CVE-2024-38661 (GCVE-0-2024-38661)

Vulnerability from cvelistv5 – Published: 2024-06-25 14:22 – Updated: 2026-01-05 10:36
VLAI?
Title
s390/ap: Fix crash in AP internal function modify_bitmap()
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/ap: Fix crash in AP internal function modify_bitmap() A system crash like this Failing address: 200000cb7df6f000 TEID: 200000cb7df6f403 Fault in home space mode while using kernel ASCE. AS:00000002d71bc007 R3:00000003fe5b8007 S:000000011a446000 P:000000015660c13d Oops: 0038 ilc:3 [#1] PREEMPT SMP Modules linked in: mlx5_ib ... CPU: 8 PID: 7556 Comm: bash Not tainted 6.9.0-rc7 #8 Hardware name: IBM 3931 A01 704 (LPAR) Krnl PSW : 0704e00180000000 0000014b75e7b606 (ap_parse_bitmap_str+0x10e/0x1f8) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3 Krnl GPRS: 0000000000000001 ffffffffffffffc0 0000000000000001 00000048f96b75d3 000000cb00000100 ffffffffffffffff ffffffffffffffff 000000cb7df6fce0 000000cb7df6fce0 00000000ffffffff 000000000000002b 00000048ffffffff 000003ff9b2dbc80 200000cb7df6fcd8 0000014bffffffc0 000000cb7df6fbc8 Krnl Code: 0000014b75e7b5fc: a7840047 brc 8,0000014b75e7b68a 0000014b75e7b600: 18b2 lr %r11,%r2 #0000014b75e7b602: a7f4000a brc 15,0000014b75e7b616 >0000014b75e7b606: eb22d00000e6 laog %r2,%r2,0(%r13) 0000014b75e7b60c: a7680001 lhi %r6,1 0000014b75e7b610: 187b lr %r7,%r11 0000014b75e7b612: 84960021 brxh %r9,%r6,0000014b75e7b654 0000014b75e7b616: 18e9 lr %r14,%r9 Call Trace: [<0000014b75e7b606>] ap_parse_bitmap_str+0x10e/0x1f8 ([<0000014b75e7b5dc>] ap_parse_bitmap_str+0xe4/0x1f8) [<0000014b75e7b758>] apmask_store+0x68/0x140 [<0000014b75679196>] kernfs_fop_write_iter+0x14e/0x1e8 [<0000014b75598524>] vfs_write+0x1b4/0x448 [<0000014b7559894c>] ksys_write+0x74/0x100 [<0000014b7618a440>] __do_syscall+0x268/0x328 [<0000014b761a3558>] system_call+0x70/0x98 INFO: lockdep is turned off. Last Breaking-Event-Address: [<0000014b75e7b636>] ap_parse_bitmap_str+0x13e/0x1f8 Kernel panic - not syncing: Fatal exception: panic_on_oops occured when /sys/bus/ap/a[pq]mask was updated with a relative mask value (like +0x10-0x12,+60,-90) with one of the numeric values exceeding INT_MAX. The fix is simple: use unsigned long values for the internal variables. The correct checks are already in place in the function but a simple int for the internal variables was used with the possibility to overflow.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 , < 2062e3f1f2374102f8014d7ca286b9aa527bd558 (git)
Affected: 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 , < 7c72af16abf2ec7520407098360bbba312289e05 (git)
Affected: 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 , < 7360cef95aa1ea2b5efb7b5e2ed32e941664e1f0 (git)
Affected: 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 , < 67011123453b91ec03671d40712fa213e94a01b9 (git)
Affected: 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 , < 8c5f5911c1b13170d3404eb992c6a0deaa8d81ad (git)
Affected: 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 , < 4c0bfb4e867c1ec6616a5049bd3618021e127056 (git)
Affected: 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 , < 7dabe54a016defe11bb2a278cd9f1ff6db3feba6 (git)
Affected: 3d8f60d38e249f989a7fca9c2370c31c3d5487e1 , < d4f9d5a99a3fd1b1c691b7a1a6f8f3f25f4116c9 (git)
Create a notification for this product.
