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linux/kernel/bpf
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Jiayuan Chen 452a927cdd bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks 
[ Upstream commit beaf0e96b1 ]

bpf_lsm_task_to_inode() is called under rcu_read_lock() and
bpf_lsm_inet_conn_established() is called from softirq context, so
neither hook can be used by sleepable LSM programs.

Fixes: 423f16108c ("bpf: Augment the set of sleepable LSM hooks")
Reported-by: Quan Sun <2022090917019@std.uestc.edu.cn>
Reported-by: Yinhao Hu <dddddd@hust.edu.cn>
Reported-by: Kaiyan Mei <M202472210@hust.edu.cn>
Reported-by: Dongliang Mu <dzm91@hust.edu.cn>
Closes: https://lore.kernel.org/bpf/3ab69731-24d1-431a-a351-452aafaaf2a5@std.uestc.edu.cn/T/#u
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Link: https://lore.kernel.org/r/20260407122334.344072-1-jiayuan.chen@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-06-01 17:35:28 +02:00
..
preload libbpf: Move BPF_SEQ_PRINTF and BPF_SNPRINTF to bpf_helpers.h 2021-05-26 10:45:41 -07:00
arraymap.c bpf: Move bpf map owner out of common struct 2025-09-09 18:50:17 +02:00
bpf_inode_storage.c bpf: Fix spelling mistakes 2021-05-24 21:13:05 -07:00
bpf_iter.c bpf: Refactor BPF_PROG_RUN into a function 2021-08-17 00:45:07 +02:00
bpf_local_storage.c bpf: Annotate data races in bpf_local_storage 2023-05-24 17:36:44 +01:00
bpf_lru_list.c bpf: Address KCSAN report on bpf_lru_list 2024-03-01 13:21:55 +01:00
bpf_lru_list.h bpf: Address KCSAN report on bpf_lru_list 2024-03-01 13:21:55 +01:00
bpf_lsm.c bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks 2026-06-01 17:35:28 +02:00
bpf_struct_ops.c bpf: Handle return value of BPF_PROG_TYPE_STRUCT_OPS prog 2021-09-14 11:09:50 -07:00
bpf_struct_ops_types.h bpf: tcp: Support tcp_congestion_ops in bpf 2020-01-09 08:46:18 -08:00
bpf_task_storage.c bpf: Use this_cpu_{inc|dec|inc_return} for bpf_task_storage_busy 2022-10-26 12:34:41 +02:00
btf.c bpf: Release module BTF IDR before module unload 2026-04-18 10:33:23 +02:00
cgroup.c bpf: Reject narrower access to pointer ctx fields 2026-02-06 16:41:59 +01:00
core.c bpf: Fix oob access in cgroup local storage 2025-09-09 18:50:17 +02:00
cpumap.c xdp: Move conversion to xdp_frame out of map functions 2024-05-17 11:50:47 +02:00
devmap.c bpf: Use RCU-safe iteration in dev_map_redirect_multi() SKB path 2026-06-01 17:35:28 +02:00
disasm.c bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause 2021-09-02 14:49:23 +02:00
disasm.h bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause 2021-09-02 14:49:23 +02:00
dispatcher.c bpf: Remove bpf_image tree 2020-03-13 12:49:52 -07:00
hashtab.c bpf: fix possible endless loop in BPF map iteration 2025-06-04 14:37:54 +02:00
helpers.c bpf: Reject %p% format string in bprintf-like helpers 2025-08-28 16:24:01 +02:00
inode.c bpf: Avoid RCU context warning when unpinning htab with internal structs 2025-10-19 16:21:43 +02:00
Kconfig sock_map: Relax config dependency to CONFIG_NET 2021-07-15 18:17:49 -07:00
local_storage.c bpf: fix end-of-list detection in cgroup_storage_get_next_key() 2026-06-01 17:35:28 +02:00
lpm_trie.c bpf: Fix exact match conditions in trie_get_next_key() 2024-12-14 19:51:31 +01:00
Makefile bpf: Enable task local storage for tracing programs 2021-02-26 11:51:47 -08:00
map_in_map.c bpf: Defer the free of inner map when necessary 2024-03-26 18:21:12 -04:00
map_in_map.h bpf: Add map and need_defer parameters to .map_fd_put_ptr() 2024-02-23 08:54:42 +01:00
map_iter.c bpf: Introduce MEM_RDONLY flag 2022-05-01 17:22:24 +02:00
net_namespace.c bpf: Add support for forced LINK_DETACH command 2020-08-01 20:38:28 -07:00
offload.c bpf: restore the ebpf program ID for BPF_AUDIT_UNLOAD and PERF_BPF_EVENT_PROG_UNLOAD 2023-01-24 07:22:46 +01:00
percpu_freelist.c bpf: Initialize same number of free nodes for each pcpu_freelist 2022-11-26 09:24:38 +01:00
percpu_freelist.h bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI 2020-10-06 00:04:11 +02:00
prog_iter.c bpf: Refactor bpf_iter_reg to have separate seq_info member 2020-07-25 20:16:32 -07:00
queue_stack_maps.c bpf: Avoid deadlock when using queue and stack maps from NMI 2023-10-06 13:18:04 +02:00
reuseport_array.c bpf: Fix spelling mistakes 2021-05-24 21:13:05 -07:00
ringbuf.c bpf: Sync pending IRQ work before freeing ring buffer 2025-12-07 06:09:13 +09:00
stackmap.c bpf: Fix stackmap overflow check on 32-bit arches 2024-03-26 18:21:22 -04:00
syscall.c bpf: Move bpf map owner out of common struct 2025-09-09 18:50:17 +02:00
sysfs_btf.c bpf: Load and verify kernel module BTFs 2020-11-10 15:25:53 -08:00
task_iter.c bpf: Consolidate task_struct BTF_ID declarations 2021-08-25 10:37:05 -07:00
tnum.c bpf, tnums: Provably sound, faster, and more precise algorithm for tnum_mul 2021-06-01 13:34:15 +02:00
trampoline.c x86/ibt,ftrace: Search for __fentry__ location 2024-07-05 09:14:12 +02:00
verifier.c bpf: Do mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO 2026-06-01 17:35:10 +02:00