{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-38540","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-06-18T19:36:34.918Z","datePublished":"2024-06-19T13:35:15.823Z","dateUpdated":"2025-11-03T21:55:46.119Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:13:35.237Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq\n\nUndefined behavior is triggered when bnxt_qplib_alloc_init_hwq is called\nwith hwq_attr->aux_depth != 0 and hwq_attr->aux_stride == 0.\nIn that case, \"roundup_pow_of_two(hwq_attr->aux_stride)\" gets called.\nroundup_pow_of_two is documented as undefined for 0.\n\nFix it in the one caller that had this combination.\n\nThe undefined behavior was detected by UBSAN:\n  UBSAN: shift-out-of-bounds in ./include/linux/log2.h:57:13\n  shift exponent 64 is too large for 64-bit type 'long unsigned int'\n  CPU: 24 PID: 1075 Comm: (udev-worker) Not tainted 6.9.0-rc6+ #4\n  Hardware name: Abacus electric, s.r.o. - servis@abacus.cz Super Server/H12SSW-iN, BIOS 2.7 10/25/2023\n  Call Trace:\n   <TASK>\n   dump_stack_lvl+0x5d/0x80\n   ubsan_epilogue+0x5/0x30\n   __ubsan_handle_shift_out_of_bounds.cold+0x61/0xec\n   __roundup_pow_of_two+0x25/0x35 [bnxt_re]\n   bnxt_qplib_alloc_init_hwq+0xa1/0x470 [bnxt_re]\n   bnxt_qplib_create_qp+0x19e/0x840 [bnxt_re]\n   bnxt_re_create_qp+0x9b1/0xcd0 [bnxt_re]\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? __kmalloc+0x1b6/0x4f0\n   ? create_qp.part.0+0x128/0x1c0 [ib_core]\n   ? __pfx_bnxt_re_create_qp+0x10/0x10 [bnxt_re]\n   create_qp.part.0+0x128/0x1c0 [ib_core]\n   ib_create_qp_kernel+0x50/0xd0 [ib_core]\n   create_mad_qp+0x8e/0xe0 [ib_core]\n   ? __pfx_qp_event_handler+0x10/0x10 [ib_core]\n   ib_mad_init_device+0x2be/0x680 [ib_core]\n   add_client_context+0x10d/0x1a0 [ib_core]\n   enable_device_and_get+0xe0/0x1d0 [ib_core]\n   ib_register_device+0x53c/0x630 [ib_core]\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   bnxt_re_probe+0xbd8/0xe50 [bnxt_re]\n   ? __pfx_bnxt_re_probe+0x10/0x10 [bnxt_re]\n   auxiliary_bus_probe+0x49/0x80\n   ? driver_sysfs_add+0x57/0xc0\n   really_probe+0xde/0x340\n   ? pm_runtime_barrier+0x54/0x90\n   ? __pfx___driver_attach+0x10/0x10\n   __driver_probe_device+0x78/0x110\n   driver_probe_device+0x1f/0xa0\n   __driver_attach+0xba/0x1c0\n   bus_for_each_dev+0x8f/0xe0\n   bus_add_driver+0x146/0x220\n   driver_register+0x72/0xd0\n   __auxiliary_driver_register+0x6e/0xd0\n   ? __pfx_bnxt_re_mod_init+0x10/0x10 [bnxt_re]\n   bnxt_re_mod_init+0x3e/0xff0 [bnxt_re]\n   ? __pfx_bnxt_re_mod_init+0x10/0x10 [bnxt_re]\n   do_one_initcall+0x5b/0x310\n   do_init_module+0x90/0x250\n   init_module_from_file+0x86/0xc0\n   idempotent_init_module+0x121/0x2b0\n   __x64_sys_finit_module+0x5e/0xb0\n   do_syscall_64+0x82/0x160\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? syscall_exit_to_user_mode_prepare+0x149/0x170\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? syscall_exit_to_user_mode+0x75/0x230\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? do_syscall_64+0x8e/0x160\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? __count_memcg_events+0x69/0x100\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? count_memcg_events.constprop.0+0x1a/0x30\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? handle_mm_fault+0x1f0/0x300\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? do_user_addr_fault+0x34e/0x640\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\n  RIP: 0033:0x7f4e5132821d\n  Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e3 db 0c 00 f7 d8 64 89 01 48\n  RSP: 002b:00007ffca9c906a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139\n  