{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-09T15:56:31.802","vulnerabilities":[{"cve":{"id":"CVE-2023-54287","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-12-30T13:16:17.730","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: imx: disable Ageing Timer interrupt request irq\n\nThere maybe pending USR interrupt before requesting irq, however\nuart_add_one_port has not executed, so there will be kernel panic:\n[    0.795668] Unable to handle kernel NULL pointer dereference at virtual addre\nss 0000000000000080\n[    0.802701] Mem abort info:\n[    0.805367]   ESR = 0x0000000096000004\n[    0.808950]   EC = 0x25: DABT (current EL), IL = 32 bits\n[    0.814033]   SET = 0, FnV = 0\n[    0.816950]   EA = 0, S1PTW = 0\n[    0.819950]   FSC = 0x04: level 0 translation fault\n[    0.824617] Data abort info:\n[    0.827367]   ISV = 0, ISS = 0x00000004\n[    0.831033]   CM = 0, WnR = 0\n[    0.833866] [0000000000000080] user address but active_mm is swapper\n[    0.839951] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n[    0.845953] Modules linked in:\n[    0.848869] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.1+g56321e101aca #1\n[    0.855617] Hardware name: Freescale i.MX8MP EVK (DT)\n[    0.860452] pstate: 000000c5 (nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    0.867117] pc : __imx_uart_rxint.constprop.0+0x11c/0x2c0\n[    0.872283] lr : imx_uart_int+0xf8/0x1ec\n\nThe issue only happends in the inmate linux when Jailhouse hypervisor\nenabled. The test procedure is:\nwhile true; do\n\tjailhouse enable imx8mp.cell\n\tjailhouse cell linux xxxx\n\tsleep 10\n\tjailhouse cell destroy 1\n\tjailhouse disable\n\tsleep 5\ndone\n\nAnd during the upper test, press keys to the 2nd linux console.\nWhen `jailhouse cell destroy 1`, the 2nd linux has no chance to put\nthe uart to a quiese state, so USR1/2 may has pending interrupts. Then\nwhen `jailhosue cell linux xx` to start 2nd linux again, the issue\ntrigger.\n\nIn order to disable irqs before requesting them, both UCR1 and UCR2 irqs\nshould be disabled, so here fix that, disable the Ageing Timer interrupt\nin UCR2 as UCR1 does."},{"lang":"es","value":"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ntty: serial: imx: deshabilitar la solicitud de interrupción irq del temporizador de envejecimiento\n\nPuede haber una interrupción USR pendiente antes de solicitar irq, sin embargo, uart_add_one_port no se ha ejecutado, por lo que habrá un pánico del kernel:\n[    0.795668] Incapaz de manejar la desreferencia de puntero NULL del kernel en la dirección virtual 0000000000000080\n[    0.802701] Información de aborto de memoria:\n[    0.805367]   ESR = 0x0000000096000004\n[    0.808950]   EC = 0x25: DABT (EL actual), IL = 32 bits\n[    0.814033]   SET = 0, FnV = 0\n[    0.816950]   EA = 0, S1PTW = 0\n[    0.819950]   FSC = 0x04: fallo de traducción de nivel 0\n[    0.824617] Información de aborto de datos:\n[    0.827367]   ISV = 0, ISS = 0x00000004\n[    0.831033]   CM = 0, WnR = 0\n[    0.833866] [0000000000000080] dirección de usuario pero active_mm es swapper\n[    0.839951] Error interno: Oops: 0000000096000004 [#1] PREEMPT SMP\n[    0.845953] Módulos enlazados:\n[    0.848869] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.1+g56321e101aca #1\n[    0.855617] Nombre del hardware: Freescale i.MX8MP EVK (DT)\n[    0.860452] pstate: 000000c5 (nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    0.867117] pc : __imx_uart_rxint.constprop.0+0x11c/0x2c0\n[    0.872283] lr : imx_uart_int+0xf8/0x1ec\n\nEl problema solo ocurre en el linux 'inmate' cuando el hipervisor Jailhouse está habilitado. El procedimiento de prueba es:\nwhile true; do\n\tjailhouse enable imx8mp.cell\n\tjailhouse cell linux xxxx\n\tsleep 10\n\tjailhouse cell destroy 1\n\tjailhouse disable\n\tsleep 5\ndone\n\nY durante la prueba anterior, presione teclas en la segunda consola de linux.\nCuando 'jailhouse cell destroy 1', el segundo linux no tiene oportunidad de poner el uart en un estado de reposo, por lo que USR1/2 puede tener interrupciones pendientes. Luego, cuando 'jailhosue cell linux xx' para iniciar el segundo linux nuevamente, el problema se activa.\n\nPara deshabilitar las irqs antes de solicitarlas, tanto las irqs de UCR1 como las de UCR2 deben deshabilitarse, así que aquí se corrige eso, deshabilitando la interrupción del temporizador de envejecimiento en UCR2 como lo hace UCR1."}],"metrics":{},"references":[{"url":"https://git.kernel.org/stable/c/3d41d9b256ae626c0dc434427c8e32450358d3b4","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/963875b0655197281775b0ea614aab8b6b3eb001","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9795ece3a85ba9238191e97665586e2d79703ff3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ef25e16ea9674b713a68c3bda821556ce9901254","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}]}}]}