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nsfs: raise SB_I_NODEV and SB_I_NOEXEC

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There's zero need for nsfs to allow device nodes or execution.

Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-5-2e6f823ebdc0@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Christian Brauner 2025-10-29 13:20:18 +01:00
parent b21cba8d87
commit 4af033dad6
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1 changed files with 1 additions and 0 deletions
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fs/nsfs.c
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@ -591,6 +591,7 @@ static int nsfs_init_fs_context(struct fs_context *fc)
struct pseudo_fs_context *ctx = init_pseudo(fc, NSFS_MAGIC);
if (!ctx)
return -ENOMEM;
fc->s_iflags |= SB_I_NOEXEC | SB_I_NODEV;
ctx->s_d_flags |= DCACHE_DONTCACHE;
ctx->ops = &nsfs_ops;
ctx->eops = &nsfs_export_operations;