syzbot


bpf build error (5)

Status: upstream: reported on 2025/12/19 19:06
Reported-by: syzbot+876eead1deeef9d14785@syzkaller.appspotmail.com
First crash: 86d, last: 86d
✨ AI Jobs (2)
ID Workflow Result Correct Bug Created Started Finished Revision Error
2fdef2d0-aa47-4aec-8ca2-9f2b08320255 repro bpf build error (5) 2026/03/10 15:46
39a487b5-d2c0-4fcd-95df-bfd2b758b2e7 repro 💥 bpf build error (5) 2026/03/07 19:24 2026/03/07 19:24 2026/03/07 19:29 31e9c887f7dc24e04b3ca70d0d54fc34141844b0 make failed: failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "128" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/build/4b4c31d525b6e2feafbdc64cfa151e66c0fc1718" "-s" "bzImage" "compile_commands.json"]: exit status 2 /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/drivers/block/loop.c:1517:12: warning: stack frame size (2872) exceeds limit (2048) in 'lo_ioctl' [-Wframe-larger-than] 1517 | static int lo_ioctl(struct block_device *bdev, blk_mode_t mode, | ^ 1 warning generated. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/sound/usb/mixer_s1810c.c:589:5: warning: stack frame size (2360) exceeds limit (2048) in 'snd_sc1810_init_mixer' [-Wframe-larger-than] 589 | int snd_sc1810_init_mixer(struct usb_mixer_interface *mixer) | ^ 1 warning generated. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/net/ethtool/cmis_fw_update.c:432:1: warning: stack frame size (2392) exceeds limit (2048) in 'ethtool_cmis_fw_update' [-Wframe-larger-than] 432 | ethtool_cmis_fw_update(struct ethtool_cmis_fw_update_params *fw_update) | ^ 1 warning generated. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/drivers/target/target_core_xcopy.c:657:13: warning: stack frame size (2296) exceeds limit (2048) in 'target_xcopy_do_work' [-Wframe-larger-than] 657 | static void target_xcopy_do_work(struct work_struct *work) | ^ 1 warning generated. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/fs/coredump.c:1156:6: warning: stack frame size (2232) exceeds limit (2048) in 'vfs_coredump' [-Wframe-larger-than] 1156 | void vfs_coredump(const kernel_siginfo_t *siginfo) | ^ 1 warning generated. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/drivers/media/i2c/cx25840/cx25840-core.c:2294:12: warning: stack frame size (5048) exceeds limit (2048) in 'cx25840_reset' [-Wframe-larger-than] 2294 | static int cx25840_reset(struct v4l2_subdev *sd, u32 val) | ^ /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/drivers/media/i2c/cx25840/cx25840-core.c:1363:12: warning: stack frame size (3352) exceeds limit (2048) in 'set_input' [-Wframe-larger-than] 1363 | static int set_input(struct i2c_client *client, | ^ 2 warnings generated. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/drivers/media/dvb-frontends/dib3000mb.c:684:12: warning: stack frame size (2424) exceeds limit (2048) in 'dib3000mb_fe_init_nonmobile' [-Wframe-larger-than] 684 | static int dib3000mb_fe_init_nonmobile(struct dvb_frontend* fe) | ^ /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/drivers/media/dvb-frontends/dib3000mb.c:116:12: warning: stack frame size (2520) exceeds limit (2048) in 'dib3000mb_set_frontend' [-Wframe-larger-than] 116 | static int dib3000mb_set_frontend(struct dvb_frontend *fe, int tuner) | ^ 2 warnings generated. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/lib/crypto/curve25519-hacl64.c:757:6: warning: stack frame size (2968) exceeds limit (2048) in 'curve25519_generic' [-Wframe-larger-than] 757 | void curve25519_generic(u8 mypublic[CURVE25519_KEY_SIZE], | ^ 1 warning generated. /usr/local/google/home/dvyukov/syzkaller/agent/workdir/cache/src/7c6927cf97ead5efb65d90bedfcefafdebb7aa2a/net/qrtr/ns.c:588:13: warning: stack frame size (2232) exceeds limit (2048) in 'qrtr_ns_worker' [-Wframe-larger-than] 588 | static void qrtr_ns_worker(struct work_struc
Discussions (1)
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[syzbot] bpf build error (5) 0 (1) 2025/12/19 19:06
Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream bpf build error (4) -1 2 1169d 1165d 0/29 auto-obsoleted due to no activity on 2023/04/27 22:39
upstream bpf build error (3) kernel -1 15 1640d 1651d 20/29 fixed on 2021/11/10 00:50
upstream bpf build error net -1 1 2484d 2484d 0/29 closed as invalid on 2019/05/24 09:24
upstream bpf build error (2) -1 1 2296d 2296d 0/29 closed as invalid on 2019/11/28 08:37

Sample crash report:
failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "64" "ARCH=x86_64" "LLVM=1" "bzImage"]: exit status 2

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/15 18:54 bpf ba34388912b5 d6526ea3 .config console log report ci-upstream-bpf-kasan-gce bpf build error
* Struck through repros no longer work on HEAD.