{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-38661","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-06-24T13:53:25.560Z","datePublished":"2024-06-25T14:22:38.224Z","dateUpdated":"2026-01-05T10:36:43.496Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-01-05T10:36:43.496Z"},"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  >0000014b75e7b606: 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  [<0000014b75e7b606>] ap_parse_bitmap_str+0x10e/0x1f8\n  ([<0000014b75e7b5dc>] ap_parse_bitmap_str+0xe4/0x1f8)\n  [<0000014b75e7b758>] apmask_store+0x68/0x140\n  [<0000014b75679196>] kernfs_fop_write_iter+0x14e/0x1e8\n  [<0000014b75598524>] vfs_write+0x1b4/0x448\n  [<0000014b7559894c>] ksys_write+0x74/0x100\n  [<0000014b7618a440>] __do_syscall+0x268/0x328\n  [<0000014b761a3558>] system_call+0x70/0x98\n  INFO: lockdep is turned off.\n  Last Breaking-Event-Address:\n  [<0000014b75e7b636>] 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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/s390/crypto/ap_bus.c"],"versions":[{"version":"3d8f60d38e249f989a7fca9c2370c31c3d5487e1","lessThan":"2062e3f1f2374102f8014d7ca286b9aa527bd558","status":"affected","versionType":"git"},{"version":"3d8f60d38e249f989a7fca9c2370c31c3d5487e1","lessThan":"7c72af16abf2ec7520407098360bbba312289e05","status":"affected","versionType":"git"},{"version":"3d8f60d38e249f989a7fca9c2370c31c3d5487e1","lessThan":"7360cef95aa1ea2b5efb7b5e2ed32e941664e1f0","status":"affected","versionType":"git"},{"version":"3d8f60d38e249f989a7fca9c2370c31c3d5487e1","lessThan":"67011123453b91ec03671d40712fa213e94a01b9","status":"affected","versionType":"git"},{"version":"3d8f60d38e249f989a7fca9c2370c31c3d5487e1","lessThan":"8c5f5911c1b13170d3404eb992c6a0deaa8d81ad","status":"affected","versionType":"git"},{"version":"3d8f60d38e249f989a7fca9c2370c31c3d5487e1","lessThan":"4c0bfb4e867c1ec6616a5049bd3618021e127056","status":"affected","versionType":"git"},{"version":"3d8f60d38e249f989a7fca9c2370c31c3d5487e1","lessThan":"7dabe54a016defe11bb2a278cd9f1ff6db3feba6","status":"affected","versionType":"git"},{"version":"3d8f60d38e249f989a7fca9c2370c31c3d5487e1","lessThan":"d4f9d5a99a3fd1b1c691b7a1a6f8f3f25f4116c9","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/s390/crypto/ap_bus.c"],"versions":[{"version":"4.19","status":"affected"},{"version":"0","lessThan":"4.19","status":"unaffected","versionType":"semver"},{"version":"4.19.316","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.278","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.219","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.161","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.94","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.34","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.9.5","lessThanOrEqual":"6.9.*","status":"unaffected","versionType":"semver"},{"version":"6.10","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":"4.19","versionEndExcluding":"4.19.316"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.4.278"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.10.219"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.15.161"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.1.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.6.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.9.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.10"}]}]}],"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"}],"title":"s390/ap: 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