| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: fix oops caused by irqsoff latency tracer\n\nThe trace_hardirqs_{on,off}() require the caller to setup frame pointer\nproperly. This because these two functions use macro 'CALLER_ADDR1' (aka.\n__builtin_return_address(1)) to acquire caller info. If the $fp is used\nfor other purpose, the code generated this macro (as below) could trigger\nmemory access fault.\n\n 0xffffffff8011510e <+80>: ld a1,-16(s0)\n 0xffffffff80115112 <+84>: ld s2,-8(a1) # <-- paging fault here\n\nThe oops message during booting if compiled with 'irqoff' tracer enabled:\n[ 0.039615][ T0] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8\n[ 0.041925][ T0] Oops [#1]\n[ 0.042063][ T0] Modules linked in:\n[ 0.042864][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc1-00233-g9a20c48d1ed2 #29\n[ 0.043568][ T0] Hardware name: riscv-virtio,qemu (DT)\n[ 0.044343][ T0] epc : trace_hardirqs_on+0x56/0xe2\n[ 0.044601][ T0] ra : restore_all+0x12/0x6e\n[ 0.044721][ T0] epc : ffffffff80126a5c ra : ffffffff80003b94 sp : ffffffff81403db0\n[ 0.044801][ T0] gp : ffffffff8163acd8 tp : ffffffff81414880 t0 : 0000000000000020\n[ 0.044882][ T0] t1 : 0098968000000000 t2 : 0000000000000000 s0 : ffffffff81403de0\n[ 0.044967][ T0] s1 : 0000000000000000 a0 : 0000000000000001 a1 : 0000000000000100\n[ 0.045046][ T0] a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000\n[ 0.045124][ T0] a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000054494d45\n[ 0.045210][ T0] s2 : ffffffff80003b94 s3 : ffffffff81a8f1b0 s4 : ffffffff80e27b50\n[ 0.045289][ T0] s5 : ffffffff81414880 s6 : ffffffff8160fa00 s7 : 00000000800120e8\n[ 0.045389][ T0] s8 : 0000000080013100 s9 : 000000000000007f s10: 0000000000000000\n[ 0.045474][ T0] s11: 0000000000000000 t3 : 7fffffffffffffff t4 : 0000000000000000\n[ 0.045548][ T0] t5 : 0000000000000000 t6 : ffffffff814aa368\n[ 0.045620][ T0] status: 0000000200000100 badaddr: 00000000000000f8 cause: 000000000000000d\n[ 0.046402][ T0] [<ffffffff80003b94>] restore_all+0x12/0x6e\n\nThis because the $fp(aka. $s0) register is not used as frame pointer in the\nassembly entry code.\n\n\tresume_kernel:\n\t\tREG_L s0, TASK_TI_PREEMPT_COUNT(tp)\n\t\tbnez s0, restore_all\n\t\tREG_L s0, TASK_TI_FLAGS(tp)\n andi s0, s0, _TIF_NEED_RESCHED\n beqz s0, restore_all\n call preempt_schedule_irq\n j restore_all\n\nTo fix above issue, here we add one extra level wrapper for function\ntrace_hardirqs_{on,off}() so they can be safely called by low level entry\ncode." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/riscv/kernel/Makefile", |
| "arch/riscv/kernel/entry.S", |
| "arch/riscv/kernel/trace_irq.c", |
| "arch/riscv/kernel/trace_irq.h" |
| ], |
| "versions": [ |
| { |
| "version": "3c46979829824da5af8766d89fa877976bdae884", |
| "lessThan": "9e2dbc31e367d08ee299a0d8aeb498cb2e12a1c3", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3c46979829824da5af8766d89fa877976bdae884", |
| "lessThan": "1851b9a467065b18ec2cba156eea345206df1c8f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3c46979829824da5af8766d89fa877976bdae884", |
| "lessThan": "b5e180490db4af8c0f80c4b65ee482d333d0e8ee", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3c46979829824da5af8766d89fa877976bdae884", |
| "lessThan": "22e2100b1b07d6f5acc71cc1acb53f680c677d77", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/riscv/kernel/Makefile", |
| "arch/riscv/kernel/entry.S", |
| "arch/riscv/kernel/trace_irq.c", |
| "arch/riscv/kernel/trace_irq.h" |
| ], |
| "versions": [ |
| { |
| "version": "5.9", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.9", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.103", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.26", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.16.12", |
| "lessThanOrEqual": "5.16.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.17", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.9", |
| "versionEndExcluding": "5.10.103" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.9", |
| "versionEndExcluding": "5.15.26" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.9", |
| "versionEndExcluding": "5.16.12" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.9", |
| "versionEndExcluding": "5.17" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/9e2dbc31e367d08ee299a0d8aeb498cb2e12a1c3" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1851b9a467065b18ec2cba156eea345206df1c8f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b5e180490db4af8c0f80c4b65ee482d333d0e8ee" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/22e2100b1b07d6f5acc71cc1acb53f680c677d77" |
| } |
| ], |
| "title": "riscv: fix oops caused by irqsoff latency tracer", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2022-48922", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
