1843348 - Crash in [@ core::result::unwrap_failed | webrender::renderer::upload::copy_into_staging_buffer]

Status: NEW

(Core :: Graphics: WebRender, defect, P2)

Description

[Ryan VanderMeulen [:RyanVM]]

All crashes are from Windows 11.

Crash report: https://crash-stats.mozilla.org/report/index/2f4f004c-ca6c-4afb-9636-f44a70230713

MOZ_CRASH Reason: called `Result::unwrap()` on an `Err` value: "Failed to transiently map PBO of size 1048576 bytes"

Top 10 frames of crashing thread:

0  xul.dll  MOZ_Crash  mfbt/Assertions.h:281
0  xul.dll  RustMozCrash  mozglue/static/rust/wrappers.cpp:17
1  xul.dll  mozglue_static::panic_hook  mozglue/static/rust/lib.rs:96
2  xul.dll  core::ops::function::Fn::call<void   /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:166
3  xul.dll  alloc::boxed::impl$47::call  library/alloc/src/boxed.rs:2001
3  xul.dll  std::panicking::rust_panic_with_hook  library/std/src/panicking.rs:696
4  xul.dll  std::panicking::begin_panic_handler::closure$0  library/std/src/panicking.rs:583
5  xul.dll  std::sys_common::backtrace::__rust_end_short_backtrace<std::panicking::begin_panic_handler::closure_env$0, never$>  library/std/src/sys_common/backtrace.rs:150
6  xul.dll  std::panicking::begin_panic_handler  library/std/src/panicking.rs:579
7  xul.dll  core::panicking::panic_fmt  library/core/src/panicking.rs:64

Comment 1

[Bob Hood [:bhood]]

Not a high crash volume, and doesn't seem exploitable, so setting to S3. Glenn, please adjust if you feel a different level is required.