upgrade kernel-64kb-optionalUpgrade dtb-amdUpgrade ocfs2-kmp-defaultUpgrade kernel-defaultUpgrade ocfs2-kmp-64kbUpgrade kernel-rt_debugUpgrade kernel-azureUpgrade gfs2-kmp-defaultUpgrade kernel-default-baseUpgrade kernel-source-vanillaUpgrade dtb-xilinxUpgrade kernel-develUpgrade reiserfs-kmp-rtUpgrade kernel-azure-optionalUpgrade reiserfs-kmp-64kbUpgrade kernel-source-rtUpgrade kernel-debug-vdsoUpgrade dtb-sprdUpgrade kernel-preempt-develUpgrade kernel-rt_debug-develUpgrade reiserfs-kmp-defaultUpgrade dtb-rockchipUpgrade dtb-renesasUpgrade dtb-mediatekUpgrade dtb-nvidiaUpgrade kernel-rt-livepatchUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-debug-develUpgrade dtb-caviumUpgrade kernel-rt-develUpgrade cluster-md-kmp-rtUpgrade dtb-hisiliconUpgrade kernel-rt-optionalUpgrade dtb-socionextUpgrade gfs2-kmp-azureUpgrade kernel-64kb-extraUpgrade kernel-obs-buildUpgrade dlm-kmp-defaultUpgrade kernel-default-optionalUpgrade kernel-default-livepatch-develUpgrade dtb-appleUpgrade dtb-alteraUpgrade ocfs2-kmp-azureUpgrade kernel-docsUpgrade kselftests-kmp-azureUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-rtUpgrade kernel-azure-extraUpgrade dtb-allwinnerUpgrade kernel-debugUpgrade kernel-rt-extraUpgrade dlm-kmp-rtUpgrade dtb-broadcomUpgrade kernel-64kb-develUpgrade kernel-devel-rtUpgrade kernel-syms-rtUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-obs-qaUpgrade kselftests-kmp-defaultUpgrade cluster-md-kmp-azureUpgrade dtb-amlogicUpgrade kernel-64kbUpgrade dtb-freescaleUpgrade ocfs2-kmp-rtUpgrade kernel-kvmsmall-develUpgrade kernel-devel-azureUpgrade cluster-md-kmp-defaultUpgrade dtb-marvellUpgrade dtb-qcomUpgrade kernel-syms-azureUpgrade kernel-azure-develUpgrade kernel-macrosUpgrade kernel-preemptUpgrade dtb-armUpgrade kernel-64kb-livepatch-develUpgrade kernel-docs-htmlUpgrade dtb-amazonUpgrade kernel-default-develUpgrade kernel-rt-livepatch-develUpgrade gfs2-kmp-64kbUpgrade dtb-lgUpgrade dtb-exynosUpgrade kernel-default-base-rebuildUpgrade kernel-rt-vdsoUpgrade kernel-rt_debug-vdsoUpgrade kernel-symsUpgrade kernel-kvmsmall-vdsoUpgrade kernel-kvmsmallUpgrade kernel-azure-vdsoUpgrade reiserfs-kmp-azureUpgrade kernel-zfcpdumpUpgrade kernel-source-azureUpgrade kernel-sourceUpgrade kernel-default-livepatchUpgrade kselftests-kmp-64kbUpgrade gfs2-kmp-rtUpgrade dlm-kmp-azureUpgrade dlm-kmp-64kbUpgrade kernel-rtUpgrade kernel-default-vdsoUpgrade kernel-default-extraUpgrade kernel-azure-livepatch-develUpgrade kernel-debug-livepatch-develUpgrade dtb-apm | Aug 9, 2024 | May 21, 2024 |
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