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Eduard Zingerman 9ea8fb379f libbpf: Verify that arena map exists when adding arena relocations 
[ Upstream commit 42be23e8f2 ]

Fuzzer reported a memory access error in bpf_program__record_reloc()
that happens when:
- ".addr_space.1" section exists
- there is a relocation referencing this section
- there are no arena maps defined in BTF.

Sanity checks for maps existence are already present in
bpf_program__record_reloc(), hence this commit adds another one.

[1] https://github.com/libbpf/libbpf/actions/runs/16375110681/job/46272998064

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250718222059.281526-1-eddyz87@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-08-20 18:30:29 +02:00
..
accounting delayacct: track delays from IRQ/SOFTIRQ 2023-04-18 16:39:34 -07:00
arch x86/rdrand: Disable RDSEED on AMD Cyan Skillfish 2025-07-17 18:37:14 +02:00
bootconfig tools/bootconfig: Fix the wrong format specifier 2025-02-08 09:58:00 +01:00
bpf bpftool: Fix memory leak in dump_xx_nlmsg on realloc failure 2025-08-15 12:13:40 +02:00
build tools/build: Don't pass test log files to linker 2025-05-29 11:02:08 +02:00
certs tools/certs: Add print-cert-tbs-hash.sh 2022-05-23 18:47:49 +03:00
cgroup memcg_slabinfo: Fix use of PG_slab 2025-08-15 12:13:46 +02:00
counter tools/counter: Remove unneeded semicolon 2023-12-20 11:43:31 -05:00
crypto crypto: tools/ccp - Remove unused variable 2024-08-30 18:22:30 +08:00
debugging tools: Add new "test" taint to kernel-chktaint 2022-09-07 14:51:12 -06:00
firewire treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
firmware Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
gpio gpio: sloppy-logic-analyzer remove reference to rcu_momentary_dyntick_idle() 2024-12-05 14:01:28 +01:00
hv tools/hv: fcopy: Fix incorrect file path conversion 2025-08-01 09:48:40 +01:00
iio tools: iio: rm .*.cmd when make clean 2024-09-05 19:27:13 +01:00
include tools/nolibc: define time_t in terms of __kernel_old_time_t 2025-08-20 18:30:23 +02:00
kvm/kvm_stat tools/kvm_stat: use canonical ftrace path 2023-03-29 06:52:08 -04:00
laptop change email address for Pali Rohár 2020-04-10 15:36:22 -07:00
leds .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
lib libbpf: Verify that arena map exists when adding arena relocations 2025-08-20 18:30:29 +02:00
memory-model tools/memory-model: simple.txt: Fix stale reference to recipes-pairs.txt 2024-09-13 23:56:44 -07:00
mm tools/mm: fix compile error 2024-11-14 22:43:48 -08:00
net tools: ynl-gen: validate 0 len strings from kernel 2025-05-29 11:03:12 +02:00
objtool objtool/rust: add one more noreturn Rust function for Rust 1.89.0 2025-07-24 08:56:22 +02:00
pci tools: PCI: Remove unused BILLION macro 2024-09-13 22:37:06 +00:00
pcmcia .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
perf perf record: Cache build-ID of hit DSOs only 2025-08-15 12:13:58 +02:00
power pm: cpupower: Fix the snapshot-order of tsc,mperf, clock in mperf_stop() 2025-08-20 18:30:27 +02:00
rcu tools/rcu: Remove RCU Tasks Rude asynchronous APIs from rcu-updaters.sh 2024-07-29 07:39:32 +05:30
sched_ext tools/sched_ext: Add helper to check task migration state 2025-03-22 12:54:28 -07:00
scripts tools/build: Fix s390(x) cross-compilation with clang 2025-08-20 18:30:24 +02:00
sound ASoC: dapm-graph: set fill colour of turned on nodes 2025-03-22 12:54:20 -07:00
spi spi: spidev_fdx: Fix the wrong format specifier 2024-09-04 16:50:33 +01:00
testing ktest.pl: Prevent recursion of default variable options 2025-08-20 18:30:29 +02:00
thermal tools/thermal/tmon: Fix compilation warning for wrong format 2024-01-02 09:33:19 +01:00
time treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
tracing rtla/timerlat_top: Abort event processing on second signal 2025-02-21 14:01:25 +01:00
usb usbip: tools: Fix detach_port() invalid port error path 2024-10-29 04:23:23 +01:00
verification tools/rv: Do not skip idle in trace 2025-08-15 12:13:46 +02:00
virtio Fix typo in vringh_test.c 2024-11-06 04:40:07 -05:00
wmi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
workqueue workqueue: remove unnecessary import and function in wq_monitor.py 2024-03-25 10:11:32 -10:00
writeback writeback: add wb_monitor.py script to monitor writeback info on bdi 2024-05-05 17:53:51 -07:00
Makefile sched_ext: Add scx_simple and scx_example_qmap example schedulers 2024-06-18 10:09:17 -10:00