RAX: ffffffffffffffda RBX: 0000563ec8a8f130 RCX: 00007f4e5132821d\n  RDX: 0000000000000000 RSI: 00007f4e518fa07d RDI: 000000000000003b\n  RBP: 00007ffca9c90760 R08: 00007f4e513f6b20 R09: 00007ffca9c906f0\n  R10: 0000563ec8a8faa0 R11: 0000000000000246 R12: 00007f4e518fa07d\n  R13: 0000000000020000 R14: 0000563ec8409e90 R15: 0000563ec8a8fa60\n   </TASK>\n  ---[ end trace ]---"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/bnxt_re/qplib_fp.c"],"versions":[{"version":"0c4dcd602817502bb3dced7a834a13ef717d65a4","lessThan":"66a9937187ac9b5c5ffff07b8b284483e56804d1","status":"affected","versionType":"git"},{"version":"0c4dcd602817502bb3dced7a834a13ef717d65a4","lessThan":"84d2f29152184f0d72ed7c9648c4ee6927df4e59","status":"affected","versionType":"git"},{"version":"0c4dcd602817502bb3dced7a834a13ef717d65a4","lessThan":"a658f011d89dd20cf2c7cb4760ffd79201700b98","status":"affected","versionType":"git"},{"version":"0c4dcd602817502bb3dced7a834a13ef717d65a4","lessThan":"627493443f3a8458cb55cdae1da254a7001123bc","status":"affected","versionType":"git"},{"version":"0c4dcd602817502bb3dced7a834a13ef717d65a4","lessThan":"8b799c00cea6fcfe5b501bbaeb228c8821acb753","status":"affected","versionType":"git"},{"version":"0c4dcd602817502bb3dced7a834a13ef717d65a4","lessThan":"78cfd17142ef70599d6409cbd709d94b3da58659","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/infiniband/hw/bnxt_re/qplib_fp.c"],"versions":[{"version":"5.7","status":"affected"},{"version":"0","lessThan":"5.7","status":"unaffected","versionType":"semver"},{"version":"5.15.181","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.117","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.33","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.8.12","lessThanOrEqual":"6.8.*","status":"unaffected","versionType":"semver"},{"version":"6.9.3","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":"5.7","versionEndExcluding":"5.15.181"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.1.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.6.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.8.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.9.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.10"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/66a9937187ac9b5c5ffff07b8b284483e56804d1"},{"url":"https://git.kernel.org/stable/c/84d2f29152184f0d72ed7c9648c4ee6927df4e59"},{"url":"https://git.kernel.org/stable/c/a658f011d89dd20cf2c7cb4760ffd79201700b98"},{"url":"https://git.kernel.org/stable/c/627493443f3a8458cb55cdae1da254a7001123bc"},{"url":"https://git.kernel.org/stable/c/8b799c00cea6fcfe5b501bbaeb228c8821acb753"},{"url":"https://git.kernel.org/stable/c/78cfd17142ef70599d6409cbd709d94b3da58659"}],"title":"bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-noinfo Not enough information"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.4,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"HIGH","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-06-24T15:37:42.492444Z","id":"CVE-2024-38540","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-05-07T19:54:28.166Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/a658f011d89dd20cf2c7cb4760ffd79201700b98","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/627493443f3a8458cb55cdae1da254a7001123bc","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8b799c00cea6fcfe5b501bbaeb228c8821acb753","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/78cfd17142ef70599d6409cbd709d94b3da58659","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T21:55:46.119Z"}}]}}