Wind River Support Network

Description

In the Linux kernel, the following vulnerability has been resolved:EOL][EOL]riscv:uprobe fix SR_SPIE set/clear handling[EOL][EOL]In riscv the process of uprobe going to clear spie before exec[EOL]the origin insn,and set spie after that.But When access the page[EOL]which origin insn has been placed a page fault may happen and[EOL]irq was disabled in arch_uprobe_pre_xol function,It cause a WARN[EOL]as follows.[EOL]There is no need to clear/set spie in arch_uprobe_pre/post/abort_xol.[EOL]We can just remove it.[EOL][EOL][   31.684157] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1488[EOL][   31.684677] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 76, name: work[EOL][   31.684929] preempt_count: 0, expected: 0[EOL][   31.685969] CPU: 2 PID: 76 Comm: work Tainted: G[EOL][   31.686542] Hardware name: riscv-virtio,qemu (DT)[EOL][   31.686797] Call Trace:[EOL][   31.687053] [<ffffffff80006442>] dump_backtrace+0x30/0x38[EOL][   31.687699] [<ffffffff80812118>] show_stack+0x40/0x4c[EOL][   31.688141] [<ffffffff8081817a>] dump_stack_lvl+0x44/0x5c[EOL][   31.688396] [<ffffffff808181aa>] dump_stack+0x18/0x20[EOL][   31.688653] [<ffffffff8003e454>] __might_resched+0x114/0x122[EOL][   31.688948] [<ffffffff8003e4b2>] __might_sleep+0x50/0x7a[EOL][   31.689435] [<ffffffff80822676>] down_read+0x30/0x130[EOL][   31.689728] [<ffffffff8000b650>] do_page_fault+0x166/x446[EOL][   31.689997] [<ffffffff80003c0c>] ret_from_exception+0x0/0xc

CREATE(Triage):(User=lchen-cn) [CVE-2022-50225 (https://nvd.nist.gov/vuln/detail/CVE-2022-50225)