{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T20:32:27.929","vulnerabilities":[{"cve":{"id":"CVE-2024-44981","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-09-04T20:15:07.533","lastModified":"2024-09-05T17:54:19.377","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nworkqueue: Fix UBSAN 'subtraction overflow' error in shift_and_mask()\n\nUBSAN reports the following 'subtraction overflow' error when booting\nin a virtual machine on Android:\n\n | Internal error: UBSAN: integer subtraction overflow: 00000000f2005515 [#1] PREEMPT SMP\n | Modules linked in:\n | CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.10.0-00006-g3cbe9e5abd46-dirty #4\n | Hardware name: linux,dummy-virt (DT)\n | pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n | pc : cancel_delayed_work+0x34/0x44\n | lr : cancel_delayed_work+0x2c/0x44\n | sp : ffff80008002ba60\n | x29: ffff80008002ba60 x28: 0000000000000000 x27: 0000000000000000\n | x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000\n | x23: 0000000000000000 x22: 0000000000000000 x21: ffff1f65014cd3c0\n | x20: ffffc0e84c9d0da0 x19: ffffc0e84cab3558 x18: ffff800080009058\n | x17: 00000000247ee1f8 x16: 00000000247ee1f8 x15: 00000000bdcb279d\n | x14: 0000000000000001 x13: 0000000000000075 x12: 00000a0000000000\n | x11: ffff1f6501499018 x10: 00984901651fffff x9 : ffff5e7cc35af000\n | x8 : 0000000000000001 x7 : 3d4d455453595342 x6 : 000000004e514553\n | x5 : ffff1f6501499265 x4 : ffff1f650ff60b10 x3 : 0000000000000620\n | x2 : ffff80008002ba78 x1 : 0000000000000000 x0 : 0000000000000000\n | Call trace:\n |  cancel_delayed_work+0x34/0x44\n |  deferred_probe_extend_timeout+0x20/0x70\n |  driver_register+0xa8/0x110\n |  __platform_driver_register+0x28/0x3c\n |  syscon_init+0x24/0x38\n |  do_one_initcall+0xe4/0x338\n |  do_initcall_level+0xac/0x178\n |  do_initcalls+0x5c/0xa0\n |  do_basic_setup+0x20/0x30\n |  kernel_init_freeable+0x8c/0xf8\n |  kernel_init+0x28/0x1b4\n |  ret_from_fork+0x10/0x20\n | Code: f9000fbf 97fffa2f 39400268 37100048 (d42aa2a0)\n | ---[ end trace 0000000000000000 ]---\n | Kernel panic - not syncing: UBSAN: integer subtraction overflow: Fatal exception\n\nThis is due to shift_and_mask() using a signed immediate to construct\nthe mask and being called with a shift of 31 (WORK_OFFQ_POOL_SHIFT) so\nthat it ends up decrementing from INT_MIN.\n\nUse an unsigned constant '1U' to generate the mask in shift_and_mask()."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: workqueue: Se corrige el error de 'desbordamiento de sustracción' de UBSAN en shift_and_mask() UBSAN informa el siguiente error de 'desbordamiento de sustracción' al arrancar en una máquina virtual en Android: | Error interno: UBSAN: desbordamiento de sustracción de enteros: 00000000f2005515 [#1] PREEMPT SMP | Módulos vinculados en: | CPU: 0 PID: 1 Comm: swapper/0 No contaminado 6.10.0-00006-g3cbe9e5abd46-dirty #4 | Nombre del hardware: linux,dummy-virt (DT) | pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) | pc : cancel_delayed_work+0x34/0x44 | lr : cancelar_trabajo_retrasado+0x2c/0x44 | sp : ffff80008002ba60 | x29: ffff80008002ba60 x28: 0000000000000000 x27: 0000000000000000 | x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000 | x23: 0000000000000000 x22: 0000000000000000 x21: ffff1f65014cd3c0 | x20: ffffc0e84c9d0da0 x19: ffffc0e84cab3558 x18: ffff800080009058 | x17: 00000000247ee1f8 x16: 00000000247ee1f8 x15: 00000000bdcb279d | x14: 0000000000000001 x13: 0000000000000075 x12: 00000a0000000000 | x11: ffff1f6501499018 x10: 00984901651fffff x9 : ffff5e7cc35af000 | x8 : 0000000000000001 x7 : 3d4d455453595342 x6 : 000000004e514553 | x5 : ffff1f6501499265 x4 : ffff1f650ff60b10 x3 : 0000000000000620 | x2 : ffff80008002ba78 x1 : 0000000000000000 x0 : 0000000000000000 | Rastreo de llamadas: | cancel_delayed_work+0x34/0x44 | deferred_probe_extend_timeout+0x20/0x70 | driver_register+0xa8/0x110 | __platform_driver_register+0x28/0x3c | syscon_init+0x24/0x38 | hacer_una_initcall+0xe4/0x338 | hacer_initcall_level+0xac/0x178 | hacer_initcalls+0x5c/0xa0 | hacer_configuración_básica+0x20/0x30 | kernel_init_freeable+0x8c/0xf8 | kernel_init+0x28/0x1b4 | ret_from_fork+0x10/0x20 | Código: f9000fbf 97fffa2f 39400268 37100048 (d42aa2a0) | ---[ fin de seguimiento 000000000000000 ]--- | Pánico del núcleo: no se sincroniza: UBSAN: desbordamiento de sustracción de enteros: excepción fatal Esto se debe a que shift_and_mask() usa una función inmediata con signo para construir la máscara y se la llama con un desplazamiento de 31 (WORK_OFFQ_POOL_SHIFT), por lo que termina disminuyendo desde INT_MIN. Use una constante sin signo '1U' para generar la máscara en shift_and_mask()."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-190"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.10.7","matchCriteriaId":"E55C1263-DF43-41EF-8DA8-2BA68DF4FFFD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*","matchCriteriaId":"8B3CE743-2126-47A3-8B7C-822B502CF119"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*","matchCriteriaId":"4DEB27E7-30AA-45CC-8934-B89263EF3551"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*","matchCriteriaId":"E0005AEF-856E-47EB-BFE4-90C46899394D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*","matchCriteriaId":"39889A68-6D34-47A6-82FC-CD0BF23D6754"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/38f7e14519d39cf524ddc02d4caee9b337dad703","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/90a6a844b2d9927d192758438a4ada33d8cd9de5","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}