cve-2024-56701
Vulnerability from cvelistv5
Published
2024-12-28 09:46
Modified
2025-01-20 06:26
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore The dtl_access_lock needs to be a rw_sempahore, a sleeping lock, because the code calls kmalloc() while holding it, which can sleep: # echo 1 > /proc/powerpc/vcpudispatch_stats BUG: sleeping function called from invalid context at include/linux/sched/mm.h:337 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 199, name: sh preempt_count: 1, expected: 0 3 locks held by sh/199: #0: c00000000a0743f8 (sb_writers#3){.+.+}-{0:0}, at: vfs_write+0x324/0x438 #1: c0000000028c7058 (dtl_enable_mutex){+.+.}-{3:3}, at: vcpudispatch_stats_write+0xd4/0x5f4 #2: c0000000028c70b8 (dtl_access_lock){+.+.}-{2:2}, at: vcpudispatch_stats_write+0x220/0x5f4 CPU: 0 PID: 199 Comm: sh Not tainted 6.10.0-rc4 #152 Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1202 0xf000005 of:SLOF,HEAD hv:linux,kvm pSeries Call Trace: dump_stack_lvl+0x130/0x148 (unreliable) __might_resched+0x174/0x410 kmem_cache_alloc_noprof+0x340/0x3d0 alloc_dtl_buffers+0x124/0x1ac vcpudispatch_stats_write+0x2a8/0x5f4 proc_reg_write+0xf4/0x150 vfs_write+0xfc/0x438 ksys_write+0x88/0x148 system_call_exception+0x1c4/0x5a0 system_call_common+0xf4/0x258
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/525e18f1ba7c2b098c8ba587fb397efb34a6574c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6956c0e7346ce1bbfc726755aa8da10d26e84276
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a246daa26b717e755ccc9061f47f7cd1c0b358dd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b125d0cf1adde7b2b47d7337fed7e9133eea3463
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cadae3a45d23aa4f6485938a67cbc47aaaa25e38
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f6ec133668757f84e5143f1eb141fd0b83778b9e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fa5b5ea257135e771b489c83a2e93b5935d0108e
Impacted products
Vendor Product Version
Linux Linux Version: 06220d78f24a20549757be1014e57c382406cc92
Version: 06220d78f24a20549757be1014e57c382406cc92
Version: 06220d78f24a20549757be1014e57c382406cc92
Version: 06220d78f24a20549757be1014e57c382406cc92
Version: 06220d78f24a20549757be1014e57c382406cc92
Version: 06220d78f24a20549757be1014e57c382406cc92
Version: 06220d78f24a20549757be1014e57c382406cc92
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   Linux Linux Version: 5.3
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "arch/powerpc/include/asm/dtl.h",
                  "arch/powerpc/platforms/pseries/dtl.c",
                  "arch/powerpc/platforms/pseries/lpar.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "6956c0e7346ce1bbfc726755aa8da10d26e84276",
                     status: "affected",
                     version: "06220d78f24a20549757be1014e57c382406cc92",
                     versionType: "git",
                  },
                  {
                     lessThan: "f6ec133668757f84e5143f1eb141fd0b83778b9e",
                     status: "affected",
                     version: "06220d78f24a20549757be1014e57c382406cc92",
                     versionType: "git",
                  },
                  {
                     lessThan: "fa5b5ea257135e771b489c83a2e93b5935d0108e",
                     status: "affected",
                     version: "06220d78f24a20549757be1014e57c382406cc92",
                     versionType: "git",
                  },
                  {
                     lessThan: "a246daa26b717e755ccc9061f47f7cd1c0b358dd",
                     status: "affected",
                     version: "06220d78f24a20549757be1014e57c382406cc92",
                     versionType: "git",
                  },
                  {
                     lessThan: "b125d0cf1adde7b2b47d7337fed7e9133eea3463",
                     status: "affected",
                     version: "06220d78f24a20549757be1014e57c382406cc92",
                     versionType: "git",
                  },
                  {
                     lessThan: "525e18f1ba7c2b098c8ba587fb397efb34a6574c",
                     status: "affected",
                     version: "06220d78f24a20549757be1014e57c382406cc92",
                     versionType: "git",
                  },
                  {
                     lessThan: "cadae3a45d23aa4f6485938a67cbc47aaaa25e38",
                     status: "affected",
                     version: "06220d78f24a20549757be1014e57c382406cc92",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "arch/powerpc/include/asm/dtl.h",
                  "arch/powerpc/platforms/pseries/dtl.c",
                  "arch/powerpc/platforms/pseries/lpar.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "5.3",
                  },
                  {
                     lessThan: "5.3",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "5.10.*",
                     status: "unaffected",
                     version: "5.10.231",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "5.15.*",
                     status: "unaffected",
                     version: "5.15.174",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.1.*",
                     status: "unaffected",
                     version: "6.1.120",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.6.*",
