kernel/git/stable/linux-stable.git/tools/testing/selftests, branch master

Merge tag 'mm-hotfixes-stable-2026-07-06-17-49' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-07-07T01:51:36+00:00

Pull misc fixes from Andrew Morton: "20 hotfixes. 17 are for MM. 12 are cc:stable and the remaining 8 address post-7.1 issues or aren't considered suitable for backporting. Two patches from SJ addresses a couple of quite old DAMON issues. And two patches from Yichong Chen fixes tools/virtio build issues. The remaining patches are singletons" * tag 'mm-hotfixes-stable-2026-07-06-17-49' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: tools/include: include stdint.h for SIZE_MAX in overflow.h tools/virtio: add missing compat definitions for vhost_net_test mm: do file ownership checks with the proper mount idmap samples/damon/mtier: fail early if address range parameters are invalid mm: a second pagecache maintainer mm/damon: add a kernel-doc comment for damon_ctx->rnd_state mm/damon: add a kernel-doc comment for damon_ctx->probes mailmap: add entries for Radu Rendec selftests/mm: hmm-tests: include linux/mman.h to access MADV_COLLAPSE selftests/mm: pagemap_ioctl: use the correct page size for transact_test() fs/proc: fix KPF_KSM reported for all anonymous pages mm: page_ext: add count limit to page_ext_iter_next to prevent invalid PFN access mm/damon/ops-common: handle extreme intervals in damon_hot_score() MAINTAINERS: add Lance as an rmap reviewer mm/compaction: handle free_pages_prepare() properly in compaction_free() mm/damon/sysfs-schemes: put stats for scheme_add_dirs() internal error mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs() mm: shrinker: fix NULL pointer dereference in debugfs mm: shrinker: fix shrinker_info teardown race with expansion selftests/mm: fix ksft_process_madv.sh test category

Merge tag 'perf-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-07-05T15:34:43+00:00

Pull perf events fixes from Ingo Molnar: - Fix a perf_event_attr::remove_on_exec bug for group events (Taeyang Lee) - Fix uprobes CALL emulation interaction with shadow stacks, and add a testcase for this (David Windsor) - Fix uprobes unregister bug (Jiri Olsa) * tag 'perf-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: uprobes/x86: Use proper mm_struct in __in_uprobe_trampoline selftests/x86: Add shadow stack uprobe CALL test x86/uprobes: Keep shadow stack in sync for emulated CALLs perf/core: Detach event groups during remove_on_exec

