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