In the Linux kernel, the following vulnerability has been resolved:
net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads
Fix niu_try_msix() to not cause a fatal trap on sparc systems.
Set PCI_DEV_FLAGS_MSIX_TOUCH_ENTRY_DATA_FIRST on the struct pci_dev to work around a bug in the hardware or firmware.
For each vector entry in the msix table, niu chips will cause a fatal trap if any registers in that entry are read before that entries' ENTRY_DATA register is written to. Testing indicates writes to other registers are not sufficient to prevent the fatal trap, however the value does not appear to matter. This only needs to happen once after power up, so simply rebooting into a kernel lacking this fix will NOT cause the trap.
NON-RESUMABLE ERROR: Reporting on cpu 64 NON-RESUMABLE ERROR: TPC [0x00000000005f6900] <msix_prepare_msi_desc+0x90/0xa0> NON-RESUMABLE ERROR: RAW [4010000000000016:00000e37f93e32ff:0000000202000080:ffffffffffffffff NON-RESUMABLE ERROR: 0000000800000000:0000000000000000:0000000000000000:0000000000000000] NON-RESUMABLE ERROR: handle [0x4010000000000016] stick [0x00000e37f93e32ff] NON-RESUMABLE ERROR: type [precise nonresumable] NON-RESUMABLE ERROR: attrs [0x02000080] < ASI sp-faulted priv > NON-RESUMABLE ERROR: raddr [0xffffffffffffffff] NON-RESUMABLE ERROR: insn effective address [0x000000c50020000c] NON-RESUMABLE ERROR: size [0x8] NON-RESUMABLE ERROR: asi [0x00] CPU: 64 UID: 0 PID: 745 Comm: kworker/64:1 Not tainted 6.11.5 #63 Workqueue: events work_for_cpu_fn TSTATE: 0000000011001602 TPC: 00000000005f6900 TNPC: 00000000005f6904 Y: 00000000 Not tainted TPC: <msix_prepare_msi_desc+0x90/0xa0> g0: 00000000000002e9 g1: 000000000000000c g2: 000000c50020000c g3: 0000000000000100 g4: ffff8000470307c0 g5: ffff800fec5be000 g6: ffff800047a08000 g7: 0000000000000000 o0: ffff800014feb000 o1: ffff800047a0b620 o2: 0000000000000011 o3: ffff800047a0b620 o4: 0000000000000080 o5: 0000000000000011 sp: ffff800047a0ad51 ret_pc: 00000000005f7128 RPC: <__pci_enable_msix_range+0x3cc/0x460> l0: 000000000000000d l1: 000000000000c01f l2: ffff800014feb0a8 l3: 0000000000000020 l4: 000000000000c000 l5: 0000000000000001 l6: 0000000020000000 l7: ffff800047a0b734 i0: ffff800014feb000 i1: ffff800047a0b730 i2: 0000000000000001 i3: 000000000000000d i4: 0000000000000000 i5: 0000000000000000 i6: ffff800047a0ae81 i7: 00000000101888b0 I7: <niu_try_msix.constprop.0+0xc0/0x130 [niu]> Call Trace: [<00000000101888b0>] niu_try_msix.constprop.0+0xc0/0x130 [niu] [<000000001018f840>] niu_get_invariants+0x183c/0x207c [niu] [<00000000101902fc>] niu_pci_init_one+0x27c/0x2fc [niu] [<00000000005ef3e4>] local_pci_probe+0x28/0x74 [<0000000000469240>] work_for_cpu_fn+0x8/0x1c [<000000000046b008>] process_scheduled_works+0x144/0x210 [<000000000046b518>] worker_thread+0x13c/0x1c0 [<00000000004710e0>] kthread+0xb8/0xc8 [<00000000004060c8>] ret_from_fork+0x1c/0x2c [<0000000000000000>] 0x0 Kernel panic - not syncing: Non-resumable 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 |
|---|---|---|---|---|
| Debian | — | Upgrade linuxNo solution exists | May 15, 2025 | May 8, 2025 |
