CVE-2024-41065 (GCVE-0-2024-41065)

Vulnerability from cvelistv5 – Published: 2024-07-29 14:57 – Updated: 2026-01-05 10:37
VLAI?
Title
powerpc/pseries: Whitelist dtl slub object for copying to userspace
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Whitelist dtl slub object for copying to userspace Reading the dispatch trace log from /sys/kernel/debug/powerpc/dtl/cpu-* results in a BUG() when the config CONFIG_HARDENED_USERCOPY is enabled as shown below. kernel BUG at mm/usercopy.c:102! Oops: Exception in kernel mode, sig: 5 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries Modules linked in: xfs libcrc32c dm_service_time sd_mod t10_pi sg ibmvfc scsi_transport_fc ibmveth pseries_wdt dm_multipath dm_mirror dm_region_hash dm_log dm_mod fuse CPU: 27 PID: 1815 Comm: python3 Not tainted 6.10.0-rc3 #85 Hardware name: IBM,9040-MRX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NM1060_042) hv:phyp pSeries NIP: c0000000005d23d4 LR: c0000000005d23d0 CTR: 00000000006ee6f8 REGS: c000000120c078c0 TRAP: 0700 Not tainted (6.10.0-rc3) MSR: 8000000000029033 <SF,EE,ME,IR,DR,RI,LE> CR: 2828220f XER: 0000000e CFAR: c0000000001fdc80 IRQMASK: 0 [ ... GPRs omitted ... ] NIP [c0000000005d23d4] usercopy_abort+0x78/0xb0 LR [c0000000005d23d0] usercopy_abort+0x74/0xb0 Call Trace: usercopy_abort+0x74/0xb0 (unreliable) __check_heap_object+0xf8/0x120 check_heap_object+0x218/0x240 __check_object_size+0x84/0x1a4 dtl_file_read+0x17c/0x2c4 full_proxy_read+0x8c/0x110 vfs_read+0xdc/0x3a0 ksys_read+0x84/0x144 system_call_exception+0x124/0x330 system_call_vectored_common+0x15c/0x2ec --- interrupt: 3000 at 0x7fff81f3ab34 Commit 6d07d1cd300f ("usercopy: Restrict non-usercopy caches to size 0") requires that only whitelisted areas in slab/slub objects can be copied to userspace when usercopy hardening is enabled using CONFIG_HARDENED_USERCOPY. Dtl contains hypervisor dispatch events which are expected to be read by privileged users. Hence mark this safe for user access. Specify useroffset=0 and usersize=DISPATCH_LOG_BYTES to whitelist the entire object.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: af442a1baa6d00117cc7e7377ce7e6a545268684 , < a7b952941ce07e1e7a2cafd08c64a98e14f553e6 (git)
Affected: af442a1baa6d00117cc7e7377ce7e6a545268684 , < 6b16098148ea58a67430d90e20476be2377c3acd (git)
Affected: af442a1baa6d00117cc7e7377ce7e6a545268684 , < e59822f9d700349cd17968d22c979db23a2d347f (git)
Affected: af442a1baa6d00117cc7e7377ce7e6a545268684 , < 1ee68686d1e2a5da35d5650be0be1ce06fe2ceb2 (git)
Affected: af442a1baa6d00117cc7e7377ce7e6a545268684 , < e512a59b472684d8585125101ab03b86c2c1348a (git)
Affected: af442a1baa6d00117cc7e7377ce7e6a545268684 , < 0f5892212c27be31792ef1daa89c8dac1b3047e4 (git)
Affected: af442a1baa6d00117cc7e7377ce7e6a545268684 , < 1a14150e1656f7a332a943154fc486504db4d586 (git)
Create a notification for this product.
    Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 5.4.281 , ≤ 5.4.* (semver)
Unaffected: 5.10.223 , ≤ 5.10.* (semver)
Unaffected: 5.15.164 , ≤ 5.15.* (semver)
Unaffected: 6.1.101 , ≤ 6.1.* (semver)
Unaffected: 6.6.42 , ≤ 6.6.* (semver)
Unaffected: 6.9.11 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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\"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"af442a1baa6d00117cc7e7377ce7e6a545268684\", \"lessThan\": \"1a14150e1656f7a332a943154fc486504db4d586\", \"versionType\": \"git\"}], \"programFiles\": [\"arch/powerpc/platforms/pseries/setup.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.281\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.223\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.164\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.101\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.42\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"arch/powerpc/platforms/pseries/setup.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a7b952941ce07e1e7a2cafd08c64a98e14f553e6\"}, {\"url\": \"https://git.kernel.org/stable/c/6b16098148ea58a67430d90e20476be2377c3acd\"}, {\"url\": \"https://git.kernel.org/stable/c/e59822f9d700349cd17968d22c979db23a2d347f\"}, {\"url\": \"https://git.kernel.org/stable/c/1ee68686d1e2a5da35d5650be0be1ce06fe2ceb2\"}, {\"url\": \"https://git.kernel.org/stable/c/e512a59b472684d8585125101ab03b86c2c1348a\"}, {\"url\": \"https://git.kernel.org/stable/c/0f5892212c27be31792ef1daa89c8dac1b3047e4\"}, {\"url\": \"https://git.kernel.org/stable/c/1a14150e1656f7a332a943154fc486504db4d586\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\npowerpc/pseries: Whitelist dtl slub object for copying to userspace\\n\\nReading the dispatch trace log from /sys/kernel/debug/powerpc/dtl/cpu-*\\nresults in a BUG() when the config CONFIG_HARDENED_USERCOPY is enabled as\\nshown below.\\n\\n    kernel BUG at mm/usercopy.c:102!\\n    Oops: Exception in kernel mode, sig: 5 [#1]\\n    LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\\n    Modules linked in: xfs libcrc32c dm_service_time sd_mod t10_pi sg ibmvfc\\n    scsi_transport_fc ibmveth pseries_wdt dm_multipath dm_mirror dm_region_hash dm_log dm_mod fuse\\n    CPU: 27 PID: 1815 Comm: python3 Not tainted 6.10.0-rc3 #85\\n    Hardware name: IBM,9040-MRX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NM1060_042) hv:phyp pSeries\\n    NIP:  c0000000005d23d4 LR: c0000000005d23d0 CTR: 00000000006ee6f8\\n    REGS: c000000120c078c0 TRAP: 0700   Not tainted  (6.10.0-rc3)\\n    MSR:  8000000000029033 \u003cSF,EE,ME,IR,DR,RI,LE\u003e  CR: 2828220f  XER: 0000000e\\n    CFAR: c0000000001fdc80 IRQMASK: 0\\n    [ ... GPRs omitted ... ]\\n    NIP [c0000000005d23d4] usercopy_abort+0x78/0xb0\\n    LR [c0000000005d23d0] usercopy_abort+0x74/0xb0\\n    Call Trace:\\n     usercopy_abort+0x74/0xb0 (unreliable)\\n     __check_heap_object+0xf8/0x120\\n     check_heap_object+0x218/0x240\\n     __check_object_size+0x84/0x1a4\\n     dtl_file_read+0x17c/0x2c4\\n     full_proxy_read+0x8c/0x110\\n     vfs_read+0xdc/0x3a0\\n     ksys_read+0x84/0x144\\n     system_call_exception+0x124/0x330\\n     system_call_vectored_common+0x15c/0x2ec\\n    --- interrupt: 3000 at 0x7fff81f3ab34\\n\\nCommit 6d07d1cd300f (\\\"usercopy: Restrict non-usercopy caches to size 0\\\")\\nrequires that only whitelisted areas in slab/slub objects can be copied to\\nuserspace when usercopy hardening is enabled using CONFIG_HARDENED_USERCOPY.\\nDtl contains hypervisor dispatch events which are expected to be read by\\nprivileged users. Hence mark this safe for user access.\\nSpecify useroffset=0 and usersize=DISPATCH_LOG_BYTES to whitelist the\\nentire object.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.281\", \"versionStartIncluding\": \"3.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.223\", \"versionStartIncluding\": \"3.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.164\", \"versionStartIncluding\": \"3.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.101\", \"versionStartIncluding\": \"3.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.42\", \"versionStartIncluding\": \"3.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.11\", \"versionStartIncluding\": \"3.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"3.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:37:31.242Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-41065\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:37:31.242Z\", \"dateReserved\": \"2024-07-12T12:17:45.628Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-29T14:57:27.011Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.