In the Linux kernel, the following vulnerability has been resolved:
RDMA/mlx5: Initialize the ODP xarray when creating an ODP MR
Normally the zero fill would hide the missing initialization, but an errant set to desc_size in reg_create() causes a crash:
BUG: unable to handle page fault for address: 0000000800000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 5 PID: 890 Comm: ib_write_bw Not tainted 5.15.0-rc4+ #47 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:mlx5_ib_dereg_mr+0x14/0x3b0 [mlx5_ib] Code: 48 63 cd 4c 89 f7 48 89 0c 24 e8 37 30 03 e1 48 8b 0c 24 eb a0 90 0f 1f 44 00 00 41 56 41 55 41 54 55 53 48 89 fb 48 83 ec 30 <48> 8b 2f 65 48 8b 04 25 28 00 00 00 48 89 44 24 28 31 c0 8b 87 c8 RSP: 0018:ffff88811afa3a60 EFLAGS: 00010286 RAX: 000000000000001c RBX: 0000000800000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000800000000 RBP: 0000000800000000 R08: 0000000000000000 R09: c0000000fffff7ff R10: ffff88811afa38f8 R11: ffff88811afa38f0 R12: ffffffffa02c7ac0 R13: 0000000000000000 R14: ffff88811afa3cd8 R15: ffff88810772fa00 FS: 00007f47b9080740(0000) GS:ffff88852cd40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000800000000 CR3: 000000010761e003 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mlx5_ib_free_odp_mr+0x95/0xc0 [mlx5_ib] mlx5_ib_dereg_mr+0x128/0x3b0 [mlx5_ib] ib_dereg_mr_user+0x45/0xb0 [ib_core] ? xas_load+0x8/0x80 destroy_hw_idr_uobject+0x1a/0x50 [ib_uverbs] uverbs_destroy_uobject+0x2f/0x150 [ib_uverbs] uobj_destroy+0x3c/0x70 [ib_uverbs] ib_uverbs_cmd_verbs+0x467/0xb00 [ib_uverbs] ? uverbs_finalize_object+0x60/0x60 [ib_uverbs] ? ttwu_queue_wakelist+0xa9/0xe0 ? pty_write+0x85/0x90 ? file_tty_write.isra.33+0x214/0x330 ? process_echoes+0x60/0x60 ib_uverbs_ioctl+0xa7/0x110 [ib_uverbs] __x64_sys_ioctl+0x10d/0x8e0 ? vfs_write+0x17f/0x260 do_syscall_64+0x3c/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae
Add the missing xarray initialization and remove the desc_size set.
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 |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | May 22, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 22, 2024 |
| Suse | — | Upgrade dtb-allwinnerUpgrade dtb-amdUpgrade dtb-nvidiaUpgrade kernel-rt_debug-develUpgrade reiserfs-kmp-rtUpgrade dtb-rockchipUpgrade dtb-sprdUpgrade ocfs2-kmp-defaultUpgrade dtb-xilinxUpgrade gfs2-kmp-azureUpgrade kernel-default-vdsoUpgrade kernel-debug-develUpgrade kernel-develUpgrade kernel-source-vanillaUpgrade dtb-renesasUpgrade kselftests-kmp-azureUpgrade kernel-default-livepatchUpgrade gfs2-kmp-defaultUpgrade kernel-rt-livepatchUpgrade kernel-default-livepatch-develUpgrade dlm-kmp-rtUpgrade kernel-rt-vdsoUpgrade kernel-debug-vdsoUpgrade kernel-rt-optionalUpgrade cluster-md-kmp-rtUpgrade kernel-default-baseUpgrade kernel-source-rtUpgrade kernel-debugUpgrade kernel-rt-extraUpgrade kernel-docs-htmlUpgrade kernel-64kb-extraUpgrade kernel-azureUpgrade kernel-default-optionalUpgrade kernel-rt_debug-livepatch-develUpgrade ocfs2-kmp-64kbUpgrade dtb-caviumUpgrade dtb-alteraUpgrade kernel-kvmsmall-vdsoUpgrade reiserfs-kmp-defaultUpgrade kernel-defaultUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-rtUpgrade dtb-appleUpgrade kernel-azure-optionalUpgrade reiserfs-kmp-64kbUpgrade ocfs2-kmp-azureUpgrade dlm-kmp-64kbUpgrade kernel-obs-buildUpgrade dtb-broadcomUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-64kb-develUpgrade kernel-syms-azureUpgrade kernel-64kb-livepatch-develUpgrade kernel-rtUpgrade dtb-lgUpgrade kernel-default-develUpgrade dtb-qcomUpgrade cluster-md-kmp-defaultUpgrade gfs2-kmp-64kbUpgrade kernel-azure-develUpgrade kernel-64kb-optionalUpgrade kernel-rt-develUpgrade dtb-amlogicUpgrade kernel-default-base-rebuildUpgrade kernel-rt_debugUpgrade dtb-marvellUpgrade kernel-symsUpgrade kernel-macrosUpgrade dtb-exynosUpgrade kernel-64kbUpgrade kernel-sourceUpgrade cluster-md-kmp-azureUpgrade kernel-source-azureUpgrade kernel-rt_debug-vdsoUpgrade kernel-devel-rtUpgrade kselftests-kmp-defaultUpgrade kernel-rt-livepatch-develUpgrade dtb-freescaleUpgrade kernel-docsUpgrade kernel-azure-livepatch-develUpgrade dtb-hisiliconUpgrade kernel-default-extraUpgrade ocfs2-kmp-rtUpgrade kernel-zfcpdumpUpgrade dtb-mediatekUpgrade dtb-amazonUpgrade dtb-armUpgrade dlm-kmp-defaultUpgrade kselftests-kmp-64kbUpgrade dtb-socionextUpgrade kernel-kvmsmallUpgrade gfs2-kmp-rtUpgrade kernel-azure-vdsoUpgrade dlm-kmp-azureUpgrade kernel-devel-azureUpgrade dtb-apmUpgrade kernel-azure-extraUpgrade reiserfs-kmp-azureUpgrade kernel-syms-rtUpgrade kernel-debug-livepatch-develUpgrade kernel-obs-qaUpgrade kernel-kvmsmall-devel | Aug 9, 2024 | May 22, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub