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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | May 15, 2025 | May 8, 2025 |
| Suse | — | Upgrade dtb-amdUpgrade kernel-docsUpgrade dtb-marvellUpgrade gfs2-kmp-64kbUpgrade cluster-md-kmp-defaultUpgrade dtb-freescaleUpgrade kernel-obs-qaUpgrade kernel-rt-livepatch-develUpgrade dtb-nvidiaUpgrade kernel-rtUpgrade kernel-rt_debug-vdsoUpgrade kernel-zfcpdumpUpgrade kernel-devel-azureUpgrade dtb-amazonUpgrade dlm-kmp-defaultUpgrade dtb-apmUpgrade kernel-default-develUpgrade kernel-rt-extraUpgrade kernel-azure-extraUpgrade kernel-rt-vdsoUpgrade gfs2-kmp-rtUpgrade dtb-broadcomUpgrade kernel-obs-buildUpgrade kernel-azure-vdsoUpgrade reiserfs-kmp-rtUpgrade dlm-kmp-azureUpgrade kernel-macrosUpgrade dtb-appleUpgrade kernel-azure-develUpgrade kernel-defaultUpgrade kernel-kvmsmall-develUpgrade kernel-syms-rtUpgrade kernel-docs-htmlUpgrade kselftests-kmp-rtUpgrade kernel-kvmsmallUpgrade kselftests-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade dtb-amlogicUpgrade reiserfs-kmp-64kbUpgrade kernel-default-livepatchUpgrade kernel-kvmsmall-vdsoUpgrade ocfs2-kmp-64kbUpgrade kernel-default-manUpgrade kernel-default-extraUpgrade kernel-source-rtUpgrade cluster-md-kmp-azureUpgrade dtb-socionextUpgrade kernel-rt-optionalUpgrade kernel-rt_debugUpgrade kselftests-kmp-azureUpgrade kernel-syms-azureUpgrade dtb-allwinnerUpgrade dlm-kmp-64kbUpgrade dtb-renesasUpgrade dtb-lgUpgrade kernel-source-azureUpgrade kernel-default-baseUpgrade kernel-debug-vdsoUpgrade kernel-64kb-optionalUpgrade kernel-64kb-develUpgrade kernel-azure-optionalUpgrade dtb-qcomUpgrade kernel-source-vanillaUpgrade dtb-mediatekUpgrade kernel-debug-develUpgrade dtb-caviumUpgrade kernel-symsUpgrade dlm-kmp-rtUpgrade reiserfs-kmp-azureUpgrade kernel-develUpgrade kernel-default-livepatch-develUpgrade kernel-64kb-extraUpgrade dtb-exynosUpgrade dtb-alteraUpgrade dtb-xilinxUpgrade kernel-default-vdsoUpgrade dtb-armUpgrade cluster-md-kmp-rtUpgrade kselftests-kmp-64kbUpgrade gfs2-kmp-defaultUpgrade dtb-sprdUpgrade cluster-md-kmp-64kbUpgrade kernel-default-optionalUpgrade ocfs2-kmp-azureUpgrade kernel-debugUpgrade dtb-hisiliconUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-defaultUpgrade kernel-rt_debug-develUpgrade kernel-azureUpgrade gfs2-kmp-azureUpgrade kernel-devel-rtUpgrade kernel-rt-develUpgrade kernel-64kbUpgrade kernel-default-base-rebuildUpgrade dtb-rockchipUpgrade kernel-source | Dec 5, 2025 | Jun 12, 2025 |
| Ubuntu | — | Upgrade linux-image-gcp-64kUpgrade linux-image-oracle-64kUpgrade linux-image-6.14.0-1008-gcp-64kUpgrade linux-image-genericUpgrade linux-image-6.14.0-1008-gcpUpgrade linux-image-6.14.0-22-generic-64kUpgrade linux-image-6.14.0-1007-aws-64kUpgrade linux-image-raspiUpgrade linux-image-aws-64kUpgrade linux-image-6.14.0-1007-awsUpgrade linux-image-generic-64kUpgrade linux-image-azureUpgrade linux-image-6.14.0-1007-oracleUpgrade linux-image-oracleUpgrade linux-image-6.14.0-1007-oracle-64kUpgrade linux-image-gcpUpgrade linux-image-6.14.0-1007-raspiUpgrade linux-image-6.14.0-22-genericUpgrade linux-image-azure-fdeUpgrade linux-image-awsUpgrade linux-image-6.14.0-1007-azure-fdeUpgrade linux-image-6.14.0-1007-azureUpgrade linux-image-6.14.0-1004-realtimeUpgrade linux-image-realtime | Jun 26, 2025 | May 8, 2025 |
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