| Suse | — | Upgrade kernel-debugUpgrade kernel-source-vanillaUpgrade dtb-lgUpgrade reiserfs-kmp-defaultUpgrade kernel-devel-rtUpgrade dtb-caviumUpgrade kernel-debug-develUpgrade dtb-allwinnerUpgrade dtb-qcomUpgrade dtb-mediatekUpgrade kernel-azureUpgrade ocfs2-kmp-defaultUpgrade dtb-alteraUpgrade kernel-develUpgrade dlm-kmp-rtUpgrade kernel-symsUpgrade kernel-sourceUpgrade kernel-default-base-rebuildUpgrade dlm-kmp-64kbUpgrade reiserfs-kmp-azureUpgrade kernel-rt-develUpgrade kernel-rt_debug-develUpgrade dtb-hisiliconUpgrade gfs2-kmp-azureUpgrade gfs2-kmp-defaultUpgrade ocfs2-kmp-azureUpgrade dtb-sprdUpgrade kernel-default-optionalUpgrade kernel-default-livepatch-develUpgrade kselftests-kmp-64kbUpgrade cluster-md-kmp-64kbUpgrade dtb-exynosUpgrade dtb-renesasUpgrade dtb-xilinxUpgrade kernel-default-baseUpgrade kernel-64kb-develUpgrade cluster-md-kmp-rtUpgrade kernel-debug-vdsoUpgrade kernel-source-azureUpgrade kernel-64kb-extraUpgrade kernel-64kb-optionalUpgrade dtb-armUpgrade dtb-rockchipUpgrade kernel-default-vdsoUpgrade kernel-64kbUpgrade kernel-azure-optionalUpgrade kernel-rt-vdsoUpgrade kernel-kvmsmall-develUpgrade dtb-socionextUpgrade kernel-obs-buildUpgrade kernel-rt_debug-vdsoUpgrade dtb-freescaleUpgrade dtb-amdUpgrade cluster-md-kmp-defaultUpgrade kernel-devel-azureUpgrade kernel-kvmsmallUpgrade dtb-appleUpgrade dtb-amlogicUpgrade dtb-nvidiaUpgrade kernel-zfcpdumpUpgrade kernel-source-rtUpgrade kernel-rtUpgrade kernel-kvmsmall-vdsoUpgrade kernel-default-manUpgrade kernel-default-livepatchUpgrade cluster-md-kmp-azureUpgrade ocfs2-kmp-64kbUpgrade kernel-docs-htmlUpgrade dlm-kmp-defaultUpgrade kernel-azure-vdsoUpgrade dtb-apmUpgrade dlm-kmp-azureUpgrade kselftests-kmp-azureUpgrade kernel-rt_debugUpgrade kernel-rt-optionalUpgrade kernel-default-extraUpgrade reiserfs-kmp-64kbUpgrade ocfs2-kmp-rtUpgrade kselftests-kmp-defaultUpgrade kernel-syms-azureUpgrade kernel-obs-qaUpgrade kernel-macrosUpgrade reiserfs-kmp-rtUpgrade gfs2-kmp-rtUpgrade dtb-amazonUpgrade kernel-defaultUpgrade kernel-azure-develUpgrade kernel-rt-livepatch-develUpgrade kselftests-kmp-rtUpgrade kernel-docsUpgrade gfs2-kmp-64kbUpgrade dtb-marvellUpgrade kernel-default-develUpgrade kernel-syms-rtUpgrade kernel-rt-extraUpgrade kernel-azure-extraUpgrade dtb-broadcom | Dec 5, 2025 | Jun 12, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-22-genericUpgrade linux-image-oracleUpgrade linux-image-realtimeUpgrade linux-image-6.14.0-1004-realtimeUpgrade linux-image-6.14.0-1007-azureUpgrade linux-image-azure-fdeUpgrade linux-image-6.14.0-1007-azure-fdeUpgrade linux-image-gcpUpgrade linux-image-6.14.0-1007-oracle-64kUpgrade linux-image-awsUpgrade linux-image-6.14.0-1007-oracleUpgrade linux-image-6.14.0-1007-raspiUpgrade linux-image-aws-64kUpgrade linux-image-oracle-64kUpgrade linux-image-6.14.0-22-generic-64kUpgrade linux-image-6.14.0-1008-gcp-64kUpgrade linux-image-genericUpgrade linux-image-azureUpgrade linux-image-generic-64kUpgrade linux-image-raspiUpgrade linux-image-6.14.0-1007-awsUpgrade linux-image-6.14.0-1007-aws-64kUpgrade linux-image-6.14.0-1008-gcpUpgrade linux-image-gcp-64k | Jun 26, 2025 | May 8, 2025 |
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