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Title: deps: cherry-pick libuv/libuv@439a54b by skooch · Pull Request #62881 · nodejs/node · GitHub

Open Graph Title: deps: cherry-pick libuv/libuv@439a54b by skooch · Pull Request #62881 · nodejs/node

X Title: deps: cherry-pick libuv/libuv@439a54b by skooch · Pull Request #62881 · nodejs/node

Description: Cherry-pick libuv/libuv@439a54b to fix uv_fs_copyfile() failing with EPERM on CIFS/SMB mounts. Timestamp preservation is now best-effort, matching the existing treatment of fchown() in the same function. I'm also the author of the libuv fix. This is a regression introduced by the libuv 1.49.0 update (Node.js 22.12.0 via #55114), which added timestamp preservation to uv_fs_copyfile(). Since then, fs.copyFile() / fs.copyFileSync() have failed with EPERM on CIFS/SMB mounts on Linux. The buggy block is the same on v22.x-staging and v24.x-staging (both on libuv 1.51.0), so lts-watch-v22.x and lts-watch-v24.x are good candidates once this matures. Fixes: #56248 Refs: libuv/libuv#5053 Refs: libuv/libuv#4396

Open Graph Description: Cherry-pick libuv/libuv@439a54b to fix uv_fs_copyfile() failing with EPERM on CIFS/SMB mounts. Timestamp preservation is now best-effort, matching the existing treatment of fchown() in the same fun...

X Description: Cherry-pick libuv/libuv@439a54b to fix uv_fs_copyfile() failing with EPERM on CIFS/SMB mounts. Timestamp preservation is now best-effort, matching the existing treatment of fchown() in the same fun...

Opengraph URL: https://github.com/nodejs/node/pull/62881

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afeff8e deps: cherry-pick libuv/libuv@439a54b skooch Mar 11, 2026 https://github.com/nodejs/node/pull/62881/commits/afeff8ec264d4650e0a0ac40191205e644f525fc
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