{"id":"AZL-57596","summary":"CVE-2024-57939 affecting package kernel for versions less than 5.15.180.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Fix sleeping in invalid context in die()\n\ndie() can be called in exception handler, and therefore cannot sleep.\nHowever, die() takes spinlock_t which can sleep with PREEMPT_RT enabled.\nThat causes the following warning:\n\nBUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\nin_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 285, name: mutex\npreempt_count: 110001, expected: 0\nRCU nest depth: 0, expected: 0\nCPU: 0 UID: 0 PID: 285 Comm: mutex Not tainted 6.12.0-rc7-00022-ge19049cf7d56-dirty #234\nHardware name: riscv-virtio,qemu (DT)\nCall Trace:\n    dump_backtrace+0x1c/0x24\n    show_stack+0x2c/0x38\n    dump_stack_lvl+0x5a/0x72\n    dump_stack+0x14/0x1c\n    __might_resched+0x130/0x13a\n    rt_spin_lock+0x2a/0x5c\n    die+0x24/0x112\n    do_trap_insn_illegal+0xa0/0xea\n    _new_vmalloc_restore_context_a0+0xcc/0xd8\nOops - illegal instruction [#1]\n\nSwitch to use raw_spinlock_t, which does not sleep even with PREEMPT_RT\nenabled.","modified":"2026-04-01T05:19:10.695084Z","published":"2025-01-21T13:15:07Z","upstream":["CVE-2024-57939"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-57939"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.180.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-57596.json"}}],"schema_version":"1.7.5"}