mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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29 lines
3.3 KiB
JSON
29 lines
3.3 KiB
JSON
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{
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"id": "CVE-2022-48811",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-07-16T12:15:05.367",
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"lastModified": "2024-07-16T13:43:58.773",
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"vulnStatus": "Awaiting Analysis",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: don't release napi in __ibmvnic_open()\n\nIf __ibmvnic_open() encounters an error such as when setting link state,\nit calls release_resources() which frees the napi structures needlessly.\nInstead, have __ibmvnic_open() only clean up the work it did so far (i.e.\ndisable napi and irqs) and leave the rest to the callers.\n\nIf caller of __ibmvnic_open() is ibmvnic_open(), it should release the\nresources immediately. If the caller is do_reset() or do_hard_reset(),\nthey will release the resources on the next reset.\n\nThis fixes following crash that occurred when running the drmgr command\nseveral times to add/remove a vnic interface:\n\n\t[102056] ibmvnic 30000003 env3: Disabling rx_scrq[6] irq\n\t[102056] ibmvnic 30000003 env3: Disabling rx_scrq[7] irq\n\t[102056] ibmvnic 30000003 env3: Replenished 8 pools\n\tKernel attempted to read user page (10) - exploit attempt? (uid: 0)\n\tBUG: Kernel NULL pointer dereference on read at 0x00000010\n\tFaulting instruction address: 0xc000000000a3c840\n\tOops: Kernel access of bad area, sig: 11 [#1]\n\tLE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\n\t...\n\tCPU: 9 PID: 102056 Comm: kworker/9:2 Kdump: loaded Not tainted 5.16.0-rc5-autotest-g6441998e2e37 #1\n\tWorkqueue: events_long __ibmvnic_reset [ibmvnic]\n\tNIP: c000000000a3c840 LR: c0080000029b5378 CTR: c000000000a3c820\n\tREGS: c0000000548e37e0 TRAP: 0300 Not tainted (5.16.0-rc5-autotest-g6441998e2e37)\n\tMSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 28248484 XER: 00000004\n\tCFAR: c0080000029bdd24 DAR: 0000000000000010 DSISR: 40000000 IRQMASK: 0\n\tGPR00: c0080000029b55d0 c0000000548e3a80 c0000000028f0200 0000000000000000\n\t...\n\tNIP [c000000000a3c840] napi_enable+0x20/0xc0\n\tLR [c0080000029b5378] __ibmvnic_open+0xf0/0x430 [ibmvnic]\n\tCall Trace:\n\t[c0000000548e3a80] [0000000000000006] 0x6 (unreliable)\n\t[c0000000548e3ab0] [c0080000029b55d0] __ibmvnic_open+0x348/0x430 [ibmvnic]\n\t[c0000000548e3b40] [c0080000029bcc28] __ibmvnic_reset+0x500/0xdf0 [ibmvnic]\n\t[c0000000548e3c60] [c000000000176228] process_one_work+0x288/0x570\n\t[c0000000548e3d00] [c000000000176588] worker_thread+0x78/0x660\n\t[c0000000548e3da0] [c0000000001822f0] kthread+0x1c0/0x1d0\n\t[c0000000548e3e10] [c00000000000cf64] ret_from_kernel_thread+0x5c/0x64\n\tInstruction dump:\n\t7d2948f8 792307e0 4e800020 60000000 3c4c01eb 384239e0 f821ffd1 39430010\n\t38a0fff6 e92d1100 f9210028 39200000 <e9030010> f9010020 60420000 e9210020\n\t---[ end trace 5f8033b08fd27706 ]---"
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/61772b0908c640d0309c40f7d41d062ca4e979fa",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/960dfaf3b578dd23af012590e809ae2d58ba1827",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/e08cb9056fb2564d1f6bad789bdf79ab09bf2f81",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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}
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