    Linux Linux Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
Unaffected: 4.19.316 , ≤ 4.19.* (semver)
Unaffected: 5.4.278 , ≤ 5.4.* (semver)
Unaffected: 5.10.219 , ≤ 5.10.* (semver)
Unaffected: 5.15.161 , ≤ 5.15.* (semver)
Unaffected: 6.1.94 , ≤ 6.1.* (semver)
Unaffected: 6.6.34 , ≤ 6.6.* (semver)
Unaffected: 6.9.5 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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\"4c0bfb4e867c1ec6616a5049bd3618021e127056\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3d8f60d38e249f989a7fca9c2370c31c3d5487e1\", \"lessThan\": \"7dabe54a016defe11bb2a278cd9f1ff6db3feba6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3d8f60d38e249f989a7fca9c2370c31c3d5487e1\", \"lessThan\": \"d4f9d5a99a3fd1b1c691b7a1a6f8f3f25f4116c9\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/s390/crypto/ap_bus.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.19\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.19\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.316\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.278\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.219\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.161\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.94\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.34\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/s390/crypto/ap_bus.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2062e3f1f2374102f8014d7ca286b9aa527bd558\"}, {\"url\": \"https://git.kernel.org/stable/c/7c72af16abf2ec7520407098360bbba312289e05\"}, {\"url\": \"https://git.kernel.org/stable/c/7360cef95aa1ea2b5efb7b5e2ed32e941664e1f0\"}, {\"url\": \"https://git.kernel.org/stable/c/67011123453b91ec03671d40712fa213e94a01b9\"}, {\"url\": \"https://git.kernel.org/stable/c/8c5f5911c1b13170d3404eb992c6a0deaa8d81ad\"}, {\"url\": \"https://git.kernel.org/stable/c/4c0bfb4e867c1ec6616a5049bd3618021e127056\"}, {\"url\": \"https://git.kernel.org/stable/c/7dabe54a016defe11bb2a278cd9f1ff6db3feba6\"}, {\"url\": \"https://git.kernel.org/stable/c/d4f9d5a99a3fd1b1c691b7a1a6f8f3f25f4116c9\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ns390/ap: Fix crash in AP internal function modify_bitmap()\\n\\nA system crash like this\\n\\n  Failing address: 200000cb7df6f000 TEID: 200000cb7df6f403\\n  Fault in home space mode while using kernel ASCE.\\n  AS:00000002d71bc007 R3:00000003fe5b8007 S:000000011a446000 P:000000015660c13d\\n  Oops: 0038 ilc:3 [#1] PREEMPT SMP\\n  Modules linked in: mlx5_ib ...\\n  CPU: 8 PID: 7556 Comm: bash Not tainted 6.9.0-rc7 #8\\n  Hardware name: IBM 3931 A01 704 (LPAR)\\n  Krnl PSW : 0704e00180000000 0000014b75e7b606 (ap_parse_bitmap_str+0x10e/0x1f8)\\n  R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3\\n  Krnl GPRS: 0000000000000001 ffffffffffffffc0 0000000000000001 00000048f96b75d3\\n  000000cb00000100 ffffffffffffffff ffffffffffffffff 000000cb7df6fce0\\n  000000cb7df6fce0 00000000ffffffff 000000000000002b 00000048ffffffff\\n  000003ff9b2dbc80 200000cb7df6fcd8 0000014bffffffc0 000000cb7df6fbc8\\n  Krnl Code: 0000014b75e7b5fc: a7840047            brc     8,0000014b75e7b68a\\n  0000014b75e7b600: 18b2                lr      %r11,%r2\\n  #0000014b75e7b602: a7f4000a            brc     15,0000014b75e7b616\\n  \u003e0000014b75e7b606: eb22d00000e6        laog    %r2,%r2,0(%r13)\\n  0000014b75e7b60c: a7680001            lhi     %r6,1\\n  0000014b75e7b610: 187b                lr      %r7,%r11\\n  0000014b75e7b612: 84960021            brxh    %r9,%r6,0000014b75e7b654\\n  0000014b75e7b616: 18e9                lr      %r14,%r9\\n  Call Trace:\\n  [\u003c0000014b75e7b606\u003e] ap_parse_bitmap_str+0x10e/0x1f8\\n  ([\u003c0000014b75e7b5dc\u003e] ap_parse_bitmap_str+0xe4/0x1f8)\\n  [\u003c0000014b75e7b758\u003e] apmask_store+0x68/0x140\\n  [\u003c0000014b75679196\u003e] kernfs_fop_write_iter+0x14e/0x1e8\\n  [\u003c0000014b75598524\u003e] vfs_write+0x1b4/0x448\\n  [\u003c0000014b7559894c\u003e] ksys_write+0x74/0x100\\n  [\u003c0000014b7618a440\u003e] __do_syscall+0x268/0x328\\n  [\u003c0000014b761a3558\u003e] system_call+0x70/0x98\\n  INFO: lockdep is turned off.\\n  Last Breaking-Event-Address:\\n  [\u003c0000014b75e7b636\u003e] ap_parse_bitmap_str+0x13e/0x1f8\\n  Kernel panic - not syncing: Fatal exception: panic_on_oops\\n\\noccured when /sys/bus/ap/a[pq]mask was updated with a relative mask value\\n(like +0x10-0x12,+60,-90) with one of the numeric values exceeding INT_MAX.\\n\\nThe fix is simple: use unsigned long values for the internal variables. The\\ncorrect checks are already in place in the function but a simple int for\\nthe internal variables was used with the possibility to overflow.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.316\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.278\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.219\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.161\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.94\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.34\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.5\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"4.19\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:36:43.496Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-38661\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:36:43.496Z\", \"dateReserved\": \"2024-06-24T13:53:25.560Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-25T14:22:38.224Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • 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.