                     status: "unaffected",
                     version: "6.6.64",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.11.*",
                     status: "unaffected",
                     version: "6.11.11",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.12.*",
                     status: "unaffected",
                     version: "6.12.2",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.13",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries: Fix dtl_access_lock to be a rw_semaphore\n\nThe dtl_access_lock needs to be a rw_sempahore, a sleeping lock, because\nthe code calls kmalloc() while holding it, which can sleep:\n\n  # echo 1 > /proc/powerpc/vcpudispatch_stats\n  BUG: sleeping function called from invalid context at include/linux/sched/mm.h:337\n  in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 199, name: sh\n  preempt_count: 1, expected: 0\n  3 locks held by sh/199:\n   #0: c00000000a0743f8 (sb_writers#3){.+.+}-{0:0}, at: vfs_write+0x324/0x438\n   #1: c0000000028c7058 (dtl_enable_mutex){+.+.}-{3:3}, at: vcpudispatch_stats_write+0xd4/0x5f4\n   #2: c0000000028c70b8 (dtl_access_lock){+.+.}-{2:2}, at: vcpudispatch_stats_write+0x220/0x5f4\n  CPU: 0 PID: 199 Comm: sh Not tainted 6.10.0-rc4 #152\n  Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1202 0xf000005 of:SLOF,HEAD hv:linux,kvm pSeries\n  Call Trace:\n    dump_stack_lvl+0x130/0x148 (unreliable)\n    __might_resched+0x174/0x410\n    kmem_cache_alloc_noprof+0x340/0x3d0\n    alloc_dtl_buffers+0x124/0x1ac\n    vcpudispatch_stats_write+0x2a8/0x5f4\n    proc_reg_write+0xf4/0x150\n    vfs_write+0xfc/0x438\n    ksys_write+0x88/0x148\n    system_call_exception+0x1c4/0x5a0\n    system_call_common+0xf4/0x258",
            },
         ],
         providerMetadata: {
            dateUpdated: "2025-01-20T06:26:29.247Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/6956c0e7346ce1bbfc726755aa8da10d26e84276",
            },
            {
               url: "https://git.kernel.org/stable/c/f6ec133668757f84e5143f1eb141fd0b83778b9e",
            },
            {
               url: "https://git.kernel.org/stable/c/fa5b5ea257135e771b489c83a2e93b5935d0108e",
            },
            {
               url: "https://git.kernel.org/stable/c/a246daa26b717e755ccc9061f47f7cd1c0b358dd",
            },
            {
               url: "https://git.kernel.org/stable/c/b125d0cf1adde7b2b47d7337fed7e9133eea3463",
            },
            {
               url: "https://git.kernel.org/stable/c/525e18f1ba7c2b098c8ba587fb397efb34a6574c",
            },
            {
               url: "https://git.kernel.org/stable/c/cadae3a45d23aa4f6485938a67cbc47aaaa25e38",
            },
         ],
         title: "powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-56701",
      datePublished: "2024-12-28T09:46:23.516Z",
      dateReserved: "2024-12-27T15:00:39.856Z",
      dateUpdated: "2025-01-20T06:26:29.247Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-56701\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-28T10:15:17.620\",\"lastModified\":\"2024-12-28T10:15:17.620\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npowerpc/pseries: Fix dtl_access_lock to be a rw_semaphore\\n\\nThe dtl_access_lock needs to be a rw_sempahore, a sleeping lock, because\\nthe code calls kmalloc() while holding it, which can sleep:\\n\\n  # echo 1 > /proc/powerpc/vcpudispatch_stats\\n  BUG: sleeping function called from invalid context at include/linux/sched/mm.h:337\\n  in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 199, name: sh\\n  preempt_count: 1, expected: 0\\n  3 locks held by sh/199:\\n   #0: c00000000a0743f8 (sb_writers#3){.+.+}-{0:0}, at: vfs_write+0x324/0x438\\n   #1: c0000000028c7058 (dtl_enable_mutex){+.+.}-{3:3}, at: vcpudispatch_stats_write+0xd4/0x5f4\\n   #2: c0000000028c70b8 (dtl_access_lock){+.+.}-{2:2}, at: vcpudispatch_stats_write+0x220/0x5f4\\n  CPU: 0 PID: 199 Comm: sh Not tainted 6.10.0-rc4 #152\\n  Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1202 0xf000005 of:SLOF,HEAD hv:linux,kvm pSeries\\n  Call Trace:\\n    dump_stack_lvl+0x130/0x148 (unreliable)\\n    __might_resched+0x174/0x410\\n    kmem_cache_alloc_noprof+0x340/0x3d0\\n    alloc_dtl_buffers+0x124/0x1ac\\n    vcpudispatch_stats_write+0x2a8/0x5f4\\n    proc_reg_write+0xf4/0x150\\n    vfs_write+0xfc/0x438\\n    ksys_write+0x88/0x148\\n    system_call_exception+0x1c4/0x5a0\\n    system_call_common+0xf4/0x258\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/525e18f1ba7c2b098c8ba587fb397efb34a6574c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6956c0e7346ce1bbfc726755aa8da10d26e84276\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a246daa26b717e755ccc9061f47f7cd1c0b358dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b125d0cf1adde7b2b47d7337fed7e9133eea3463\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cadae3a45d23aa4f6485938a67cbc47aaaa25e38\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f6ec133668757f84e5143f1eb141fd0b83778b9e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fa5b5ea257135e771b489c83a2e93b5935d0108e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
   },
}


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