Merge tag 'vfs-7.2-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

2026-07-03T15:48:05+00:00

Pull vfs fixes from Christian Brauner: - netfs: - fix the decision when to disallow write-streaming with fscache in use, handling of asynchronous cache object creation, a double fput in cachefiles, clearing S_KERNEL_FILE without the inode lock held, page extraction bugs in the iov_iter helpers (a potential underflow, a missing allocation failure check, a memory leak, and a folio offset miscalculation), writeback error and ENOMEM handling, DIO write retry for filesystems without a ->prepare_write() method, and the replacement of the wb_lock mutex with a bit lock plus writethrough collection offload so that multiple asynchronous writebacks don't interfere with each other. - Fix the barriering when walking the netfs subrequest list during retries as it was possible to see a subrequest that was just added by the application thread. - iomap: - Change iomap to submit read bios after each extent instead of building them up across extents. The old behavior was considered problematic for a while and now caused an actual erofs bug. - Guard the ioend io_size EOF trim in iomap against underflow when a concurrent truncate moves EOF below the start of the ioend, wrapping io_size to a huge value. - overlayfs - Fix a stale overlayfs comment about the locking order. - Store the linked-in upper dentry instead of the disconnected O_TMPFILE dentry during overlayfs tmpfile copy-up. With a FUSE or virtiofs upper layer ->d_revalidate() would try to look up "/" in the workdir and fail, causing persistent ESTALE errors that broke dpkg and apt. - vfs-bpf: Have the bpf_real_data_inode() kfunc take a struct file instead of a dentry so it is usable from the bprm_check_security, mmap_file, and file_mprotect hooks, and rename it from bpf_real_inode() to make the data-inode semantics explicit. The kfunc landed this cycle so the change is safe. - afs: NULL pointer dereferences in the callback service and in afs_get_tree(), several memory and refcount leaks, missing locking around the dynamic root inode numbers and premature cell exposure through /afs, a netns destruction hang caused by a misplaced increment of net->cells_outstanding, a bulk lookup malfunction caused by the dir_emit() API change, inode (re)initialisation issues, and assorted smaller fixes to error codes, seqlock handling, and debug output. - vfs: Refuse O_TMPFILE creation with an unmapped fsuid or fsgid and add a selftest for it. - vboxsf: Add Jori Koolstra as vboxsf maintainer, taking over from Hans de Goede. - dio: Release the pages attached to a short atomic dio bio; the REQ_ATOMIC size check error path leaked them. - procfs: Only bump the parent directory link count when registering directories in procfs. Registering regular files inflated the count and leaked a link on every create and remove cycle. - minix: Avoid an unsigned overflow in the minix bitmap block count calculation that let crafted images with huge inode or zone counts pass superblock validation and crash the kernel during mount. - cachefiles: Fix a double unlock in the cachefiles nomem_d_alloc error path left over from the start_creating() conversion. - fat: Stop fat from reading directory entries past the 0x00 end-of-directory marker. If the trailing on-disk slots aren't zero-filled the driver surfaced arbitrary garbage as directory entries. - freexvfs: Don't BUG() on unknown typed-extent types in freevxfs, reachable via ioctl(FIBMAP) on a crafted image; fail with an I/O error instead. - orangefs: Keep the readdir entry size 64-bit in orangefs fill_from_part(). Truncating it to __u32 bypassed the bounds check and led to out-of-bounds reads triggerable by the userspace client. - xfs: Fix the error unwind in xfs_open_devices() which released the rt device file twice and left dangling buftarg pointers behind that were freed again when the failed mount was torn down. - exec: Fix an off-by-one in the comment documenting the maximum binfmt rewrite depth in exec_binprm(). The code allows five rewrites, not four; restricting the code would break userspace so the comment is fixed instead. - file handles: Reject detached mounts in capable_wrt_mount(). A detached mount can be dissolved concurrently, leaving a NULL mount namespace that open_by_handle_at() would dereference. * tag 'vfs-7.2-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (57 commits) netfs: Fix barriering when walking subrequest list iomap: submit read bio after each extent fuse: call fuse_send_readpages explicitly from fuse_readahead iomap: consolidate bio submission fhandle: reject detached mounts in capable_wrt_mount() netfs: Fix DIO write retry for filesystems without a ->prepare_write() netfs: Fix folio state after ENOMEM whilst under writeback iteration netfs: Fix writeback error handling netfs: Fix writethrough to use collection offload netfs: Replace wb_lock with a bit lock for asynchronicity netfs: Fix kdoc warning scatterlist: Fix offset in folio calc in extract_xarray_to_sg() iov_iter: Remove unused variable in kunit_iov_iter.c iov_iter: Fix a memory leak in iov_iter_extract_user_pages() iov_iter: Fix missing alloc fail check in iov_iter_extract_bvec_pages() iov_iter: Fix potential underflow in iov_iter_extract_xarray_pages() cachefiles: Fix file burial to take lock when unsetting S_KERNEL_FILE cachefiles: Fix double fput netfs: Fix netfs_create_write_req() to handle async cache object creation netfs: Fix decision whether to disallow write-streaming due to fscache use ...

Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

2026-07-03T02:39:28+00:00

Pull BPF fixes from Daniel Borkmann: - Initialize task local storage before fork bails out to free the task (Jann Horn) - Fix insn_aux_data leak on verifier error path (KaFai Wan) - Reject BPF inode storage map creation when BPF LSM is uninitialized (Matt Bobrowski) - Mask pseudo pointer values in verifier logs when pointer leaks are not allowed (Nuoqi Gui) - Harden BPF JIT against spraying via IBPB flush (Pawan Gupta) - Reject a skb-modifying SK_SKB stream parser since the latter is only meant to measure the next message (Sechang Lim) - Fix bpf_refcount_acquire to reject refcounted allocation arguments with a non-zero fixed offset (Yiyang Chen) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf: Prefer dirty packs for eBPF allocations bpf: Prefer packs that won't trigger an IBPB flush on allocation bpf: Skip redundant IBPB in pack allocator bpf: Restrict JIT predictor flush to cBPF x86/bugs: Enable IBPB flush on BPF JIT allocation bpf: Support for hardening against JIT spraying bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM is uninitialized bpf,fork: wipe ->bpf_storage before bailouts that access it bpf: Fix insn_aux_data leak on verifier err_free_env path selftests/bpf: Cover pseudo-BTF ksym log masking bpf: Mask pseudo pointer values in verifier logs selftests/bpf: Cover refcount acquire node offsets bpf: Reject offset refcount acquire arguments selftests/bpf: test rejection of a packet-modifying SK_SKB stream parser bpf, sockmap: reject a packet-modifying SK_SKB stream parser selftests/bpf: don't modify the skb in the strparser parser prog

