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| author | Darrick J. Wong <[email protected]> | 2025-10-21 18:29:56 +0000 |
|---|---|---|
| committer | Carlos Maiolino <[email protected]> | 2025-10-22 08:04:39 +0000 |
| commit | bd721ec7dedcc24ced51559e42a39140b59dfd08 (patch) | |
| tree | c6ce989e0e338f6221df25f145ef1aa8d6a96630 /lib/mpi/mpi-mod.c | |
| parent | xfs: don't use __GFP_NOFAIL in xfs_init_fs_context (diff) | |
| download | kernel-bd721ec7dedcc24ced51559e42a39140b59dfd08.tar.gz kernel-bd721ec7dedcc24ced51559e42a39140b59dfd08.zip | |
xfs: don't set bt_nr_sectors to a negative number
xfs_daddr_t is a signed type, which means that xfs_buf_map_verify is
using a signed comparison. This causes problems if bt_nr_sectors is
never overridden (e.g. in the case of an xfbtree for rmap btree repairs)
because even daddr 0 can't pass the verifier test in that case.
Define an explicit max constant and set the initial bt_nr_sectors to a
positive value.
Found by xfs/422.
Cc: [email protected] # v6.18-rc1
Fixes: 42852fe57c6d2a ("xfs: track the number of blocks in each buftarg")
Signed-off-by: Darrick J. Wong <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Carlos Maiolino <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-mod.c')
0 files changed, 0 insertions, 0 deletions