Merge tag 'vfio-v7.2-rc2' of https://github.com/awilliam/linux-vfio

2026-07-03T01:25:54+00:00

Pull VFIO fixes from Alex Williamson: "Mostly straightforward fixes here, inconsistent runtime PM handling due to global device policies, bitfield races, unwind path gaps, teardown ordering, and a misplaced library flag. - Fix racy bitfield updates in vfio-pci-core and the mlx5 vfio-pci variant driver with a binary split between setup/release and runtime modified flags. These were noted across several Sashiko reviews as pre-existing issues (Alex Williamson) - Fix runtime PM inconsistency where the vfio-pci driver module_init could modify the idle PM policy of existing devices through globals managed in vfio-pci-core, leading to unbalanced runtime PM operations (Alex Williamson) - Restore mutability of writable vfio-pci module options by further pulling policy globals out of vfio-pci-core, to instead be latched per device at device init. Provide visibility of the per device latched values through debugfs (Alex Williamson) - Fix missing VGA arbiter uninit callback in unwind path (Alex Williamson) - Reorder device debugfs removal before device_del() to avoid gap where debugfs is available with stale devres pointers (Alex Williamson) - Move UUID library linking flag from vfio selftest Makefile into libvfio.mk to avoid exposing such dependencies when linking with KVM selftests (Sean Christopherson)" * tag 'vfio-v7.2-rc2' of https://github.com/awilliam/linux-vfio: vfio: selftests: Add luuid to libvfio.mk's list of libraries, not to the Makefile vfio/pci: Expose latched module parameter policy in debugfs vfio: Remove device debugfs before releasing devres vfio/pci: Latch all module parameters per device vfio/mlx5: Fix racy bitfields and tighten struct layout vfio/pci: Fix racy bitfields and tighten struct layout vfio/pci: Release the VGA arbiter client on register_device() failure vfio/pci: Latch disable_idle_d3 per device

Merge tag 'net-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-07-02T16:01:12+00:00

Pull networking fixes from Paolo Abeni: "Including fixes from netfilter and batman-adv. Current release - new code bugs: - netfilter: cthelper: cap to maximum number of expectation per master Previous releases - regressions: - netpoll: fix a use-after-free on shutdown path - tcp: restore RCU grace period in tcp_ao_destroy_sock - ipv6: fix NULL deref in fib6_walk_continiue() on multi-batch dump - batman-adv: dat: ensure accessible eth_hdr proto field - eth: - virtio_net: disable cb when NAPI is busy-polled - lan743x: Initialize eth_syslock spinlock before use Previous releases - always broken: - netfilter: - nft_set_pipapo: don't leak bad clone into future transaction - sched: - sch_teql: Introduce slaves_lock to avoid race condition and UAF - replace direct dequeue call with peek and qdisc_dequeue_peeked - sctp: add INIT verification after cookie unpacking - tipc: fix out-of-bounds read in broadcast Gap ACK blocks - seg6: validate SRH length before reading fixed fields - eth: - mlx5e: fix use-after-free of metadata_dst on RX SC delete - enetc: check the number of BDs needed for xdp_frame - fbnic: don't cache shinfo across skb realloc" * tag 'net-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (58 commits) net/mlx5: HWS, fix matcher leak on resize target setup failure net/sched: hhf: clear heavy-hitter state on reset net/sched: dualpi2: clear stale classification on filter miss net/sched: act_bpf: use rcu_dereference_bh() to read the filter selftests: drv-net: tso: don't touch dangerous feature bits cxgb4: Fix decode strings dump for T6 adapters virtio_net: disable cb when NAPI is busy-polled sctp: fix addr_wq_timer race in sctp_free_addr_wq() selftests: net: bump default cmd() timeout to 20 seconds bridge: stp: Fix a potential use-after-free when deleting a bridge net/sched: sch_teql: Introduce slaves_lock to avoid race condition and UAF net: gianfar: dispose irq mappings on probe failure and device removal net: lan743x: Initialize eth_syslock spinlock before use net: libwx: fix VMDQ mask for 1-queue mode net: airoha: fix max receive size configuration fsl/fman: Free init resources on KeyGen failure in fman_init() netfilter: nftables: restrict checkum update offset netfilter: nftables: restrict linklayer and network header writes netfilter: nfnetlink_queue: restrict writes to network header netfilter: nft_fib: reject fib expression on the netdev egress hook ...

selftests/x86: Add shadow stack uprobe CALL test

2026-07-02T11:21:49+00:00

Add coverage for entry uprobes installed on CALL instructions while user shadow stack is enabled. The test puts an entry uprobe on a helper whose first instruction is a relative CALL, then verifies that the call/return sequence completes without SIGSEGV. This catches regressions where x86 uprobe CALL emulation updates the regular user stack but leaves the CET shadow stack stale. Signed-off-by: David Windsor Signed-off-by: Peter Zijlstra (Intel) Link: https://patch.msgid.link/b957039191118c5eba97d01d80c494b859f115a6.1782777969.git.dwindsor@gmail.com

selftests/mm: hmm-tests: include linux/mman.h to access MADV_COLLAPSE

2026-07-02T02:02:54+00:00

The following compilation error occurs with an old version of glibc due to a recent commit adding MADV_COLLAPSE testing: [root@localhost mm]# getconf GNU_LIBC_VERSION glibc 2.34 [root@localhost mm]# make CC hmm-tests hmm-tests.c: In function 'hmm_migrate_anon_huge_fault': hmm-tests.c:2355:27: error: 'MADV_COLLAPSE' undeclared (first use in this function); did you mean 'MADV_COLD'? 2355 | ret = madvise(map, size, MADV_COLLAPSE); | ^~~~~~~~~~~~~ | MADV_COLD hmm-tests.c:2355:27: note: each undeclared identifier is reported only once for each function it appears in make: *** [../lib.mk:225: /root/code/linux/tools/testing/selftests/mm/hmm-tests] Error 1 Include linux/mman.h (which provides the definition of MADV_COLLAPSE) to fix the build error. Link: https://lore.kernel.org/20260628143111.36863-1-zenghui.yu@linux.dev Fixes: e3d8707358ea ("selftests/mm/hmm-tests: test pagemap reads of PMD device-private entries") Signed-off-by: Zenghui Yu Reviewed-by: Lorenzo Stoakes Reviewed-by: Dev Jain Cc: David Hildenbrand Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: Liam R. Howlett Cc: Michal Hocko Cc: Mike Rapoport Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton

selftests/mm: pagemap_ioctl: use the correct page size for transact_test()

2026-07-02T02:02:54+00:00

There are several places in transact_test() where we use the hardcoded 0x1000 (4k) as page size, which is not always correct for architectures supporting multiple page sizes. Switch to use the correct page size. Otherwise ./ksft_pagemap.sh on a 16k-page-size arm64 box fails with $ ./ksft_pagemap.sh [...] # ok 96 mprotect_tests Both pages written after remap and mprotect # ok 97 mprotect_tests Clear and make the pages written # Bail out! ioctl failed # # Planned tests != run tests (117 != 97) # # Totals: pass:97 fail:0 xfail:0 xpass:0 skip:0 error:0 # [FAIL] not ok 1 pagemap_ioctl # exit=1 # SUMMARY: PASS=0 SKIP=0 FAIL=1 1..1 Link: https://lore.kernel.org/20260628101118.35861-1-zenghui.yu@linux.dev Fixes: 46fd75d4a3c9 ("selftests: mm: add pagemap ioctl tests") Signed-off-by: Zenghui Yu Cc: Muhammad Usama Anjum Cc: David Hildenbrand Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka Cc: Zenghui Yu Cc: Signed-off-by: Andrew Morton

selftests/mm: fix ksft_process_madv.sh test category

2026-07-02T02:02:52+00:00

ksft_process_madv.sh currently runs run_vmtests.sh with the mmap category. Update it to run the process_madv category, since ksft_mmap.sh already runs the mmap category tests. This avoids running mmap tests twice and ensures that process_madv tests are run through the kselftest harness. Link: https://lore.kernel.org/20260608103224.344101-1-sarthak.sharma@arm.com Fixes: 6ce964c02f1c ("selftests/mm: have the harness run each test category separately") Signed-off-by: Sarthak Sharma Reviewed-by: Mark Brown Reviewed-by: Dev Jain Acked-by: David Hildenbrand (Arm) Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Mark Brown Cc: Michal Hocko Cc: Mike Rapoport Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka Cc: Signed-off-by: Andrew Morton